Densities of Aromatic Hydrocarbons

Landolt-Börnstein Numerical Data and Functional Relationships in Science and Technology New Series / Editor in Chief: W. Martienssen

Group IV: Physical Chemistry Volume 8

Thermodynamic Properties of Organic Compounds and their Mixtures Subvolume E Densities of Aromatic Hydrocarbons

R.C. Wilhoit, X. Hong, M. Frenkel, K.R. Hall

Edited by K.R. Hall and K.N. Marsh

12 3

Editors K.R. Hall Thermodynamics Research Center TheTexas A&M University System College Station, Texas 77843-3111, USA

K.N. Marsh former Thermodynamics Research Center TheTexas A&M University System College Station, Texas 77843-3111, USA now University of Christchurch New Zealand

Authors R.C. Wilhoit X. Hong M. Frenkel K.R. Hall Thermodynamics Research Center TheTexas A&M University System College Station, Texas 77843-3111, USA

Preface

Critically evaluated experimental data covering the densities of organic compounds is essential for both scientific and industrial applications. Knowledge of densities is important in many areas, including custody transfer of materials, product specification, development of various predictive methods, and for characterizing compounds and estimating their purity. Various compilations of densities for organic compounds have been published. The early LandoltBörnstein compilation [23-ano] contained recommended values at specific temperatures. International Critical Tables [28-ano-1] provided recommended densities at 0 °C and values of constants for either a second or third order polynomial equation to represent densities as a function of temperature. This compilation also gave the range of validity of the equation and the limits of uncertainty, references used in the evaluation and those not considered. This compilation is one of the most comprehensive ever published. Timmermans [50-tim, 65-tim], Dreisbach [55-dre, 59-dre, 61-dre] and Landolt-Börnstein [71-ano] published additional compilations, primarily of experimental data. These compilations contained experimental data along with reference sources but no estimates of uncertainty for the data nor recommended values. The Thermodynamics Research Center has published recommended values for the densities of organic compounds since 1942 in its two loose leaf publications: TRC Thermodynamic Tables - Hydrocarbons and Non-Hydrocarbons. These compilations are updated with four supplements per year. References to the literature values used in the selection and those not used in the selection appear in the references for each table. The accuracy of the values ia apparent from the number of significant figures provided. More recently, the Design Institute of Physical Property Data, Project 801 has assembled a set of recommended equations for the densities of over 1500 compounds [89-dau/dan, 91-dau/dan, 92-dau/dan, 93-dau/dan, 94-dau/dan, 95-dau/dan, 96-dau/dan, 97-dau/dan]. Densities are represented by an equation fit to selected values from the freezing temperature to the critical temperature. References to sources of data used in the evaluation and those not used are given along with a quality assessment. In many cases, the equation does not fit density values at intermediate temperatures, especially at 293.15 K and 298.15 K, within the experimental uncertainty. Thus, the equation is not useful for purity comparisons, custody transfer, or product specification when the highest accuracy is required. Smith and Srivastava [86-smi/sri, 86-smi/sri1] recently have published a compilation (in two volumes) which contains recommended values in tabular form as well as equations with statistical information regarding the fit. However, this compilation contains no indication of data quality or uncertainties. The present volume contains densities for monocyclic aromatic hydrocarbons including alkylbenzenes, alkenylbenzenes, alkynylbenzenes, alkadienylbenzenes, dialkenylbenzenes, alkatrienylbenzenes, alkatetraenylbenzenes, and other related compounds which have been collected from the literature published from 1870 to early 1997. The various compilations listed above also have been consulted for sources of original data. This volume continues our effort in evaluation of the densities of organic compounds [see volume IV/8B (96-wil/mar) for the densities of alkanes, volume IV/8C (96-wil/mar-1) for the densities of alkenes, alkynes and alkadienes, and volume IV/8D (97-wil/hon) for the densities of monocyclic non-aromatic hydrocarbons]. All experimental density values have been evaluated critically and assigned numerical uncertainties individually. These assessments have been used to derive an equation to fit the data and to obtain recommended values with uncertainties. Detailed evaluation procedures appear in Chapter 1. Algorithms for the automatic selection of data used in the fit and for the selection of the type of equation and order of polynomial have been developed. The algorithms depend upon the assigned uncertainties, the distribution of density values over the experimental temperature range, and the magnitude and distribution of differences between observed and smoothed values. These algorithms can fit any kind of data to a function of independent variables. We have collected data for 674 compounds, consisting of data sets drawn from 1137 sources.

The volume contains six chapters; a list of references, and two indexes (Chemical Abstracts Service Registry Number Index and Chemical Name Index). Chapter 1 contains: a short introduction; a description of the tables; a detailed description of the methods used in the evaluation, selection and smoothing process; a glossary of symbols and a description of the nomenclature used. Chapter 2 covers the alkylbenzenes, Chapter 3 contains the alkenylbenzenes, Chapter 4 has the alkynylbenzenes, alkadienylbenzenes, and dialkenylbenznes, Chapter 5 provides the unsaturated alkylbenzenes of general formula CnH2n-12, and Chapter 6 presents the unsaturated alkylbenzenes of general formula CnH2n-14. The tables contain the original literature data along with their estimated uncertainties and the evaluated data in both numerical form and as coefficients to equations with selected statistical information. When data cover a sufficient temperature range, graphical plots of the deviations of the experimental data from the recommended equation are given. The chemical name index contains the IUPAC names for the compounds, as well as alternate names that often appear in practice. This volume should be useful to a wide community of researchers, data specialists, and engineers working in the field of physical and organic chemistry, chemical engineering, material science, environmental chemistry, chemical aspects of energy technology, and those engaged in the development of new predictive procedures. The book should also be of use to students and faculty in Chemistry and Chemical Engineering departments at universities as a reference book of evaluated thermophysical properties.

College Station, April 1998

The Editors

Acknowledgments The authors wish to express their sincere appreciation to staff members of the Thermodynamics Research Center (TRC), part of the Chemical Engineering Division of the Texas Engineering Experiment Station in The Texas A&M University System. Our special thanks to Manuf Chasmawala, Cheryl Clark, Yong Lee, Brad Chin, and James Requenez for their assistance in data collection and entry, formatting the text, preparing the graphs, and composing the camera-ready copy of the manuscript.

College Station, April 1998

R. C. Wilhoit, X. Hong, M. Frenkel, K. R. Hall

References 23-ano

Landolt-Börnstein Physikalisch-Chemische Tabellen, Hauptwerk, Vol. 1, Roth, W.A., Scheel, K. (eds.), Springer-Verlag: Berlin (1923).

28-ano-1

International Critical Tables of Numerical Data, Physics, Chemistry and Technology Vol. III, Washburn, E. W. (ed.), McGraw-Hill: New York (1928).

50-tim

Timmermans, J.; Physico-Chemical Constants of Pure Organic Compounds, Vol. 1, Elsevier: New York (1950).

55-dre

Dreisbach, R. R.; Physical Properties of Chemical Compounds, Advances in Chemistry Series No. 15, Am. Chem. Soc.: Washington, D. C. (1955).

59-dre

Dreisbach, R. R.; Physical Properties of Chemical Compounds - II, Advances in Chemistry Series No. 22, Am. Chem. Soc.: Washington, D. C. (1959).

61-dre

Dreisbach, R. R.; Physical Properties of Chemical Compounds, Advances in Chemistry Series No. 29, Am. Chem. Soc.: Washington, D.C. (1961).

65-tim

Timmermans, J.; Physico-Chemical Constants of Pure Organic Compounds, Vol. II, Elsevier: New York (1965).

71-ano

Landolt-Börnstein Sechste Auflage, II Band, Eigenschaften der Materie in ihren Aggregatzuständen, 1 Teil, Mechanisch-thermische Zustandsgrössen. SpringerVerlag: Berlin (1971).

86-smi/sri

Smith, B. D.; Srivastava, R.; Thermodynamic Data for Pure Compounds, Part B. Halogenated Hydrocarbons and Alcohols, Elsevier: New York (1986).

86-smi/sri-1

Smith, B. D.; Srivastava, R.; Thermodynamic Data for Pure Compounds, Part A. Hydrocarbons and Ketones, Elsevier: New York (1986).

89-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Taylor & Francis: London (1989).

91-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 1. Taylor & Francis: London(1991).

92-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 2. Taylor & Francis: London (1992).

93-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 3. Taylor & Francis: London (1993).

94-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 4. Taylor & Francis: London (1994).

95-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 5. Taylor & Francis: London (1995).

96-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 6. Taylor & Francis: London (1996).

96-wil/mar

Wilhoit, R. C.; Marsh, K. N.; Hong, X.; Gadalla, N.; Frenkel, M.: Densities of Aliphatic Hydrocarbons: Alkanes. Landolt-Börnstein, New Series, Vol. IV/8B, Springer-Verlag: Berlin (1996).

96-wil/mar-1

Wilhoit, R. C.; Marsh, K. N.; Hong, X.; Gadalla, N.; Frenkel, M.: Densities of Aliphatic Hydrocarbons: Alkenes, Alkadienes, Alkynes and Miscellaneous Compounds. Landolt-Börnstein, New Series, Vol. IV/8C, Springer-Verlag: Berlin (1996).

97-dau/dan

Daubert, T. E.; Danner, R. P.; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, Supplement 7. Taylor & Francis: London (1997).

97-wil/hon

Wilhoit, R. C.; Hong, X.; Frenkel, M.; Hall, K. R.: Densities of Monocyclic Hydrocarbons. Landolt-Börnstein, New Series, Vol. IV/8D, Springer-Verlag: Berlin (1997).

1.1 Basic Concepts

1

1 Introduction 1.1 Basic Concepts The mass density of a substance is an intensive quantity defined by:

ρ = m/v

(1.1)

where m is the mass and v is the volume of the sample. Both these quantities are extensive quantities. Other densities often referred to in the literature are the relative density and the molar density. Relative density, also called specific gravity, is:

ρr = ρ / ρ0

(1.2)

where ρ0 is the density of a standard substance. It is necessary to specify the conditions of temperature and pressure for the standard substance. The most common reference material is water often at the temperature of its maximum density, 4 °C, at atmospheric pressure. The molar density is defined as

ρ m = 1/V

(1.3)

where V is the volume occupied by one mole of the substance. The only densities reported in this volume are the mass densities; relative and molar densities have been converted to mass densities, and all densities have been reported in SI units. If the mass, m, in equation (1.1) has not been corrected for air bouancy it gives the apparent density in air. The API specific gravity is: ρ (API) = 141.5/ρr – 131.5, in which ρr is ρ(288.68 K)/ρο(288.68 K), and the standard substance is water at 288.68 K (60 °F). The density of a material is a function of temperature and pressure but its value at some standard condition (for example, 293.15 K or 298.15 K at either atmospheric pressure or at the vapor pressure of the compound) often is used to characterize a compound and to ascertain its purity. Accurate density measurements as a function of temperature are important for custody transfer of materials when the volume of the material transferred at a specific temperature is known but contracts specify the mass of material transferred. Engineering applications utilize the density of a substance widely, frequently for the efficient design and safe operation of chemical plants and equipment. The density and the vapor pressure are the most often-quoted properties of a substance, and the properties most often required for prediction of other properties of the substance. In this volume, we do not report the density of gases, but rather the densities of solids as a function of temperature at atmospheric pressure and the densities of liquids either at atmospheric pressure or along the saturation line up to the critical temperature. The purpose of this compilation is to tabulate the densities of compounds, hence only minimal description of experimental methods used to measure the density of liquids or solids appears. Detailed descriptions of methods for density determination of solids, liquids and gases, along with appropriate density reference standards, appear in a chapter by Davis and Koch in Physical Methods of Chemistry, Volume VI, Determination of Thermodynamic Properties [86-ros/bae]. The two principal experimental apparatuses used to determine the density of a liquid are: the pycnometer and the vibrating tube densimeter. The pycnometer method involves measuring the mass of a liquid in a vessel of known volume. The volume of the pycnometer, either at the temperature of measurement or at some reference temperature, is determined using a density standard, usually water or mercury. Using considerable care and a precision analytical balance accurate to ±10-5 g, it is possible to achieve densities accurate to a few parts in 106 with a pycnometer having a volume of 25 cm3 to 50 cm3.

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1.1 Basic Concepts - 1.2 Scope of the Compilation

It is common to achieve accuracies of 1 part in 105 in using equation (1.1) with pycnometers as small as 5 cm3 and routine measurements can achieve 1 part in 104. However the main sources of error in assigning density to a particular compound in a particular state arise from factors other than the measurment of mass and volume. See Section 1.4.1 The vibrating tube densimeter relies upon the fact that the frequency f of vibration for a U or V shaped tube depends upon the mass of material in the tube:

ρ = A/ f 2 + B

(1.4)

Calibration of the apparatus is necessary; usually water and air or nitrogen are the reference materials. Vibrating tube densimeters designed to operate close to atmospheric pressure can achieve repeatability of parts in 106. If the reciprocal of the frequency is linear in density, accuracies of 1 part in 105 are readily achievable. The principal experimental method used to measure the density of a solid is determination of the mass of liquid displaced by a known mass of solid. It is essential that the solid have no appreciable solubility in the liquid, that all occluded air be removed from the solid and that the density of the displacement fluid be less than that of the solid lest the solid float. Densities of crystalline solids also can be determined from the dimensions of the unit cell. Davis and Koch discuss other methods for measuring the density of liquids and solids such as: hydrostatic weighing of a buoy and flotation methods.

1.2 Scope of the Compilation Volume IV/8E presents observed values for the densities of hydrocarbons containing one benzene ring, many of which are important industrial compounds. These values represent a compilation and evaluation of data from the scientific literature covering approximately the past 100 years. The values presented come from the TRC Source Database. The Thermodynamics Research Center has assembled these data over a period of years and has used them to provide the evaluated density values listed in the TRC Thermodynamic Tables - Hydrocarbons. An additional literature search has been performed immediately before producing this compilation to locate new or missing data and to bring the collection up-to-date. This compilation should include at least 90% of the pertinent data reported in the literature. The usual experimental conditions are in contact with air at one atmosphere below the normal boiling point of the hydrocarbon, and in equilibrium with the vapor phase above the normal boiling point. In the summary tables, temperatures reported on the Kelvin scale have been obtained by adding 273.15 to temperatures originally given on the Celsius scale. Densities have units of kilograms per cubic meter (kg⋅m-3). Values reported in units of grams per milliliter, where the liter is “the volume of one kilogram of water at its temperature of maximum density” convert to kg⋅m-3 when multiplied by 999.972 (as defined by the 12th General Conference of the International Committee on Weights and Measure, 1964). Values of specific gravity relative to water at a stated reference temperature become density upon multiplication by the accepted density of water at the reference temperature. Most reported densities for liquids below the boiling point apply to the airsaturated liquid. Compounds are identified by an IUPAC approved name [93-ano-1], the empirical molecular formula, and the Chemical Abstracts Service Registry Number. A summary table is available for each compound which includes the reported temperature and density values, an assigned uncertainty for the density, the difference between the observed and smoothed density values and an index key to the source of the data. A complete list of references, identified by the index keys, appears at the end of the volume. Where appropriate, tables of smoothed, recommended values are given at integral multiples of 10 K over the experimental range of temperatures. Values at 293.15 K and 298.15 K are included when they are in the range of the original data set. The recommended values also have assigned uncertainties.

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1.3 Description of Tables - 1.4 Evaluation, Selection, and Smoothing of Data

3

1.3 Description of Data Tables Data for a particular compound are selected, evaluated and smoothed in one of four ways, depending upon the number and accuracy of the reported values and upon their distribution over the temperature range. Case 1. When the data set consists of at least four acceptable, effectively distinct values (see section 1.5.3), the densities in selected subsets are fit to a function of temperature using the least squares criterion. A summary table for the selected set gives the densities, their estimated uncertainties, the deviations between observed and calculated values, an index key to the list of references and a plotting symbol. If sufficient space remains, some data outside the selected set also are included in the summary table along with reference keys to any remaining data. A plot of the deviations between observed and calculated values is shown for the selected subset. Error bars indicate the size of the estimated uncertainties for the data. Distinct plotting symbols identify the five data sources that have the smallest average estimated uncertainties. A single symbol represents all remaining data in the selected set. A table consisting of smoothed, recommended values (calculated from the fitted functions) is also given. Estimated uncertainties are given for the recommended values which also appear as a continuous line on the deviation plot. Densities of crystal phases are in a separate section of the table. In most cases, these densities have not been fit as a function of temperature. Values of parameters, statistical measures of the fit, and references to sources of critical constants appear at the beginning of these sections. Case 2. For data sets that do not meet the criteria of Case 1, but contain acceptable values over a temperature range of at least two degrees, the results are smoothed using a linear function of temperature with an estimated coefficient of thermal expansion. A table of smoothed recommended values is presented. Case 3. For data sets that do not meet the criteria of either Case 1 or 2 but contain two or more values at a single temperature, a recommended value is given for this temperature by taking a weighted average of the observed values. Case 4. For data sets that contain only single values at one or two temperatures, the reported values are given rather than recommended values.

1.4 Evaluation, Selection and Smoothing of Data 1.4.1 Assignment of Uncertainties The Thermodynamics Research Center staff have assigned an uncertainty value to each observed and recommended density value listed in the tables. The true value of the property has a 95% probability of being in the range covered by + or - the uncertainty about the reported value. Assignment of uncertainty is a subjective evaluation based upon what is known about the measurement when the value is entered into the database, and includes the effects of all sources of experimental error. The errors have been propagated to the listed density at the reported temperature. Uncertainties reported by the investigators are considered but not necessarily adopted. Often, investigators report repeatability, but they usually do not provide uncertainty. Errors in density result from errors in temperature measurement or control; calibration of instruments; transfer, handling and weighing of samples; and impurities in the samples. At temperatures well below the critical temperature and near room temperature, standard techniques easily achieve accuracies of ±0.05%. For the compounds in this compilation, that level corresponds to about ±0.4 kg⋅m-3. Under these conditions, errors in temperature are not very significant. This level of accuracy only requires

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1.4 Evaluation, Selection, and Smoothing of Data

temperatures to be known within ± 0.5 K. At temperatures approaching the critical temperature, measurements become more demanding because of the rapid increase in the magnitude of the coefficient of thermal expansion. Greater accuracy, in general, requires careful attention to calibration, mass determination and sample handling techniques. It is assumed that values obtained by pycnometers have been corrected for buoyancy of air, unless the author specifically says otherwise. This correction increases the apparent density by 0.05 - 0.1%. When this correction has not been made, the estimated uncertainty is greater. Most measurements of densities of liquids below their normal boiling points are made in the presence of air. Densities reported here refer to liquids in equilibrium with a gas phase consisting of a mixture or air and vapor at a total pressure of one atmosphere below the normal boiling point and of vapor at the equilibrium vapor pressure above the boiling point. Thus air is not regarded as an impurity. The effect of dissolved air and other gases on the densities of liquid hydrocarbons has been reported by Ashcroft and Ben Isa [97-ash/ben]. The differences they observed between the density of a liquid saturated with air at 1 atm and 298.15 K and the air free liquid are shown in Table 1. Table 1. Difference between densities of liquids saturated with air at 1 atm and 298.15 K and air free liquids at the same temperature Compound Compound ρ (air sat.) -ρ (air free) ρ (air sat.) -ρ (air free) -3 kg⋅m kg⋅m-3 Heptane -0.089 Tetradecane -0.054 Octane -0.081 Hexadecane -0.047 Nonane -0.072 Cyclohexane -0.068 Decane -0.067 Methylcyclohexane -0.077 Dodecane -0.059 Toluene -0.062 A major source of error in most measurements is the presence of impurities in the sample. The effect of an impurity depends upon its amount in the sample and upon the difference between its density and the density of the principal constituent. Even when the sample purity is provided quantitatively, the impurities often are not identified individually. Nevertheless, a report of sample purity reduces the estimated uncertainty because it can be taken as evidence that the investigator has considered sample purity. The most ubiquitous impurity in liquids is water, and, because its density differs significantly from those of hydrocarbons, it is a common source of error. Exclusion of water requires that the sample be protected from the atmosphere during transfer, and that special precautions be taken to remove the sample from containers. The principal source of high purity samples from 1952 to 1960 was the American Petroleum Institute Research Project 6 at Carnegie-Mellon University. These samples were distributed to researchers through the API Project 44 from Carnegie-Mellon University and Texas A&M University. Phillips Petroleum Co. also supplied high purity samples, but they ceased doing so. Samples for 300 compounds from API Project 42 are available from the Thermodynamics Research Center, along with limited supplies of samples for compounds from API Project 6.

1.4.2 Quantitative Effect of Impurity on Density of Liquids The molar volume of a mixture of components, V, in terms of the mole fractions xi and partial molar volumes of the components Vi is: c

V = ∑ xiVi

(1.5)

i =1

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1.4 Evaluation, Selection, and Smoothing of Data

5

For an ideal solution, the partial molal volumes equal the molar volumes of the pure liquid components. Denoting component the main components as 1 and the impurities as > 1, the volume becomes: c

V = x1V1 + ∑ xiVi .

(1.6)

ρ = M /V

(1.7)

i=2

Then using,

and the molar mass of the mixture: c

M = ∑ xi M i

(1.8)

i =1

and assuming that the xi are small for i > 1, then

ρ=

c  ρ1   1 − ρ 1 ∑ wi vi   w1  i=2

(1.9)

where vi = Vi /Mi are partial specific volumes of the impurities and wi is the mass fraction of component i. Finally, the density of the mixture is related to the density of the main component and the impurities i by:

ρ=

c w ρ1  1 − ρ1 ∑ i  w1  i =2 ρi 

(1.10)

The observed value of the density of a sample is sometimes presented as evidence of its purity. Assuming the sample contains a single impurity, equation (1.10) can be solved for ρ – ρ1:

ρ − ρ 1 = ρ 1 (1 − w1 − ρ 1 w2 / ρ 2 ) / w1

(1.11)

If water is the single impurity, with ρ2 = 1000 kg⋅m-3 and ρ1 = 800 kg⋅m-3, equation (1.10) gives the values summarized in Table 2. Table 2. Effect of water as an impurity on density of a sample. 100 w2 (ρ − ρ1)/ kg⋅m-3 0.02 0.032 0.05 0.080 0.10 0.16 0.2 0.32 If we replace ρ – ρ1 by its uncertainty u in equation (1.11) then w2 is the minimum value of the mass fraction of the impurity that could be reliably detected. The uncertainty in ρ – ρ1 includes the uncertainty in the measurement of ρ but also the uncertainty in ρ1 , the density of the pure sample. The value of ρ1 must be determined for a sample whose purity is known, by some independent means, with an accuracy considerably greater than the one being tested. An example using equation (1.11) and Table 3 is the determination of a small impurity of 1,2-diethylbenzene in 1,4-diethylbenzene. Table 3 contains numerical solutions of equation (1.11) at various densities and uncertainties. The selected densities of . 1,2- and 1,4-diethylbenzene are (876.0 ± 0.1) kg⋅m-3 and (858.22 ± 0.07) kg⋅m-3 respectively at 298.15 K. Assuming the density of the sample with the impurity is accurate to within ±0.2 kg⋅m-3, the total uncertainty is {(0.2)2 + (0.07)2}1/2 = 0.21 kg⋅m-3. Because ρ1/ρ2 = 0.980, |ρ1 -ρ2| / u = 83.9.

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1.4 Evaluation, Selection, and Smoothing of Data

Interpolation with these values from Table 3 indicates that the minimum mass fraction of 1,2-diethylbenzene that can be detected by density measurement is 0.014. This corresponds to a purity of 98.6 mass %. The minimum detectable mass fraction of 1,3-diethylbenzene is 0.127 for the same assumptions. Hence density measurement is not a sensitive method to determine purity when the density of the impurity is close to that of the compound under consideration. Table 3. Minimum mass fraction of impurity detectable by density measurement for a mixture. ρ1 /ρ2

ρ2 − ρ1 / u 500 200 100 50 20 10 5 2 1

0.8 0.0025 0.0062 0.0123 0.024 0.059 0.111 0.200 0.385 0.556

0.9 0.0022 0.0055 0.0110 0.022 0.053 0.100 0.182 0.357 0.526

0.95 0.0021 0.0052 0.0104 0.021 0.050 0.095 0.174 0.345 0.513

1.0 0.0020 0.0050 0.0099 0.020 0.048 0.091 0.167 0.333 0.500

1.05 0.0019 0.0047 0.0094 0.019 0.046 0.087 0.160 0.323 0.488

1.1 0.0018 0.0045 0.0090 0.018 0.044 0.083 0.154 0.312 0.476

1.2 0.0017 0.0041 0.0083 0.016 0.040 0.077 0.143 0.294 0.454

1.4.3 Procedure for Selection and Smoothing of Density Values - Case 1 A selected subset of the reported densities is fit to functions of temperature using the least squares criterion. Up to a boundary temperature Tb (approximately 0.8Tc), the calculated density ρ is represented by a polynomial in temperature with coefficients a of order p, x

k

p

ρ x = ∑ ak T k .

(1.12)

k =0

Above Tb the smoothed values are given by a modification of the Guggenheim equation [67-gug]

(

)[

ρ x = 1 + 1.75θ + 0.75θ 3 ρ c + b1 ( Tc − T ) + b2 ( Tc − T ) + b3 (Tc − T ) + b4 ( Tc − T ) 2

3

4

]

(1.13)

where Tc is the critical temperature and θ = (1-T/Tc)1/3. Selected values of critical constants are constant. Continuity with equation (1.12) results from forcing the two functions and their first derivatives with respect to temperature to be equal at the boundary. When no values are available above this temperature, only the polynomial is used. The following steps, implemented by a computer program written in C, generate the smoothed, recommended values. Input to the program consists of the set of observed density values, temperatures, estimated uncertainties, critical constants and values of certain parameters used by the program. Step 1. Separate the initial data into two sets, corresponding to temperatures above and below Tb Step 2. Make an initial selection from the low temperature set by rejecting all points with zero uncertainty and all points with uncertainties above a limit determined by the data selection algorithm described in section 1.5.2. Zero uncertainties are assigned to values that are not experimental and are included for comparison only (these are most often values recommended in other compilations). Step 3. Determine the effective number of data values, ne, as described in 1.5.3. If the effective number of values is less than four, terminate the calculation. If the total number of values is more than eight and the effective number is greater than or equal to four but less than eight, make another initial data selection with relaxed selection criteria. .

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Step 4. For the j-th value in the set calculate normalized values, ρ and T and weighting factors, w j = 1 / u 2j where uj is the uncertainty assigned to the j-th observed density and ρ n , j = ρ j − ρ n,j

n,j,

where ρ is the mean value of the observed density in the set. and Tn , j = T k − T k where T k is the mean value of the T jk value in the set.. Step 5. Using ρ = a1T , fit the data subject to least squares with points weighted by w . n

n

j

Step 6. Calculate the standard deviation σ for this fit. Eliminate any points from this set for which | δ | > 3.5σ, where δ j = ρ j − ρ x , j . j

Step 7. Fit the remaining normalized values to a series of polynomials, ρ n = ∑ a k T k , starting with order 1 and increasing in order. Use wj as weighting factors and stop increasing the order when satisfying one of the following conditions: 1. A value of p given as an input parameter to the program is reached, or . [1 + 1 / (n − k )]2 χ 2k − 1 (see glossary of symbols) and the deviations pass the random 2. χ 2k < 11 deviation test (see 1.5.4). Step 8. If any points have | δ | > 2.2σ for the final polynomial, eliminate these points and repeat step 7. Step 9. Calculate parameter a0 . Step 10. Apply the initial data selection described in step 2 to the high temperature data set. Step 11. Fit the selected high temperature data with the modified Guggenheim equation using least squares with weighting factors w . Step 12. The following procedure provides continuity at the boundary. Set equation (1.13) and its first derivative at Tb equal to the corresponding values from equation (1.12) at Tb. Eliminate parameters b3 and b4 from these two simultaneous equations to obtain a function containing parameters b1 and b2 which can be evaluated for the high temperature range using least squares. Do not use densities at temperatures within 2 K of the critical temperature. Step 13. Generate the output table of temperature, observed densities, estimated uncertainties, and difference between observed and calculated densities and arrange it in order of year of publication with authors. For data from a particular source, arrange in order of temperature. Step 14. Calculate the table of smoothed and recommended values with their corresponding estimated uncertainties. Coefficients A, B, C, D and E listed in the heading of Table 1 for each compound correspond to a0, a1, a2, a3 and a4 in equation (1.12) for temperatures below Tb. σ is the weighted standard deviation for individual points in this region (see the glossary). If the data set includes values above Tb, the coefficients A, B, C and D correspond to b1, b2, b3 and b4 in equation (1.13) for this range. The weighted standard deviation, σc,w, and the unweighted standard deviation for the fit, σc,uw, include both ranges. If the data set covers only values below Tb then σc,w and σc,uw represent that range only. The uncertainty in the smoothed values depends upon the uncertainties in the original observed values and upon the magnitude of deviations between observed and calculated values. To approximate the contribution of these two effects at the temperature T, the uncertainties u (T) for the low temperature range are calculated from: j

j

O

x

  u x (T ) = u(T ) 2 + ∑ ∑ Ckl (T k − T k )(T l − T l )  k l  

1/ 2

(1.14)

In this equation, u(T) represents the uncertainty of the observed data in the vicinity of T and is approximated by fitting a polynomial of order 1-3 to the estimated uncertainties as a function of

Landolt-Börnstein New Series IV/8E

8

1.4 Evaluation, Selection, and Smoothing of Data - 1.5 Calculation Procedures

temperature (other symbols appear in the glossary). Uncertainties in the smoothed data for the high temperature range are calculated using:

[

u x ( T ) = u x (Tb ) + h( T ) 2

−2

]

1/ 2

(1.15)

where u (Tb) is the uncertainty calculated using equation (1.14) for the low temperature range at the boundary temperature Tb and h(T) is a polynomial in temperature fit to the reciprocals of the estimated uncertainties in the high temperature region. The uncertainties in extrapolated data should increase as the extent of extrapolation increases. Since equation (1.15) does not always give this result, manual adjustment is sometime required in this range. x

1.4.4 Procedure for Selection and Smoothing of Density Values - Case 2 When the data set for a particular compound satisfies the criteria for Case 2, it is smoothed by a linear function of temperature,

ρ x = a 0 + a1T

(1.16)

The coefficient a1 is either calculated from two densities of sufficient accuracy reported at different temperatures, preferably by the same investigator, or estimated by examination of the coefficient of expansion of similar compounds obtained from a least squares calculation. The constant term then results from equation (1.17) after eliminating values with large uncertainties

(

)

a 0 = ∑ w j ρ j − a1Tj / ∑ w j

(1.17)

The uncertainties for the smoothed values are:

ux (T ) = [σ 20 + σ 12 (T − T ) 2 ]2

(1.18)

where T is the weighted mean temperature for the accepted set, σ 20 = ( Σw jδ 2j ) / Σw j and σ1 is the estimated standard deviation of a1 .

1.4.5 Procedure for Selection and Smoothing of Density Values - Case 3 The recommended density at a particular temperature is the weighted mean observed density for that temperature. The corresponding uncertainty is the standard deviation from the mean for each value.

1.5 Calculation Procedures 1.5.1 Least Squares Calculation Parameters of all the smoothing functions are adjusted to minimize the function

χ 2 = Σw jδ 2j

(1.19)

by the singular value decomposition of the matrix of independent variables of the function. The parameters are calculated by functions svdcmp and svbksb described in [88-pre/fla] modified to accept weighting factors. The covariance matrix used in equation (1.14) is calculated by the function covar from the same book.

Landolt-Börnstein New Series IV/8E

1.5 Calculation Procedures

9

1.5.2 Selection of Data Based upon Estimated Uncertainties The selection procedure is: Step 1. Obtain ∆T, the range of temperatures covered by the data set. Step 2. For each density value, ρ , in the set, calculate, j

(

x jl = exp q Tj − Tl

)

(1.20)

z1 = ∑ x jl

(1.21)

z2 = ∑ ul x jl

(1.22)

y = u j z11.5 z2−1

(1.23)

l≠ j

l≠ j

Accept point j if y ≤ d; reject it otherwise Step 3. Repeat steps 1 and 2 with points accepted in the first pass. The accepted points are those that remain from Step 3. The constants q and d are:

[

q = −2.628 g1 1 + ( ∆T / 30)

2

] / ∆T

d = g 2 / log 10 (1 + n) The number z2 / z1 is a weighted mean of all points in the set other than the j-th point. The weighting factor decreases exponentially with the difference in temperature of the l-th point from the j-th point. The parameter g1 determines the rate of decrease. This procedure compares the uncertainty of the j-th point to the weighted mean of other points. The parameter g2 determines the rejection level from this comparison for the j-th point. Larger values of g2 are less selective. Values for g1 and g2 are supplied to the algorithm. For all cases g1 is in the range of 1 to 2 (usually 1.8). The value of g2 is in the range of 2 to 3 (kg⋅m-3) (usually 2.5).

1.5.3 Count of the Effective Number of Density Values in a Set The number of degrees of freedom in a least squares fit is the number of distinct data values minus the number of adjustable parameters. To obtain a meaningful smoothing of data, the order of the polynomial function is limited to values which gives three or more degrees of freedom. However, if two or more density values in the set are at the same (or nearly the same) temperature, they should count as only one point in calculating the degrees of freedom. In general, the effective number of density values minus the number of fitting parameters is used as the degrees of freedom. Effective data values are those that are separated by at least 1.2 K.

1.5.4 Testing a Set of Deviations between Observed and Calculated Density Values for a Random Distribution One of the criteria for acceptance of the order of a polynomial least squares fit is that the deviations between calculated and random values be distributed “randomly” over the range of conditions covered by the data. The concept of randomness for this purpose probably cannot be defined rigorously. However, the following test for randomness is used whenever the original data set contains seven or more values.

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10

1.5 Calculation Procedures - 1.6 Glossary of Symbols

Step 1. Sort the values in order of increasing temperature Step 2. Separate the total range of temperature, ∆T, into s subranges each of size ∆T/s. Form s subsets of data corresponding to these temperature subranges. Step 3. Make the following comparison for each subset j which has at least four members. 0.01 <

Σδ j ns

and

0.2 <

Σδ j Σδ j

If both comparisons are true for any subset, the test for randomness fails. Step 4. Apply steps 2 and 3 to the data for s from 2 to an upper limit. The upper limit is determined by the number of values in the original set according to the following table.

n, number of values in original set 7 to 10 11 to 20 21 to 33 > 33

maximum number of subsets 2 3 4 5

1.6 Glossary of Symbols a b g 1, g 2 n ne n p s u w C T Tb Tc T

parameters in the polynomial function for densities at temperatures ≤ Tb k-th parameter in modified Guggenheim equation for density at temperatures >Tb parameters used in the data selection algorithm number of accepted values of density in a set effective number of accepted values of density in a set number of density values in subset s order of the polynomial for density values at temperatures ≤ Tb number of subsets in the random deviation algorithm uncertainty assigned to the j-th observed density value in a set weighting factor for the j-th density value in a set Element k,l of the variance-covariance matrix for the polynomial parameters absolute temperature boundary temperature critical temperature temperature for the j-th observed density

Tk

mean value of the T jk values in a set

T

T jk - T k , normalized value of the j-th temperature raised to the k power

δ θ ρ ρ(API) ρ ρo ρc

ρ -ρ (1 - T /Tc)1/3 density API specific gravity mean value of observed densities in a set

k k

s

j

j

k,l

j

n,j

j

j

j

x,j j

density of a standard substance critical density

Landolt-Börnstein New Series IV/8E

1.6 Glossary of Symbols - 1.7 Compound Nomenclature

ρ ρm ρ ρr ρ σ χ 2k

observed value of j-th density in a data set molar density ρ – ρ , normalized density for the j-th value

∆T

Tn – T1, range of temperatures for data in a set

j

n,j

x,j

11

j

relative density calculated value of the j-th density in a data set (χ2/n)1/2, standard deviation for density values in a set Σδ 2j for all values in a set fit to a polynomial of order k

The following symbols refer to components in a mixture at a fixed temperature c i vi wi xi Mi V Vi ρ ρi

number of components in the mixture component number partial specific volume of component i in the mixture mass fraction of component i in the mixture mole fraction of component i in the mixture molar mass (molecular weight) of component i molar volume of a mixture partial molal volume of component i in the mixture density of a mixture of components density of pure component i

Symbols used in the tables: A, B, C, D, E ρcalc ρexp σ

coefficients in function for density (see section 1.4.3) calculated density, ρ observed value of j-th density in a data set, ρ ( Σw j δ 2j / Σw j )1/ 2 , for low temperature range only

σc,w

( Σw j δ 2j / Σw j )1/ 2 , for low and high temperature range combined

σc,uw

[ Σδ 2j / n(n − p − 2)]1 / 2 , for low and high temperature range combined

2σest

estimated uncertainty, u

O

x

j

j

1.7 Compound Nomenclature 1.7.1 Names of Compounds Used in the Tables Compounds are systematically named in the density tables as alky (alkenyl, alkynyl, etc.) derivatives of benzene in the style <side chains>benzene. Side chains consist of one or more alkyl (alkenyl, alkynyl, etc.) radicals attached to the benzene ring. Thus names such as butyl, pentyl, heptyl refer to saturated straight chain radicals. Unsaturated side chains are named as radicals from the corresponding alkene, alkadiene, alkyne, etc. Examples are ethenyl, (1-propenyl), (2-butenyl), (2,3-pentadienyl), and (4-pentynyl). The numbers indicate the postion of the double and triple bonds. The names of branched side chains are enclosed in parenthesis with the position of the side chain shown by the preceding number. Examples are: (1-methylethyl), (same as isopropyl), (2-ethyl-3-methylbutyl).

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12

1.7 Compound Nomenclature

Branched unsaturated side chains are named similarly with a number preceding the base chain to specify the position of the double or triple bond. Thus (1,3-dimethyl-2-butenyl) indicates two methyl radicals attached to a butyl radical:

If there is more than one side chain on the benzene ring the name of each radical is preceded by the postion number on the ring. Examples are 1,3-dimethylbenzene and 1-ethyl-4-(1-methylethyl)benzene. Position numbers 1,2-, 1,3-, and 1,4- correspond to the designations ‘ortho’- (o-), ‘meta’- (m-) and ‘para’- (p-). Side chain names are ordered alphabetically within a compound name: butyl, diethyl, dimethyl, ethyl, methyl, methylene, (1-methylethyl), propyl, tetramethyl. Thus, 1-ethyl-4-methyl-2-propylbenzene is:

Simple multiple radicals are preceded by di, tri, tetra, etc. to indicate 2, 3, 4, ... such groups. Prefixes bis, tris, tetrakis, ... are used to indicate multiple complex side chains whose names are enclosed in parenthesis. Examples are 1,4-diethylbenzene and 1,2,4-tris(2-methylpropyl)benzene. Prefixes (Z)- and (E)- identify geometrical isomers that differ in the relative orientation of groups on either side of a double bond in a side chain. The IUPAC rules [93-ano-1] apply, thus (Z)-(1-methyl-2propenyl)benzene is:

In some cases the geometrical orientation is not identified in the original document. In most of such cases the sample is a mixture of isomers. If data is found only for unspecified geometrical isomers the recommendations are based on such data. However, if specific geometrical isomers are identified as well, both kinds of data are listed in separate tables. Then the recommendations are based on data for the specific isomers. Compounds that contain an asymmetric substitutions on a carbon atoms exist in enantiomorphic forms. These differ only in the direction of rotation of polarized light. When the absolute configuration has been identified in the original report, these compounds are identified by (R)- and (S)- prefixes. Sometimes prefixes such as d-, l-, (+)-, and (-)-, which are given in the original report have been used. Very often no identification of the optical isomer is given even when the compound contains an asymmetric carbon atom. Then it is assumed that the samples are racemic mixtures. However, none of these distinctions affect the densities of liquids, therefore all the isomers of this type are combined to determined the recommended values. If a compound contains more than one asymmetric carbon atom diastereomers can exist. In principle, these might have different densities, but no examples have been found. Derivatives of benzene can also be named as phenyl derivatives of alkanes, alkenes, alkadienes, alkynes, etc. Examples of these two types of names are shown below.

Landolt-Börnstein New Series IV/8E

1.7 Compound Nomenclature

<Side chain>benzene Name pentylbenzene (1-methylbutyl)benzene (1,3-dimethylbutyl)benzene 1-hexyl-3-methylbenzene (1-propenyl)benzene (2-propenyl)benzene (1-methylethenyl)benzene

13

Phenyl Derivative Name 1-phenylpentane 2-phenylpentane 2-methyl-4-phenylpentane 1-(3-methylphenyl)hexane 1-phenyl-1-propene 1-phenyl-2-propene 2-phenyl-1-propene

Some compounds are commonly known by trivial names. Examples follow. <Side chain>benzene Name methylbenzene 1,2-dimethylbenzene 1,3-dimethylbenzene 1,4-dimethylbenzene (1-methylethyl)benzene 1-methyl-4-(1-methylethyl)benzene 1,3,5-trimethylbenzene ethenylbenzene (1-methylethenyl)benzene (Z)-(1-propenyl)benzene (2-propenyl)benzene

Trivial Name toluene o-xylene m-xylene p-xylene cumene p-cymene mesitylene vinylbenzene or styrene α-methylstyrene cis-β-methylstyrene allylbenzene

Names of compounds in the name index include all those shown in the density tables. In addition, phenyl derivative names, other IUPAC systematic names, Chemical Abstracts indexing names and certain trivial or obsolete names are included. Registry Numbers assigned by Chemical Abstracts Service, and molecular weights are listed with the compound names in the density tables. A Registry Number index is also included. When a Registry Number assigned by Chemical Abstracts is not available a number is assigned by the Thermodynamcis Research Center. These numbers start at 50000-00-0 and continue upward.

1.7.2 Order of Compounds in the Tables Compounds in the tables are arranged in the following groups 1. 2. 3. 4. 5.

Alkyl benzenes, of formula type CnH2n-6 Alkenylbenzenes, of formula type CnH2n-8 Alkynyl- and Alkadienylbenzenes of formula type CnH2n-10 Benzenes with unsaturated side chains of formula type CnH2n-12 Benzenes with unsaturated side chains of formula type CnH2n-14

Within each of these groups the compounds are sorted by number of carbon atoms (n in formulas of type CnH2n-k). Isomers having the same molecular formula are sorted alphabetically by systematic name. .

Landolt-Börnstein New Series IV/8E

14

References

References 67-gug

Guggenheim, E. A.; Thermodynamics, 5th edition, North-Holland Publishing Company: Amsterdam (1957).

86-ros/bae

Rossiter, B. W.; Baetzold, R. C.; Physical Methods of Chemistry, 2nd edition, Vol. VI, Determination of Thermodynamic Properties, John Wiley & Sons: New York (1986) Press, W. H.; Flannery, B. P.; Teukolsky, S. A.; Vetterling, W. T.; Numerical Recipes in C, Cambridge Univ. Press: New York (1988). .

88-pre/fla

93-ano-1

Panico, R.; Powell, W. H.; Richer, J. C.; A Guide to IUPAC Nomenclature of Organic Compounds: Recommendation 1993, Blackwell Scientific Publications: Oxford (1993).

97-ash/ben

Ashcroft, S. J.; Ben Isa, M.; J. Chem. Eng. Data, 42 (1997) 1244.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

15

2 Tabulated Data on Density - Alkylbenzenes (CnH2n-6) 2.1 Alkylbenzenes (CnH2n-6), C6 - C10 Benzene

[71-43-2]

C6H6

MW = 78.11

1

Tc = 562.05 K [95-tso/amb] ρc = 305.0 kg·m-3 [95-tso/amb] Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 6.4169 · 10-1 (low temperature range), σc,w = (8.6525 · 10-1 combined temperature ranges, weighted), σc,uw = 1.2761 · 10-1 (combined temperature ranges, unweighted). O

T = 273.15 to 449.60 K T = 449.60 to 562.05 K ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] 3 1.11471 · 10 7.00111 · 10-1 -5 -2.46925 · 10 -1.41951 · 10-2 -3 -5.75335 · 10 1.27411 · 10-4 -5 1.41802 · 10 -4.09483 · 10-7 -8 -1.33393 · 10

Coefficient

A B C D E

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

90.15 194.15 264.55 273.15 278.15 283.15 293.15 303.15 313.15 323.15 333.15 343.15 353.15 353.52 273.15 273.15 1)

ρexp ± 2σ est kg ⋅ m−3

crystal 1101.0 ± 3.0 1062.0 ± 3.0 1023.5 ± 1.0 liquid 899.36 ± 0.20 894.71 ± 0.20 889.60 ± 0.20 878.99 ± 0.20 868.54 ± 0.20 857.63 ± 0.20 846.76 ± 0.20 835.82 ± 0.20 824.90 ± 0.20 813.65 ± 0.20 813.26 ± 0.20 900.06 ± 0.17 900.00 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

30-bil/fis-1 30-bil/fis-1 33-hen/jef -0.81 -0.18 0.01 -0.00 0.18 -0.05 -0.19 -0.32 -0.34 -0.58 -0.56 -0.11 -0.17

1883-fli(✕ ) 1883-fli(✕ ) 1883-fli1) 1883-fli1) 1883-fli1) 1883-fli1) 1883-fli1) 1883-fli(✕ ) 1883-fli(✕ ) 1883-fli(✕ ) 1883-fli(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ )

T K

281.75 287.65 291.15 291.15 303.15 313.15 323.15 333.15 343.15 353.15 363.15 373.15 383.15 393.15 403.15 413.15 423.15 433.15

ρexp ± 2σ est kg ⋅ m−3

890.47 ± 0.17 885.43 ± 0.17 881.18 ± 0.17 881.16 ± 0.20 868.51 ± 0.16 857.56 ± 0.16 846.60 ± 0.16 835.70 ± 0.15 824.81 ± 0.15 814.46 ± 0.15 804.12 ± 0.14 792.71 ± 0.14 780.88 ± 0.14 769.23 ± 0.14 756.77 ± 0.13 744.05 ± 0.13 730.99 ± 0.13 718.49 ± 0.12

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.61 0.60 0.06 0.04 0.15 -0.12 -0.35 -0.44 -0.43 0.23 1.05 0.97 0.67 0.80 0.40 0.06 -0.26 0.41

1889-you-1(✕ ) 1889-you-11) 1889-you-11) 1889-you-11) 1889-you-11) 1889-you-11) 1889-you-11) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ )

Not included in Fig. 1

cont.

Landolt-Börnstein New Series IV/8E

16

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Benzene (cont.) Table 2. (cont.) T K

443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 553.15 557.45 559.25 561.15 353.15 363.15 373.15 383.15 393.15 403.15 413.15 423.15 443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 548.15 553.15 561.65 273.15 283.15 286.65 288.15 288.95 289.35 1)

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

704.32 ± 0.12 -0.13 690.61 ± 0.12 0.37 675.77 ± 0.11 0.85 660.55 ± 0.11 1.81 643.25 ± 0.11 1.37 625.55 ± 0.10 1.28 606.54 ± 0.10 0.99 585.10 ± 0.09 0.04 560.95 ± 0.09 -0.83 532.77 ± 0.08 -1.33 498.43 ± 0.09 -0.80 451.39 ± 0.09 1.20 421.32 ± 0.11 2.90 407.81 ± 0.13 8.10 385.58 ± 0.18 17.02 812.70 ± 0.50 -1.53 804.20 ± 0.50 1.13 792.80 ± 0.50 1.06 781.00 ± 0.60 0.79 769.20 ± 0.60 0.77 756.80 ± 0.60 0.43 744.00 ± 0.60 0.01 731.00 ± 0.60 -0.25 704.30 ± 0.70 -0.15 690.60 ± 0.70 0.36 675.80 ± 0.70 0.88 661.00 ± 0.70 2.26 643.20 ± 0.70 1.32 625.60 ± 0.80 1.33 606.60 ± 0.80 1.05 585.20 ± 0.90 0.14 561.00 ± 0.90 -0.78 532.70 ± 0.90 -1.40 498.50 ± 1.00 -0.73 470.80 ± 1.00 -6.55 451.50 ± 2.00 1.31 304.30 ± 2.00 -48.84 899.94 ± 0.20 -0.23 889.43 ± 0.20 -0.16 885.76 ± 0.20 -0.13 884.18 ± 0.20 -0.12 883.34 ± 0.20 -0.11 882.91 ± 0.20 -0.11

1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-1(✕ ) 1889-you-11) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-31) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-31) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-3(✕ ) 1893-ram/shi-31) 1893-ram/shi-31) 26-tim/mar-1(✕ ) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11)

T K

289.50 290.35 291.10 291.55 292.65 293.15 293.15 293.35 294.15 298.15 298.15 298.40 301.95 303.15 306.05 306.66 308.10 273.15 288.10 303.25 319.10 333.85 352.85 373.15 303.15 293.15 298.15 293.15 298.15 310.23 323.20 333.26 343.35 353.25 378.80 379.40 382.15 382.55 384.70 386.90 389.35 390.20 394.00

ρexp ± 2σ est −3

kg ⋅ m

882.77 ± 0.20 881.88 ± 0.20 881.08 ± 0.20 880.61 ± 0.20 879.46 ± 0.20 878.93 ± 0.20 878.93 ± 0.20 878.72 ± 0.20 877.88 ± 0.20 873.67 ± 0.20 873.67 ± 0.20 873.41 ± 0.20 869.70 ± 0.20 868.42 ± 0.20 865.31 ± 0.20 864.64 ± 0.20 863.08 ± 0.20 899.90 ± 0.30 884.34 ± 0.30 868.28 ± 0.30 851.04 ± 0.30 834.96 ± 0.30 813.80 ± 0.30 790.30 ± 0.30 868.37 ± 0.05 879.01 ± 0.04 873.66 ± 0.04 879.08 ± 0.10 873.72 ± 0.10 859.98 ± 0.10 846.67 ± 0.10 835.64 ± 0.20 824.56 ± 0.20 813.60 ± 0.50 786.00 ± 0.30 785.80 ± 0.30 782.50 ± 0.30 783.10 ± 0.30 779.20 ± 0.30 776.40 ± 0.30 773.80 ± 0.30 772.60 ± 0.30 767.90 ± 0.30

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.10 -0.08 -0.09 -0.08 -0.06 -0.06 -0.06 -0.06 -0.05 -0.01 -0.01 -0.00 0.06 0.06 0.04 0.02 -0.00 -0.27 -0.01 0.03 -0.26 -0.42 -0.76 -1.44 0.01 0.02 -0.02 0.09 0.04 -0.83 -0.23 -0.38 -0.47 -0.52 0.75 1.24 1.13 2.20 0.80 0.58 0.86 0.67 0.48

26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 26-tim/mar-11) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas(✕ ) 43-woo/bru(∆) 46-for/gla( ) 46-for/gla( ) 59-how/pik1) 59-how/pik1) 59-how/pik(✕ ) 59-how/pik(✕ ) 59-how/pik(✕ ) 59-how/pik(✕ ) 59-how/pik1) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha1) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ )

{ {

Not included in Fig. 1

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

17

Table 2. (cont.) T K

395.95 398.95 400.00 401.85 404.95 405.70 411.30 413.00 419.40 420.75 425.40 428.05 433.50 436.75 443.60 444.65 450.70 451.65 456.35 458.85 463.15 467.65 469.55 477.30 484.10 493.10 501.20 508.40 515.80 526.00 535.40 540.90 545.95 550.35 553.15 557.20 559.80 560.30 561.55 561.65 298.15 293.15 298.15 303.15 310.00 1)

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

765.70 ± 0.30 0.62 761.80 ± 0.30 0.33 762.10 ± 0.30 1.90 758.60 ± 0.30 0.64 755.00 ± 0.30 0.83 753.90 ± 0.30 0.65 746.40 ± 0.30 0.09 744.10 ± 0.30 -0.08 737.10 ± 0.30 1.03 735.00 ± 0.30 0.66 729.00 ± 0.30 0.68 724.80 ± 0.30 -0.05 718.10 ± 0.30 0.49 713.60 ± 0.30 0.37 704.10 ± 0.30 0.27 702.00 ± 0.30 -0.36 693.20 ± 0.40 -0.61 691.90 ± 0.40 -0.53 685.00 ± 0.40 -0.45 681.20 ± 0.40 -0.44 674.60 ± 0.40 -0.32 667.00 ± 0.40 -0.73 664.70 ± 0.40 0.05 657.10 ± 0.40 5.28 640.80 ± 0.40 0.56 625.70 ± 0.40 1.34 610.00 ± 0.40 0.69 596.00 ± 0.50 0.93 579.00 ± 0.50 -0.22 552.10 ± 0.50 -2.33 524.40 ± 0.50 -2.63 507.00 ± 0.50 -0.94 486.80 ± 0.50 -0.67 466.00 ± 0.50 -0.24 450.80 ± 1.00 0.61 419.90 ± 1.00 -0.75 384.40 ± 1.50 -8.19 373.70 ± 2.00 -11.44 336.00 ± 3.00 -20.94 262.50 ± 3.50 -90.64 873.65 ± 0.06 -0.03 878.90 ± 0.10 -0.09 873.60 ± 0.10 -0.08 868.29 ± 0.10 -0.07 860.90 ± 0.10 -0.15

68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha1) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha(✕ ) 68-cam/cha1) 68-cam/cha1) 70-sto/lev(◆) 72-hal/tow1) 72-hal/tow1) 72-hal/tow1) 72-hal/tow(✕ )

T K

320.00 340.00 360.00 363.15 380.00 390.00 410.00 423.15 430.00 450.00 470.00 480.00 490.00 281.25 285.87 286.86 288.37 289.42 290.22 291.25 293.68 294.70 298.61 299.46 302.65 303.50 307.40 307.88 311.23 312.16 315.33 316.28 320.27 320.96 298.15 308.15 318.15 333.15 298.15 308.15 318.15 333.15 298.15 308.15 318.15

ρexp ± 2σ est −3

kg ⋅ m

850.08 ± 0.10 828.24 ± 0.10 805.85 ± 0.11 802.24 ± 0.11 782.79 ± 0.11 770.93 ± 0.11 746.40 ± 0.11 729.54 ± 0.11 720.74 ± 0.11 692.68 ± 0.12 662.36 ± 0.12 645.94 ± 0.12 628.49 ± 0.14 891.46 ± 0.10 886.61 ± 0.10 885.57 ± 0.10 883.96 ± 0.10 882.86 ± 0.10 882.06 ± 0.10 880.96 ± 0.10 878.41 ± 0.10 877.34 ± 0.10 873.19 ± 0.10 872.28 ± 0.10 868.96 ± 0.10 868.08 ± 0.10 863.98 ± 0.10 863.48 ± 0.10 859.98 ± 0.10 859.00 ± 0.10 855.65 ± 0.10 854.66 ± 0.10 850.42 ± 0.10 849.69 ± 0.10 873.67 ± 0.20 862.96 ± 0.20 852.20 ± 0.20 835.94 ± 0.20 873.67 ± 0.20 862.96 ± 0.20 852.20 ± 0.20 835.94 ± 0.20 873.67 ± 0.10 862.96 ± 0.15 852.20 ± 0.15

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.26 -0.45 -0.75 -0.83 -1.07 -1.24 -1.53 -1.71 -1.54 -2.13 -1.55 -1.32 -1.42 -0.15 -0.10 -0.09 -0.10 -0.09 -0.04 -0.05 -0.02 -0.01 -0.00 -0.01 0.07 0.09 0.15 0.16 0.24 0.26 0.30 0.33 0.37 0.38 -0.01 -0.07 -0.12 -0.20 -0.01 -0.07 -0.12 -0.20 -0.01 -0.07 -0.12

72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow1) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis1) 72-rei/eis1) 72-rei/eis1) 72-rei/eis1) 72-rei/eis1) 72-rei/eis1) 72-rei/eis1) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 72-rei/eis(✕ ) 78-dia/tar1) 78-dia/tar1) 78-dia/tar1) 78-dia/tar(✕ ) 80-aic/tar-11) 80-aic/tar-11) 80-aic/tar-11) 80-aic/tar-1(✕ ) 81-aic/tar-11) 81-aic/tar-11) 81-aic/tar-11)

Not included in Fig. 1

cont. Landolt-Börnstein New Series IV/8E

18

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Benzene (cont.) Table 2. (cont.) T K

333.15 293.15 298.15 303.15 298.15 323.81 348.38 373.35 398.43 423.59 283.13 288.12 293.15 298.16 303.28 1)

ρexp ± 2σ est −3

kg ⋅ m

835.94 ± 0.15 878.99 ± 0.05 873.64 ± 0.05 868.29 ± 0.05 873.67 ± 0.02 846.01 ± 0.10 818.37 ± 0.10 791.84 ± 0.10 760.87 ± 0.15 729.01 ± 0.15 889.64 ± 0.20 884.38 ± 0.20 879.10 ± 0.20 873.77 ± 0.20 868.23 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.20 -0.00 -0.04 -0.07 -0.01 -0.23 -1.13 0.33 -1.23 -1.67 0.02 0.05 0.11 0.10 0.01

81-aic/tar-1(✕ ) 85-tam/mur(∇) 85-tam/mur(∇) 85-tam/mur(∇) 87-aka/oga( ) 88-ste/arc(✕ ) 88-ste/arc(✕ ) 88-ste/arc(✕ ) 88-ste/arc(✕ ) 88-ste/arc1) 88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-11)

…

T K

308.17 313.30 318.19 323.17 328.17 333.16 298.15 303.15 313.15 333.15 373.15 393.15 413.15 433.15 453.15

ρexp ± 2σ est −3

kg ⋅ m

863.04 ± 0.20 857.37 ± 0.20 852.13 ± 0.20 846.66 ± 0.20 841.40 ± 0.20 835.81 ± 0.20 873.70 ± 0.30 868.30 ± 0.30 858.10 ± 0.30 835.80 ± 0.30 792.60 ± 0.30 768.50 ± 0.30 743.70 ± 0.40 718.80 ± 0.40 691.20 ± 0.50

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.03 -0.15 -0.15 -0.27 -0.14 -0.32 0.02 -0.06 0.42 -0.34 0.86 0.07 -0.29 0.72 0.96

88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-11) 88-sun/sch-1(✕ ) 88-sun/sch-1(✕ ) 93-beg/tuk1) 93-beg/tuk1) 93-beg/tuk1) 93-beg/tuk1) 93-beg/tuk(✕ ) 93-beg/tuk(✕ ) 93-beg/tuk1) 93-beg/tuk1) 93-beg/tuk(✕ )

Not included in Fig. 1

Further references: [1873-adr, 1873-mye, 1873-pis/pat, 1880-jan, 1884-gla, 1887-neu, 1887-tim, 1888kno, 1888-wee, 1890-gar, 1891-fer, 1891-gla, 1891-sch/kos, 1892-lan/jah, 1896-per, 1898-kah, 02-pat, 04-dun, 05-chr, 07-dun/tho, 07-lum, 08-dun/stu, 08-liv/mor, 09-fin, 10-mil/mac, 10-tyr, 11-liv/mor, 11-tyr, 12-fau, 13-dun/hil, 13-fle/tyr, 13-muc, 14-kre/mei, 15-ric/coo, 16-ric/shi, 19-von, 19-was/rea, 20-bou, 20dar, 20-got, 21-ric/bar, 22-par/tho, 24-kal, 24-kur, 24-mil, 24-ric/spe, 25-lew, 25-ric/cha, 25-yaj/bha, 26des, 26-par/rul, 27-gru, 28-est, 28-nor/pre, 29-pre, 29-pus/pin, 29-smy/sto, 29-wei/san, 30-mor/low, 30tau/sta, 30-zma, 31-gra/hey, 31-tre/spe, 32-gar/eva, 32-mar/col, 33-azi/bha, 33-bar/cas, 33-glo/lyn, 33mor, 34-all/hib, 34-war/ful, 35-ear/gla, 35-ols/was, 35-pes, 36-erl/lob, 36-ing/rai, 36-ipa/cor, 36-kir/skv, 36-kli/lan, 36-mcl/ada, 36-sha/ost, 37-bue/gar, 37-coh/bui, 37-loz/dya, 37-mul, 37-woj, 38-ols/was, 39bow/but, 42-gei, 42-sch, 42-tra/was, 43-bis/wal, 43-gri/lud, 44-ano, 44-sch, 46-gei/can, 46-gib/tho, 46mil/ang, 46-sca/woo, 47-leg, 47-rog, 48-jon/bow, 48-wil/ros, 49-den/fid, 49-foe/fen, 49-for/ros, 49-wei, 50-ber/wei, 50-cur/est, 50-lar/ver, 50-spu/zei, 50-tei/gor, 51-ano, 52-kip/tes, 52-vog/cre, 53-mat-1, 53mcc/jon, 53-tre, 54-bro/smi, 54-dix/sch, 54-gar/ell, 54-gri/jes, 54-san/lyo, 54-smi/otv, 55-bro/smi, 55cut/jon, 55-fle/sau, 55-ham/sto, 55-kus, 56-con, 56-mcg/win, 56-moo/sty, 56-woo/san, 57-pit/pet, 57pri/hun, 58-afe, 58-how/ham, 58-lin/van, 58-wag/web, 59-fre/hut, 59-nie/web, 60-fro/shr, 60-oak/web, 60wei/woo, 61-bel/web, 61-nyv/erd, 62-bro/smi-1, 62-kae/web, 62-sus/lyz, 63-fis, 63-pod, 63-raj/ran, 65bus/bal, 65-des/pan, 65-for/moo, 65-wat/mcl, 66-kat/cha, 66-lut/kov, 66-sab/bel, 66-sch/ran, 67-dei, 67fin/ken, 67-her/bre, 67-mur/sri, 67-nat/rao, 67-rid/but, 67-roz, 67-seu/mor, 67-sum/tho, 68-bar/sat, 68des/bha, 68-kem/buc, 68-pow/swi, 68-sum/tho, 69-bro/foc, 69-cho/nai, 69-rod/hsu, 70-hal, 70-har/dun, 70-hlo/hal, 70-kon/lya, 70-kor/sha, 70-mye/cle, 70-nag, 71-des/bha, 71-her/bre, 71-hyd/sub, 71-let/bay, 71-nag/oht, 71-san/fel, 71-tam/pau, 72-bon/pik, 72-kud/kir, 72-len/hip, 72-li /won, 72-mar/mur, 73chi/hou, 73-gra/ker, 73-rao/vis, 73-li /lu, 73-mit/guh, 73-nag/oht, 73-sub/kon, 73-svo/ves, 74-lie/mis, 74mye/cle, 75-dia/nun, 75-gro/ben, 75-hsu/cle, 75-let, 75-mil/wac, 75-mus/ver, 75-ter, 75-tri/ass, 76-abs/tut, 76-for/ben, 76-ha /mor, 76-sav/sim, 76-tej/ric, 77-gov/and-1, 77-hwa/rob, 77-rad/tas, 78-kiy/hal, 78nat/yad, 78-nit/fuj, 78-vol/giu, 79-coc/pis, 79-goa/ott, 79-gro, 79-kim/tak, 79-kri/sre, 79-mah/sur, 79mal/pat, 79-mur-2, 79-pat/sun, 79-sin/siv, 80-edu/boy, 80-oht/nag] cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

19

ρ

ρ

Further references: (cont.) [82-80-pit/sur, 80-pra/vis, 80-sid/goe, 81-asf/dul, 81-dym/you, 81-gro, 81-mal/rae, 81-nai/nai, 81-oht/koy, ami/pat, 82-chy/str, 82-dig/jad, 82-gme, 82-gri/phi, 82-nat/nar, 82-rub/ren, 82-tak/tan, 83-alb/edg, 83gop/rao, 83-gri/phi, 83-mon, 83-nat/tri, 84-bau/mee, 84-sin/nig, 84-tan/tak, 85-alm/aww, 85-mar/bha, 85nag, 85-ogi/ara, 85-osw/rao, 85-sae/com, 85-sin/mah, 85-sin/sha, 85-tri/rod, 86-aww/ala, 86-cod/mon, 86gou/tom, 86-kar, 86-kas/kna, 86-pan/jan, 86-red, 86-san/sha, 86-tar/aic, 86-tar/dia, 86-tar/dia-1, 87-ami, 87-dah/dag, 87-lin, 87-man/ami, 87-nag, 87-nag/rob, 87-rao/ver, 87-shi/oga, 87-tan, 87-yad/yad, 88aww/all, 88-aww/sal, 88-cha/sur, 88-dah/sin-1, 88-gar/cob-1, 88-jun/tar, 88-nag, 88-shi/oga, 89-der/poi, 89-kou/pan, 89-lai/rod, 89-nar/swa, 89-pan/shu, 89-rai/shu, 89-raj/ren, 89-sch/ake, 90-all/bee, 90-che/pet, 90-dut/kah, 90-ser/sil, 91-gro/rou, 91-kna/skj, 91-pap/eva, 91-ram/muk, 91-she/wan, 91-wil/jim, 92gup/nan, 92-qin/hof, 92-wei/wil, 93-hai/guo, 94-sha/sin, 94-sin/kal, 95-art/mun, 95-beg/tuk, 95-hai/cha, 95-org/igl, 95-osw/pat, 95-pet/gas, 96-auc/mon, 1880-bru-3, 1883-sch-3, 1884-sch-6, 1896-1, 10-bir-1, 10-you-1, 11-wal-2, 13-von-3, 14-tyr, 14-tyr-1, 18-sam-1, 19-cha/sim-2, 19-her-1, 20-mey/myl, 25-mac-3, 26-bar-1, 36-ber/wei-1, 36-woj-3, 41-ano-1, 43-ano-2, 47-rog-1, 47-rog-2, 49-few/smi-2, 56-tor-2, 62nag-2, 62-nag-3, 63-man/she-1, 63-pra/van-1, 65-shr/pec-1, 66-sub/rao-1, 71-len/hay-1, 71-len/hay-2, 71shl-1, 72-let, 72-let-1, 73-paz-4, 73-paz-5, 73-paz-6, 73-paz-7, 73-paz-8, 78-dia/cre-1, 81-dym/rob-1, 81gro-5, 85-nag-1, 85-nag-2, 85-nag-3, 85-ort-1, 86-ort/paz-1, 87-ara/rub-1, 88-rat-1, 88-ste/arc, 88-sub/rao1, 90-jos/ami-1, 92-qin/hof-1, 95-art/mun-2, 95-art/mun-3, 95-hai/min-1].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

20

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Benzene (cont.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00 350.00

ρ ± σ fit kg ⋅ m−3

T K

903.50 ± 0.10 892.93 ± 0.10 882.34 ± 0.11 878.99 ± 0.11 873.68 ± 0.12 871.71 ± 0.12 861.05 ± 0.13 850.34 ± 0.14 839.56 ± 0.15 828.69 ± 0.16 817.71 ± 0.17

Methylbenzene

360.00 370.00 380.00 390.00 400.00 410.00 420.00 430.00 440.00 450.00 460.00

ρ ± σ fit kg ⋅ m−3

T K

806.60 ± 0.18 795.33 ± 0.19 783.86 ± 0.20 772.17 ± 0.21 760.20 ± 0.22 747.93 ± 0.23 735.31 ± 0.25 722.28 ± 0.26 708.80 ± 0.27 694.81 ± 0.40 679.86 ± 0.38

[108-88-3]

470.00 480.00 490.00 500.00 510.00 520.00 530.00 540.00 550.00 560.00

C7H8

ρ ± σ fit kg ⋅ m−3 663.91 ± 0.36 647.26 ± 0.36 629.91 ± 0.35 611.60 ± 0.35 591.76 ± 0.35 569.50 ± 0.36 543.43 ± 0.36 511.26 ± 0.38 468.08 ± 0.39 389.75 ± 0.43

MW = 92.14

2

Tc = 591.75 K [95-tso/amb] ρ c = 292.00 kg·m-3 [95-tso/amb]

Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 6.4673 · 10-1 (low temperature range), σc,w = (1.4811 · 10-1 combined temperature ranges, weighted), σc,uw = 8.1016 · 10-2 (combined temperature ranges, unweighted). O

Coefficient

A B C D

T = 178.05 to 473.40 K T = 473.40 to 591.75 K ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] 3 1.18621 · 10 7.29255 · 10-1 -1.47573 -1.57252 · 10-2 -3 2.08566 · 10 1.57707 · 10-4 -6 -2.61945 · 10 -5.50177 · 10-7

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

21

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

283.85 363.50 273.15 298.15 323.15 348.15 183.88 193.74 202.77 210.42 220.65 230.66 237.98 244.90 253.55 259.29 261.45 273.15 178.05 189.55 209.65 227.95 250.25 273.15 288.05 307.65 319.25 319.55 329.55 353.15 373.40 400.00 293.15 298.15 343.15 353.15 363.15 373.15 383.15 393.15 403.15 413.15 423.15 433.15 1)

ρexp ± 2σ est −3

kg ⋅ m

875.30 ± 0.20 799.47 ± 0.30 884.46 ± 0.15 859.90 ± 0.30 838.20 ± 0.30 815.40 ± 0.30 969.26 ± 2.00 959.84 ± 2.00 951.30 ± 2.00 943.91 ± 1.50 934.21 ± 1.50 924.89 ± 1.50 918.23 ± 1.00 911.68 ± 1.00 903.66 ± 1.00 898.28 ± 1.00 896.16 ± 1.00 884.16 ± 1.00 975.42 ± 4.00 964.60 ± 4.00 944.65 ± 2.00 927.16 ± 1.00 906.63 ± 0.50 885.43 ± 0.50 871.53 ± 0.50 853.36 ± 0.50 842.63 ± 0.50 842.48 ± 0.50 832.78 ± 0.50 810.15 ± 0.50 789.61 ± 0.50 762.15 ± 0.50 866.81 ± 0.05 862.17 ± 0.05 822.90 ± 2.00 812.80 ± 2.00 802.90 ± 2.00 792.60 ± 2.00 782.90 ± 2.00 772.00 ± 2.00 760.20 ± 2.00 748.50 ± 2.00 734.10 ± 2.00 725.40 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.16 -0.08 -0.88 -2.29 -0.53 0.71 0.18 0.30 0.41 0.28 0.22 0.26 0.40 0.26 0.24 0.16 0.03 -1.18 0.63 1.02 0.30 -0.00 0.16 0.09 -0.04 0.03 0.21 0.34 0.14 0.35 0.02 0.17 -0.03 -0.02 3.34 3.00 3.00 2.75 3.27 2.78 1.59 0.71 -2.63 -0.03

1892-per-11) 1892-per-1(✕ ) 12-tim(✕ ) 14-her1) 14-her1) 14-her(✕ ) 31-ton/ueh-1(✕ ) 31-ton/ueh-1(✕ ) 31-ton/ueh-1(✕ ) 31-ton/ueh-1(✕ ) 31-ton/ueh-1(✕ ) 31-ton/ueh-11) 31-ton/ueh-11) 31-ton/ueh-11) 31-ton/ueh-11) 31-ton/ueh-11) 31-ton/ueh-11) 31-ton/ueh-11) 36-mas(✕ ) 36-mas1) 36-mas(✕ ) 36-mas(✕ ) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas(✕ ) 36-mas(✕ ) 46-for/gla(∆) 46-for/gla1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra1) 57-fra(✕ )

T K

443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 553.15 563.15 573.15 583.15 301.15 313.15 323.15 333.15 343.15 353.15 363.15 298.15 303.15 308.15 313.15 293.15 298.15 303.15 320.00 340.00 360.00 370.00 390.00 410.00 430.00 450.00 470.00 480.00 490.00 298.15 308.15 318.15 333.15

ρexp ± 2σ est −3

kg ⋅ m

713.60 ± 2.00 701.20 ± 2.00 688.10 ± 2.00 674.60 ± 2.00 661.50 ± 2.00 647.10 ± 2.00 633.10 ± 2.00 616.80 ± 2.00 598.10 ± 2.00 577.50 ± 2.00 556.20 ± 2.00 533.00 ± 2.00 506.90 ± 2.00 473.50 ± 2.00 454.80 ± 2.00 859.49 ± 0.20 848.01 ± 0.20 838.49 ± 0.20 829.11 ± 0.20 819.46 ± 0.20 809.69 ± 0.20 799.83 ± 0.20 862.13 ± 0.10 857.53 ± 0.10 853.05 ± 0.10 848.34 ± 0.10 866.83 ± 0.10 862.19 ± 0.10 857.54 ± 0.10 841.71 ± 0.10 822.56 ± 0.10 803.01 ± 0.11 793.08 ± 0.11 772.67 ± 0.11 751.42 ± 0.11 729.16 ± 0.11 705.62 ± 0.12 680.42 ± 0.12 666.99 ± 0.12 652.99 ± 0.14 861.89 ± 0.15 852.58 ± 0.15 843.18 ± 0.15 828.95 ± 0.15

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.26 -0.81 -1.77 -2.82 -2.02 -0.58 2.36 3.60 2.93 1.06 -0.20 -1.02 -0.76 -0.95 27.43 0.09 -0.16 -0.24 -0.09 -0.10 -0.11 -0.07 -0.06 -0.01 0.19 0.17 -0.01 -0.00 0.00 -0.00 -0.05 -0.02 0.05 0.15 0.20 0.14 -0.16 -0.96 -1.17 0.17 -0.30 -0.28 -0.28 -0.25

57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 67-pre/fel1) 67-pre/fel1) 67-pre/fel(✕ ) 67-pre/fel(✕ ) 67-pre/fel(✕ ) 67-pre/fel(✕ ) 67-pre/fel(✕ ) 71-kat/lob1) 71-kat/lob1) 71-kat/lob1) 71-kat/lob(◆) 72-hal/tow1) 72-hal/tow1) 72-hal/tow1) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow1) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 81-aic/tar-11) 81-aic/tar-11) 81-aic/tar-1(✕ ) 81-aic/tar-1(✕ )

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

22

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Methylbenzene (cont.) Table 2. (cont.) T K

293.15 298.15 303.15 293.15 243.12 243.13 243.13 248.13 248.14 248.14 252.33 252.34 253.12 258.13 258.14 258.14 263.11 263.11 263.11 263.11 268.12 268.12 268.12 273.16 273.16 273.16 1)

ρexp ± 2σ est −3

kg ⋅ m

866.86 ± 0.05 862.22 ± 0.05 857.55 ± 0.05 866.86 ± 0.05 913.06 ± 0.08 913.05 ± 0.08 913.05 ± 0.08 908.43 ± 0.08 908.43 ± 0.08 908.43 ± 0.08 904.57 ± 0.08 904.55 ± 0.08 903.84 ± 0.08 899.21 ± 0.08 899.21 ± 0.08 899.21 ± 0.08 894.61 ± 0.08 894.62 ± 0.08 894.62 ± 0.08 894.62 ± 0.08 890.02 ± 0.08 890.02 ± 0.08 890.02 ± 0.08 885.36 ± 0.08 885.37 ± 0.08 885.37 ± 0.08

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 0.03 0.01 0.02 -0.00 -0.00 -0.00 0.00 0.01 0.01 0.02 0.01 0.02 0.02 0.03 0.03 0.01 0.02 0.02 0.02 0.04 0.04 0.04 0.03 0.04 0.04

… …

85-tam/mur( ) 85-tam/mur1) 85-tam/mur( ) 88-ano( ) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇)

{

T K

278.14 278.15 278.15 283.14 283.14 283.15 283.15 288.15 288.15 288.16 293.10 293.15 293.15 298.14 298.15 298.15 303.14 303.15 303.15 308.10 308.15 308.15 313.08 313.08 313.08

ρexp ± 2σ est −3

kg ⋅ m

880.76 ± 0.08 880.75 ± 0.08 880.76 ± 0.08 876.13 ± 0.08 876.13 ± 0.08 876.13 ± 0.08 876.13 ± 0.08 871.49 ± 0.08 871.49 ± 0.08 871.49 ± 0.08 866.85 ± 0.08 866.85 ± 0.08 866.85 ± 0.08 862.20 ± 0.08 862.20 ± 0.08 862.20 ± 0.08 857.53 ± 0.08 857.53 ± 0.08 857.53 ± 0.08 852.85 ± 0.08 852.84 ± 0.08 852.85 ± 0.08 848.21 ± 0.08 848.21 ± 0.08 848.21 ± 0.08

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.03 0.02 0.03 0.02 0.02 0.03 0.03 0.01 0.01 0.02 -0.04 0.01 0.01 -0.00 0.01 0.01 -0.01 -0.01 -0.01 -0.06 -0.02 -0.01 -0.02 -0.02 -0.02

92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-3(∇) 92-ano-3(∇) 92-ano-3(∇)

Not included in Fig. 1.

Further references: [1880-bru-3, 1881-nac/pag, 1882-nac/pag, 1883-sch-3, 1884-gla, 1884-sch-6, 1887neg, 1887-neu, 1891-gla, 1891-sch/kos, 1892-lan/jah, 1894-jah/mol, 1895-lin, 1896-lin-1, 1896-per, 1898-kah, 02-pat, 06-bla/cou, 07-lum, 09-bir, 10-bir, 10-daw, 10-tim, 10-tyr, 12-mor/dag, 12-ric/stu, 12wal/swi, 13-dun/hil, 14-kre/mei, 14-kre/mei-2, 14-sch, 14-tyr, 14-tyr-1, 14-wus/foe, 15-ric/coo, 16-ric/shi, 19-cha/sim-2, 19-kai, 19-von, 22-dri/fir, 23-tim/van, 24-bus-1, 24-gru, 24-mil, 25-lew, 26-bri, 26-des, 26mat, 26-tim/mar-1, 26-woo, 27-gru, 28-dam, 29-don, 29-pus/pin, 29-sch-4, 30-how/nas, 30-tau/sta, 30zma, 30-zma-1, 31-dec-1, 31-nes/dar, 32-gar/eva, 33-azi/bha, 33-bar/cas, 33-bri/dum, 33-bro/qui, 33-mor, 34-lai/sza, 34-war/ful, 35-bra/fel, 35-iva/sav, 35-swi/ram, 36-cow/par, 36-mas/was, 36-smi/woj, 37bue/gar, 37-loz/dya, 37-mas/was, 39-gro/wac, 39-mas/pax, 39-was/beg, 41-ano-1, 42-gei, 42-sch, 42tra/was, 42-zei/sch, 43-ano, 43-ano-2, 43-pla, 44-can, 44-sch, 46-ber/bon, 46-gei/can, 46-gib/tho, 48-vog6, 49-den/fid, 49-foe/fen, 49-for/ros, 49-gel/mar, 49-kre/wie, 49-til/pes, 50-ber/wei, 50-tei/gor, 53-par/cha, 53-tre, 54-dur/gla, 54-gri/jes, 55-bak, 55-bor/pep, 55-cut/jon, 55-gar/hal, 55-ham/sto, 55-web, 56-ano-5, 56-baw/hil, 56-tor-2, 57-mur/las, 58-hol/len, 58-lin/van, 59-yen/ree, 60-fro/shr, 60-ter/kep, 61-del, 61-fin, 61-shi/hil, 63-fis, 63-man/she] cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

23

ρ

ρ

Further references: (cont.) [65-red/rao, 65-shr/pec-1, 65-wat/mcl, 66-hey/sch, 66-lin/ste, 67-han/hac, 67-roz, 67-seu/mor, 67-sum/tho, 68-des/bha, 68-eva/lin, 68-ski/cus, 68-sum/tho, 69-rod/hsu, 70-kon/lya, 70-mye/cle, 71-des/bha, 71san/fel, 71-shl-1, 72-cur/fel, 72-let, 72-li /won, 73-chi/hou, 73-mit/guh, 73-san/hut, 74-jai/nor, 74-kon/ani, 74-mye/cle, 75-hol/zie, 75-hsu/cle, 75-mil/wac, 75-mus/ver, 75-tri/raj, 76-bul/pro, 76-ezh/gol, 76-for/ben1, 76-haf/har, 76-isl/war, 76-rad/han, 76-sav/sim, 76-sun/vis, 78-vol/giu, 79-ern/gli, 79-gro-1, 79-gro-2, 79-kri/sre, 79-mur-3, 79-mye/her, 79-sin/siv, 79-sub/rao, 80-kat/wat, 80-lau/ric, 80-pit/sur, 80-pra/vis, 80rao/sur-1, 80-ric/tej, 81-asf/dul, 81-gro-1, 81-gro-6, 82-ami/pat-1, 82-gar/tar, 82-nat/nar, 82-sin/sin, 83gop/rao, 83-mon, 83-nat/tri, 84-bau/mee, 84-sin/nig, 85-alm/aww, 85-les/eic, 85-mar/bha, 85-nat/vis, 85ogi/ara, 85-sin/mah, 85-sin/sha, 85-sin/sin, 85-sin/sin-1, 85-tak/ter-1, 86-cra, 86-kar, 86-kas/kna, 86nau/wag, 86-red, 86-rit/pap, 86-sae/com, 86-sin/sin, 86-tar/aic, 86-tar/dia-1, 87-dah/dag, 87-shi/oga, 88aww/sal, 88-cha/sur, 88-dah/sin-1, 88-fer/lap, 88-gar/cob-1, 88-pau/kru-1, 88-shi/oga, 88-sub/rao-1, 89mam/pan, 89-rai/shu, 89-ram/sur, 89-sin/sin, 90-all/bee, 90-asf/sid-1, 90-che/pet, 90-fer/lap, 90-mal/rao, 91-aiz/kat, 91-ric/lau, 91-wil/jim, 92-qin/hof, 92-qin/hof-1, 92-yos/kat, 93-hai/guo, 94-sha/sin, 94-sin/kal, 95-hai/cha, 95-hai/min-1, 95-pet/gas, 95-ram/rao].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

24

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Methylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

170.00 180.00 190.00 200.00 210.00 220.00 230.00 240.00 250.00 260.00 270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

T K

982.74 ± 3.60 972.87 ± 2.98 963.14 ± 2.42 953.53 ± 1.93 944.02 ± 1.51 934.60 ± 1.14 925.25 ± 0.82 915.95 ± 0.56 906.70 ± 0.35 897.47 ± 0.18 888.25 ± 0.05 879.02 ± 0.05 869.76 ± 0.05 866.84 ± 0.05 862.19 ± 0.05

1,2-Dimethylbenzene

300.00 310.00 320.00 330.00 340.00 350.00 360.00 370.00 380.00 390.00 400.00 410.00 420.00 430.00 440.00

ρ ± σ fit kg ⋅ m−3

T K

860.47 ± 0.05 851.13 ± 0.05 841.71 ± 0.05 832.21 ± 0.05 822.61 ± 0.09 812.89 ± 0.19 803.03 ± 0.30 793.03 ± 0.42 782.86 ± 0.55 772.52 ± 0.69 761.98 ± 0.82 751.22 ± 0.96 740.24 ± 1.09 729.02 ± 1.21 717.53 ± 1.32

[95-47-6]

450.00 460.00 470.00 480.00 490.00 500.00 510.00 520.00 530.00 540.00 550.00 560.00 570.00 580.00 590.00

C8H10

ρ ± σ fit kg ⋅ m−3 705.78 ± 1.41 693.73 ± 1.49 681.38 ± 1.55 668.16 ± 1.58 652.82 ± 1.60 636.16 ± 1.68 618.78 ± 2.22 600.91 ± 6.59 582.45 ± 7.50 562.91 ± 5.07 541.41 ± 2.61 516.53 ± 2.07 485.92 ± 1.95 444.61 ± 2.10 367.54 ± 6.29

MW = 106.17

3

Tc = 630.30 K [95-tso/amb] ρc = 287.00 kg·m-3 [95-tso/amb] Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 3.7858 · 10-1 (low temperature range), σc,w = (2.9728 · 10-1 combined temperature ranges, weighted), σc,uw = 1.2865 · 10-1 (combined temperature ranges, unweighted). O

Coefficient

A B A B C D E

T = 250.20 to 502.00 K T = 502.00 to 630.30 K ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] crystal 1.1178 · 103 -4.0 · 10-1 liquid 1.05174 · 103 1.03412 -1.60308 · 10-5 -2.16363 · 10-2 -3.74223 · 10-3 1.92797 · 10-4 -6 7.97764 · 10 -5.90553 · 10-7 -9 -6.92785 · 10

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

25

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

248.0 205.0 214.0 221.0 232.0 233.0 238.0 243.0 245.0 253.15 263.15 273.15 283.15 293.15 303.15 313.15 323.15 333.15 343.15 353.15 363.15 373.15 383.15 393.15 403.15 250.20 273.15 288.15 302.85 319.55 333.62 352.60 379.20 399.15 428.05 293.15 298.15 293.15 298.15 303.15 273.15 288.15 303.15 1)

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

crystal 990.4 ± 0.6 -28.2 1036.0 ±3.6 0.2 1033.0 ±3.6 0.8 1030.0 ±3.6 0.6 1025.0 ±3.6 0.0 1024.0 ±3.6 -0.6 1022.0 ±3.5 -0.6 1020.0 ±3.5 -0.6 1020.0 ±3.5 0.2 liquid 912.40 ± 0.50 -0.49 904.00 ± 0.50 -0.75 895.50 ± 0.50 -1.05 887.20 ± 0.50 -1.08 879.30 ± 0.50 -0.66 870.60 ± 0.50 -0.97 862.30 ± 0.50 -0.82 854.10 ± 0.50 -0.51 845.80 ± 0.50 -0.23 837.60 ± 0.50 0.23 829.60 ± 0.50 0.97 821.60 ± 0.50 1.81 813.20 ± 0.50 2.35 804.80 ± 0.50 3.02 796.60 ± 0.50 4.02 786.60 ± 0.50 3.37 915.93 ± 0.30 0.65 896.90 ± 0.30 0.35 884.23 ± 0.30 0.10 871.78 ± 0.30 -0.04 857.63 ± 0.30 -0.05 845.56 ± 0.30 -0.07 829.43 ± 0.30 0.32 805.71 ± 0.30 0.33 787.80 ± 0.30 0.81 764.27 ± 0.30 5.10 880.02 ± 0.05 0.06 875.81 ± 0.05 0.04 880.18 ± 0.10 0.22 875.94 ± 0.10 0.17 871.84 ± 0.10 0.27 896.90 ± 0.15 0.35 884.26 ± 0.15 0.13 871.58 ± 0.15 0.01

2)

61-sch/sau 76-hus/sch 76-hus/sch 76-hus/sch 76-hus/sch 76-hus/sch 76-hus/sch 76-hus/sch 76-hus/sch

32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei1) 32-hei(✕ ) 32-hei1) 32-hei1) 32-hei1) 36-mas(✕ ) 36-mas1) 36-mas1) 36-mas1) 36-mas1) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas1) 46-for/gla( ) 46-for/gla( ) 49-for/ros(✕ ) 49-for/ros(✕ ) 49-for/ros(✕ ) 55-tim/hen(✕ ) 55-tim/hen(✕ ) 55-tim/hen1)

… …

T K

373.15 383.15 393.15 403.15 413.15 423.15 433.15 443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 553.15 563.15 573.15 583.15 593.15 603.15 608.15 293.15 313.15 333.15 293.15 303.15 313.15 323.15 333.15 343.15 353.15 363.15 293.15 298.15 303.15 320.00 340.00 360.00 380.00 400.00 420.00

ρexp ± 2σ est −3

kg ⋅ m

808.80 ± 1.00 800.50 ± 1.00 791.60 ± 1.00 782.30 ± 1.00 773.30 ± 1.00 764.00 ± 1.00 754.50 ± 1.00 743.30 ± 1.00 732.70 ± 1.00 720.90 ± 1.00 710.20 ± 1.00 696.60 ± 1.00 684.20 ± 1.00 671.70 ± 1.00 657.80 ± 1.00 643.30 ± 1.00 629.70 ± 1.00 615.70 ± 1.00 600.90 ± 1.00 585.00 ± 1.00 566.70 ± 1.00 544.60 ± 1.00 523.70 ± 1.00 500.00 ± 1.00 481.20 ± 1.00 879.99 ± 0.20 863.36 ± 0.20 846.43 ± 0.20 880.14 ± 0.30 871.73 ± 0.30 863.28 ± 0.30 854.72 ± 0.30 846.13 ± 0.30 837.50 ± 0.30 828.80 ± 0.30 819.99 ± 0.30 880.14 ± 0.12 875.94 ± 0.12 871.74 ± 0.12 857.35 ± 0.12 840.16 ± 0.12 822.61 ± 0.12 804.72 ± 0.13 786.21 ± 0.13 767.08 ± 0.13

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-2.05 -1.28 -0.98 -0.93 -0.41 -0.00 0.42 -0.62 -0.80 -1.90 -1.58 -3.81 -4.47 -4.80 -4.91 -4.09 -1.73 0.38 1.69 2.12 0.95 -2.32 -1.32 1.89 -0.66 0.03 0.24 0.40 0.18 0.16 0.16 0.11 0.10 0.13 0.17 0.20 0.18 0.17 0.17 0.05 0.05 0.02 0.07 0.01 -0.00

57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 58-pet/smy1) 58-pet/smy1) 58-pet/smy(✕ ) 65-shr/pec-11) 65-shr/pec-11) 65-shr/pec-11) 65-shr/pec-11) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 72-hal/tow(✕ ) 72-hal/tow1) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ )

Not included in Fig. 1. 2)Not included in calculation

cont. Landolt-Börnstein New Series IV/8E

26

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2-Dimethylbenzene (cont.) Table 2. (cont.) T K

440.00 460.00 470.00 480.00 490.00 298.15 298.15 298.15 298.15 254.05 254.05 254.05 258.13 258.13 258.14 263.12 263.13 263.13 268.12 268.12 268.12 273.16 273.16 273.16 278.15 278.15 278.15 283.17 283.17 283.17 1)

ρexp ± 2σ est −3

kg ⋅ m

747.09 ± 0.13 726.16 ± 0.14 715.29 ± 0.14 704.06 ± 0.14 692.46 ± 0.16 875.39 ± 0.10 875.88 ± 0.10 875.12 ± 0.10 876.00 ± 0.10 912.17 ± 0.20 912.18 ± 0.20 912.18 ± 0.20 908.77 ± 0.20 908.77 ± 0.20 908.77 ± 0.20 904.61 ± 0.20 904.61 ± 0.20 904.61 ± 0.20 900.44 ± 0.20 900.45 ± 0.20 900.45 ± 0.20 896.25 ± 0.20 896.25 ± 0.20 896.25 ± 0.20 892.08 ± 0.20 892.08 ± 0.20 892.09 ± 0.20 887.89 ± 0.20 887.89 ± 0.20 887.89 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.06 -0.04 0.01 0.03 0.05 -0.38 0.11 -0.65 0.23 0.01 0.02 0.02 -0.07 -0.07 -0.07 -0.16 -0.16 -0.16 -0.24 -0.23 -0.23 -0.29 -0.29 -0.29 -0.34 -0.34 -0.33 -0.37 -0.37 -0.37

72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 72-hal/tow(✕ ) 85-alm/aww( ) 85-sin/sha(◆) 86-sae/com(∆) 88-dah/sin-1(∇) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31)

{

T K

288.15 288.15 288.15 293.18 293.18 293.18 298.12 298.12 298.12 303.16 303.16 303.16 308.15 308.15 308.15 313.17 313.17 313.18 318.08 318.08 318.08 323.21 323.22 318.15 323.15 328.15 358.15 363.15 368.15 373.15

ρexp ± 2σ est −3

kg ⋅ m

883.71 ± 0.20 883.72 ± 0.20 883.72 ± 0.20 879.50 ± 0.20 879.50 ± 0.20 879.50 ± 0.20 875.34 ± 0.20 875.34 ± 0.20 875.34 ± 0.20 871.09 ± 0.20 871.09 ± 0.20 871.09 ± 0.20 866.87 ± 0.20 866.87 ± 0.20 866.87 ± 0.20 862.62 ± 0.20 862.62 ± 0.20 862.62 ± 0.20 858.44 ± 0.20 858.44 ± 0.20 858.44 ± 0.20 854.07 ± 0.20 854.07 ± 0.20 858.50 ± 0.30 854.33 ± 0.30 850.40 ± 0.30 824.12 ± 0.30 819.73 ± 0.30 815.40 ± 0.30 810.24 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.42 -0.41 -0.41 -0.43 -0.43 -0.43 -0.46 -0.46 -0.46 -0.47 -0.47 -0.47 -0.49 -0.49 -0.49 -0.49 -0.49 -0.48 -0.50 -0.50 -0.50 -0.49 -0.48 -0.38 -0.28 0.07 -0.10 -0.06 0.06 -0.61

92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 93-gar/ban1) 93-gar/ban1) 93-gar/ban1) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ )

Not included in Fig. 1.

Further references: [1883-sch-3, 1884-sch-6, 1887-neu, 1891-gla, 1892-lan/jah, 1893-sch, 1894-bru-1, 1894-tho/rod-1, 1896-per, 02-pat, 12-mor/dag, 12-ric/stu, 13-haw, 14-kre/gug, 14-kre/mei, 14-kre/mei-2, 19-von, 20-har/cla, 24-ric/spe, 26-mat, 32-hof/lan, 32-mil, 32-whi/ros, 32-zel/mar, 36-mar-1, 37-loz/dya, 37-mul, 39-gro/wac, 40-ano, 42-gei, 43-ano, 43-ano-2, 43-ham/mca, 44-ano, 44-can, 44-sch, 46-boo/gre, 46-gei/can, 46-gib/tho, 49-boo/hen, 49-foe/fen, 53-kol/gri, 54-smi/otv, 57-pet/smy, 58-pan/mak-1, 60fro/shr, 61-sch/sau, 63-plu/dow, 69-rod/hsu, 70-gal, 75-mil/wac, 76-hus/sch, 77-jai/bag, 79-kri/sre, 80pit/sur, 80-pro/ram, 83-gop/rao, 84-sin/nig, 85-tak/ter-1, 86-tar/dia-1, 87-dah/dag, 88-jas/nag, 88-rat, 90che/pet, 90-mal/rao, 90-ser/sil, 92-qin/hof, 93-hai/guo, 94-sha/sin, 94-sin/kal, 95-aic/jun, 95-hai/cha, 95hai/min-1, 95-pet/gas, 95-toj/dia]. cont.

Landolt-Börnstein New Series IV/8E

27

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

ρ ± σ fit kg ⋅ m−3

T K

ρ ± σ fit kg ⋅ m−3

T K

ρ ± σ fit kg ⋅ m−3

200.00 210.00

1037.8 ±0.5 1033.8 ± 0.5

220.00 230.00

crystal 1029.8 ± 0.5 1025.8 ± 0.5

240.00 250.00

1021.8 ± 0.5 1017.8 ± 0.5

250.00 260.00 270.00 280.00 290.00 293.15

915.44 ± 0.14 907.32 ± 0.15 899.14 ± 0.16 890.89 ± 0.17 882.58 ± 0.19 879.96 ± 0.19

298.15 300.00 310.00 320.00 330.00 340.00

liquid 875.77 ± 0.20 874.22 ± 0.20 865.79 ± 0.22 857.30 ± 0.23 848.74 ± 0.25 840.11 ± 0.27

350.00 360.00 370.00 380.00 390.00 400.00

831.39 ± 0.28 822.59 ± 0.30 813.68 ± 0.31 804.65 ± 0.33 795.50 ± 0.35 786.20 ± 0.36 cont.

Landolt-Börnstein New Series IV/8E

28

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2-Dimethylbenzene (cont.) Table 3. (cont.)

ρ ± σ fit kg ⋅ m−3

T K

776.73 ± 0.38 767.08 ± 0.39 757.23 ± 0.41 747.15 ± 0.43 736.81 ± 0.44 726.20 ± 0.46 715.28 ± 0.47 704.03 ± 0.49

410.00 420.00 430.00 440.00 450.00 460.00 470.00 480.00

ρ ± σ fit kg ⋅ m−3

T K

490.00 500.00 510.00 520.00 530.00 540.00 550.00 560.00

1,3-Dimethylbenzene

T K

692.41 ± 0.51 680.39 ± 0.54 667.27 ± 1.14 652.32 ± 1.14 636.49 ± 1.14 620.40 ± 1.14 604.29 ± 1.14 588.07 ± 1.14

[108-38-3]

570.00 580.00 590.00 600.00 610.00 620.00 630.00

C8H10

ρ ± σ fit kg ⋅ m−3 571.28 ± 1.14 553.11 ± 1.14 532.35 ± 1.14 507.29 ± 1.14 475.21 ± 1.14 430.44 ± 1.14 326.67 ± 1.14

MW = 106.17

4

Tc = 617.00 K [95-tso/amb] ρc = 283.00 kg·m-3 [95-tso/amb] Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 2.9151 · 10-1 (low temperature range), σc,w = (2.7300 · 10-1 combined temperature ranges, weighted), σc,uw = 7.6270 · 10-2 (combined temperature ranges, unweighted). O

T = 243.13 to 493.60 K T = 493.60 to 617.00 K ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] 3 1.18288 · 10 1.10757 -1.57531 -2.19957 · 10-2 2.53122 · 10-3 1.88426 · 10-4 -6 -2.95434 · 10 -5.69424 · 10-7

Coefficient

A B C D

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

225.31 361.95 362.45 381.45 381.85 393.65 394.95 1)

ρexp ± 2σ est −3

kg ⋅ m

crystal 1016.0 ± 2.9 liquid 805.86 ± 0.30 805.50 ± 0.30 787.20 ± 0.30 786.65 ± 0.30 774.81 ± 0.30 774.25 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

61-sch/sau 1.64 1.73 0.89 0.71 0.03 0.71

1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ )

T K

402.35 402.36 411.25 411.26 412.25 412.26 273.15 291.98 295.77

ρexp ± 2σ est −3

kg ⋅ m

766.37 ± 0.30 766.45 ± 0.30 757.97 ± 0.30 757.93 ± 0.30 756.56 ± 0.30 756.83 ± 0.30 881.52 ± 0.40 865.41 ± 0.40 862.14 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.02 0.07 0.32 0.29 -0.09 0.19 0.29 0.23 0.20

1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 14-tyr1) 14-tyr1) 14-tyr1)

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

29

Table 2. (cont.) T K

302.77 312.52 323.69 332.43 349.07 352.01 372.01 273.15 307.62 333.95 293.15 298.15 293.15 298.15 303.15 373.15 383.15 393.15 403.15 413.15 423.15 433.15 443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 553.15 563.15 573.15 583.15 593.15 603.15 293.15 313.15 333.15 293.15 303.15 1)

ρexp ± 2σ est −3

kg ⋅ m

856.09 ± 0.40 847.66 ± 0.40 837.95 ± 0.40 830.28 ± 0.40 815.46 ± 0.40 812.91 ± 0.40 794.47 ± 0.40 882.30 ± 0.30 853.40 ± 0.30 830.40 ± 0.30 864.10 ± 0.05 859.83 ± 0.05 864.15 ± 0.10 859.88 ± 0.10 855.63 ± 0.10 797.10 ± 1.50 787.20 ± 1.50 778.20 ± 1.50 768.70 ± 1.50 759.30 ± 1.50 749.40 ± 1.50 737.60 ± 1.50 726.30 ± 1.50 714.90 ± 1.50 702.70 ± 1.50 691.00 ± 1.50 678.60 ± 1.50 667.00 ± 1.50 653.70 ± 1.50 639.70 ± 1.50 624.40 ± 1.50 609.90 ± 1.50 593.80 ± 1.50 577.10 ± 1.50 558.10 ± 1.50 537.50 ± 1.50 513.50 ± 1.50 487.60 ± 1.50 455.60 ± 1.50 864.68 ± 0.20 847.33 ± 0.20 829.84 ± 0.20 864.15 ± 0.30 855.58 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.13 0.05 -0.03 -0.11 -0.30 -0.23 -0.58 1.07 1.59 1.33 -0.08 -0.08 -0.03 -0.03 -0.01 3.10 2.48 2.94 3.09 3.54 3.72 2.25 1.54 1.00 -0.03 -0.25 -0.84 -0.28 -0.34 0.22 0.11 1.08 0.74 0.44 -0.85 -1.39 -1.49 2.56 10.61 0.50 0.26 0.08 -0.03 -0.06

14-tyr1) 14-tyr1) 14-tyr1) 14-tyr1) 14-tyr1) 14-tyr1) 14-tyr(✕ ) 24-ric/spe1) 24-ric/spe1) 24-ric/spe(✕ ) 46-for/gla( ) 46-for/gla( ) 49-for/ros(∇) 49-for/ros(∇) 49-for/ros(∇) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 58-pet/smy1) 58-pet/smy1) 58-pet/smy(✕ ) 65-shr/pec1) 65-shr/pec1)

… …

T K

313.15 323.15 333.15 343.15 353.15 363.15 293.15 298.15 303.15 320.00 340.00 360.00 380.00 400.00 420.00 440.00 460.00 470.00 480.00 490.00 298.15 298.15 243.13 243.14 243.14 248.16 248.17 248.17 253.12 253.12 253.12 258.14 258.14 258.14 263.12 263.13 263.13 268.14 268.14 268.14 273.17 273.17 273.17 278.16

ρexp ± 2σ est −3

kg ⋅ m

846.94 ± 0.30 838.23 ± 0.30 829.45 ± 0.30 820.56 ± 0.35 811.64 ± 0.35 802.60 ± 0.40 864.36 ± 0.12 860.09 ± 0.12 855.81 ± 0.12 841.17 ± 0.12 823.57 ± 0.12 805.69 ± 0.12 787.29 ± 0.13 768.25 ± 0.13 748.54 ± 0.13 727.90 ± 0.13 706.21 ± 0.14 694.78 ± 0.14 683.12 ± 0.14 670.90 ± 0.16 860.13 ± 0.10 859.85 ± 0.10 906.85 ± 0.15 906.84 ± 0.15 906.85 ± 0.15 902.55 ± 0.15 902.54 ± 0.15 902.55 ± 0.15 898.32 ± 0.15 898.32 ± 0.15 898.32 ± 0.15 894.04 ± 0.15 894.04 ± 0.15 894.04 ± 0.15 889.80 ± 0.15 889.79 ± 0.15 889.80 ± 0.15 885.53 ± 0.15 885.53 ± 0.15 885.53 ± 0.15 881.25 ± 0.15 881.25 ± 0.15 881.25 ± 0.15 876.99 ± 0.15

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.13 -0.22 -0.31 -0.44 -0.48 -0.53 0.18 0.18 0.17 -0.00 -0.20 -0.29 -0.37 -0.43 -0.34 -0.23 -0.07 -0.12 -0.08 -0.25 0.22 -0.06 -0.19 -0.19 -0.18 -0.13 -0.14 -0.13 -0.08 -0.08 -0.08 -0.04 -0.04 -0.04 -0.01 -0.01 -0.00 0.02 0.02 0.02 0.03 0.03 0.03 0.03

65-shr/pec1) 65-shr/pec1) 65-shr/pec1) 65-shr/pec(✕ ) 65-shr/pec(✕ ) 65-shr/pec1) 72-hal/tow1) 72-hal/tow1) 72-hal/tow1) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow1) 72-hal/tow1) 85-alm/aww( ) 88-dah/sin-1(∆) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ )

{

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

30

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,3-Dimethylbenzene (cont.) Table 2. (cont.) T K

278.17 278.17 283.14 283.15 283.15 288.15 288.15 288.15 293.20 293.20 293.20 293.20 298.14 298.14 298.15 303.26 303.26 303.26 308.11 1)

ρexp ± 2σ est −3

kg ⋅ m

876.99 ± 0.15 876.99 ± 0.15 872.74 ± 0.15 872.74 ± 0.15 872.74 ± 0.15 868.46 ± 0.15 868.46 ± 0.15 868.46 ± 0.15 864.14 ± 0.15 864.13 ± 0.15 864.14 ± 0.15 864.14 ± 0.15 859.89 ± 0.15 859.89 ± 0.15 859.89 ± 0.15 855.49 ± 0.15 855.48 ± 0.15 855.49 ± 0.15 851.30 ± 0.15

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 0.04 0.03 0.04 0.04 0.02 0.02 0.02 0.00 -0.01 0.00 0.00 -0.03 -0.03 -0.02 -0.06 -0.07 -0.06 -0.09

92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31)

T K

308.11 308.12 313.08 313.08 313.08 318.26 318.15 323.15 328.15 333.15 338.15 343.15 348.15 353.15 358.15 363.15 368.15 373.15

ρexp ± 2σ est −3

kg ⋅ m

851.30 ± 0.15 851.30 ± 0.15 847.00 ± 0.15 847.01 ± 0.15 847.01 ± 0.15 842.50 ± 0.15 842.20 ± 0.30 838.09 ± 0.30 833.19 ± 0.30 829.36 ± 0.30 824.49 ± 0.30 820.49 ± 0.30 816.00 ± 0.30 811.25 ± 0.30 806.68 ± 0.30 802.42 ± 0.30 797.65 ± 0.30 792.99 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.09 -0.08 -0.13 -0.12 -0.12 -0.17 -0.57 -0.36 -0.93 -0.40 -0.90 -0.51 -0.57 -0.87 -0.96 -0.71 -0.94 -1.01

92-ano-31) 92-ano-31) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 92-ano-3(✕ ) 93-gar/ban1) 93-gar/ban1) 93-gar/ban(✕ ) 93-gar/ban1) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ )

Not included in Fig. 1.

Further references: [1883-sch-3, 1884-gla, 1884-sch-6, 1886-bru, 1891-gla, 1892-lan/jah, 1894-tho/rod1, 1896-per, 02-pat, 08-ric/mat, 12-mor/dag, 12-wal/swi, 13-haw, 14-kre/mei, 14-kre/mei-2, 19-von, 24mil, 26-mat, 28-ric/rob, 29-ham/and, 30-fis/kle, 30-tim/hen, 31-dec, 32-gri/kof, 32-hei, 32-hof/lan, 32whi/ros, 32-zel/mar, 33-azi/bha, 35-mil, 36-mar-1, 36-mas, 37-loz/dya, 39-gro/wac, 40-ano, 42-gei, 43ano, 43-ano-2, 43-ham/mca, 44-ano, 44-ano-2, 44-can, 44-sch, 46-gei/can, 48-rey/ebe, 49-foe/fen, 49vve/tak, 50-nic/hei, 50-par/gol, 50-tei/gor, 51-ano, 53-par/cha, 55-cut/jon, 56-ano, 57-pet/smy, 60-fro/shr, 61-sch/sau, 63-plu/dow, 65-shr/pec-1, 67-seu/mor, 69-rod/hsu, 70-gal, 74-jai/nor, 75-mil/wac, 79-kri/sre, 80-cha/ses, 80-pit/sur, 83-gop/rao, 86-osh/han, 86-tar/dia-1, 87-dah/dag, 88-jas/nag, 90-ser/sil, 91-ric/lau, 92-qin/hof, 93-hai/guo, 94-sha/sin, 94-sin/kal, 95-aic/jun, 95-hai/cha, 95-hai/min-1, 95-toj/dia].

cont.

Landolt-Börnstein New Series IV/8E

31

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

240.00 250.00 260.00 270.00 280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 909.76 ± 0.16 901.09 ± 0.15 892.49 ± 0.14 883.92 ± 0.14 875.39 ± 0.14 866.86 ± 0.14 864.18 ± 0.15 859.91 ± 0.15 858.33 ± 0.15

T K

310.00 320.00 330.00 340.00 350.00 360.00 370.00 380.00 390.00

ρ ± σ fit kg ⋅ m−3 849.77 ± 0.16 841.17 ± 0.17 832.51 ± 0.19 823.77 ± 0.21 814.93 ± 0.23 805.98 ± 0.26 796.89 ± 0.28 787.66 ± 0.32 778.26 ± 0.35

T K

400.00 410.00 420.00 430.00 440.00 450.00 460.00 470.00 480.00

ρ ± σ fit kg ⋅ m−3 768.68 ± 0.39 758.89 ± 0.43 748.88 ± 0.47 738.63 ± 0.52 728.13 ± 0.57 717.35 ± 0.62 706.28 ± 0.68 694.90 ± 0.74 683.20 ± 0.81 cont.

Landolt-Börnstein New Series IV/8E

32

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,3-Dimethylbenzene (cont.) Table 3. (cont.)

ρ ± σ fit kg ⋅ m−3

T K

671.15 ± 0.88 658.39 ± 1.13 644.16 ± 1.13 629.11 ± 1.13 613.72 ± 1.13

490.00 500.00 510.00 520.00 530.00

ρ ± σ fit kg ⋅ m−3

T K

540.00 550.00 560.00 570.00 580.00

1,4-Dimethylbenzene

T K

598.07 ± 1.13 581.93 ± 1.13 564.73 ± 1.13 545.54 ± 1.13 523.04 ± 1.13

[106-42-3]

590.00 600.00 610.00

C8H10

ρ ± σ fit kg ⋅ m−3 495.31 ± 1.13 459.11 ± 1.13 406.14 ± 1.13

MW = 106.17

5

Tc = 616.20 K [95-tso/amb] ρc = 281.00 kg·m-3 [95-tso/amb] Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 3.8692 · 10-1 (low temperature range), σc,w = (2.6787 · 10-1 combined temperature ranges, weighted), σc,uw = 2.3744 · 10-1 (combined temperature ranges, unweighted). O

T = 273.15 to 493.00 K T = 493.00 to 616.20 K 2 3 ρ = A + BT + CT + DT + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] 1.03587 · 103 1.15837 -1.54210 · 10-5 -2.52183 · 10-2 -3.79683 · 10-3 2.31182 · 10-4 -6 8.08567 · 10 -7.29675 · 10-7 -9 -7.08870 · 10

Coefficient

A B C D E

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

286.6 286.4 360.05 360.05 380.05 380.25 392.35 402.75 402.76 410.25 1)

ρexp ± 2σ est −3

kg ⋅ m

crystal 1052.0 ± 2.0 1058.5 ± 4.2 liquid 801.87 ± 0.30 802.13 ± 0.30 783.39 ± 0.30 783.08 ± 0.30 772.90 ± 0.30 759.66 ± 0.30 759.81 ± 0.30 754.27 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

36-roz 61-sch/sau -0.06 0.20 -0.03 -0.15 1.14 -2.04 -1.88 -0.06

1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 1887-neu1) 1887-neu(✕ ) 1887-neu(✕ )

T K

410.26 411.55 411.55 273.15 293.15 296.05 307.90 313.15 333.95 293.15 313.15 333.15

ρexp ± 2σ est −3

kg ⋅ m

754.19 ± 0.30 753.01 ± 0.30 753.04 ± 0.30 877.90 ± 0.30 861.10 ± 0.30 858.90 ± 0.30 849.20 ± 0.30 844.40 ± 0.30 826.90 ± 0.30 861.00 ± 0.30 843.70 ± 0.30 826.00 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.13 -0.03 0.00 -0.00 0.18 0.46 0.98 0.73 1.50 0.08 0.03 -0.11

1887-neu(✕ ) 1887-neu(✕ ) 1887-neu(✕ ) 24-ric/spe(✕ ) 24-ric/spe1) 24-ric/spe1) 24-ric/spe1) 24-ric/spe1) 24-ric/spe(✕ ) 34-fai1) 34-fai1) 34-fai1)

Not included in Fig. 1.

cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

33

Table 2. (cont.) T K

353.15 373.15 393.15 293.15 298.15 293.15 298.15 303.15 423.15 433.15 443.15 453.15 463.15 473.15 483.15 493.15 503.15 513.15 523.15 533.15 543.15 553.15 563.15 573.15 583.15 593.15 603.15 608.15 613.15 293.15 303.15 313.15 323.15 1)

ρexp ± 2σ est −3

kg ⋅ m

808.10 ± 0.40 790.20 ± 0.40 772.40 ± 0.40 860.98 ± 0.05 856.63 ± 0.05 861.03 ± 0.10 856.67 ± 0.10 852.44 ± 0.10 743.00 ± 1.50 733.00 ± 1.50 722.00 ± 1.50 707.00 ± 1.50 696.60 ± 1.50 684.30 ± 1.50 671.70 ± 1.50 659.60 ± 1.50 647.30 ± 1.50 634.30 ± 1.50 619.60 ± 1.50 604.00 ± 1.50 587.30 ± 1.50 569.90 ± 1.50 551.00 ± 1.50 530.40 ± 1.50 503.80 ± 1.50 475.70 ± 1.50 440.90 ± 1.50 421.20 ± 1.50 396.80 ± 1.50 861.08 ± 0.20 852.43 ± 0.20 843.68 ± 0.20 834.88 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.10 0.34 1.41 0.06 -0.00 0.11 0.04 0.11 1.62 1.93 1.48 -2.68 -1.94 -2.76 -3.51 -3.36 -1.86 0.59 1.98 2.55 1.97 0.95 -0.58 -1.67 -4.92 -3.34 2.41 10.53 26.65 0.16 0.10 0.01 -0.05

34-fai1) 34-fai(✕ ) 34-fai(✕ ) 46-for/gla( ) 46-for/gla( ) 49-for/ros1) 49-for/ros1) 49-for/ros(∇) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 57-fra1) 57-fra1) 57-fra1) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra(✕ ) 57-fra1) 65-shr/pec-11) 65-shr/pec-11) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ )

{ {

T K

333.15 343.15 353.15 363.15 293.15 298.15 303.15 320.00 340.00 360.00 380.00 400.00 420.00 440.00 460.00 470.00 480.00 490.00 303.15 318.15 323.15 328.15 333.15 338.15 343.15 348.15 353.15 358.15 363.15 368.15 373.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

826.02 ± 0.20 817.08 ± 0.20 808.08 ± 0.20 799.01 ± 0.20 860.98 ± 0.12 856.61 ± 0.12 852.25 ± 0.12 837.55 ± 0.12 819.82 ± 0.12 801.77 ± 0.12 783.22 ± 0.13 764.14 ± 0.13 744.38 ± 0.13 723.78 ± 0.13 702.00 ± 0.14 690.65 ± 0.14 678.86 ± 0.14 666.67 ± 0.16 852.30 ± 0.10 839.03 ± 0.30 835.10 ± 0.30 830.07 ± 0.30 825.82 ± 0.30 821.43 ± 0.30 817.04 ± 0.30 812.51 ± 0.30 807.56 ± 0.30 803.10 ± 0.30 798.73 ± 0.30 794.27 ± 0.30 789.29 ± 0.30 856.58 ± 0.03

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.09 -0.12 -0.12 -0.08 0.06 -0.02 -0.08 -0.14 -0.20 -0.20 -0.25 -0.24 -0.19 -0.09 -0.08 -0.06 -0.12 -0.19 -0.03 -0.28 0.17 -0.46 -0.29 -0.24 -0.16 -0.21 -0.64 -0.56 -0.36 -0.22 -0.57 -0.05

65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 65-shr/pec-1(✕ ) 72-hal/tow1) 72-hal/tow1) 72-hal/tow1) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow(◆) 72-hal/tow1) 72-hal/tow1) 85-nat/vis(∆) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 95-hai/cha( )

…

Not included in Fig. 1.

Further references: [1884-gla, 1884-sch-6, 1888-pin, 1891-gla, 1892-lan/jah, 1893-sch, 1894-tho/rod-1, 1896-per, 02-pat, 08-ric/mat, 12-blo, 12-mor/dag, 13-haw, 14-kre/gug, 14-kre/mei, 14-kre/mei-2, 19-von, 20-har/cla, 25-gil/bea-2, 25-lew, 26-bri, 26-mat, 26-tim/mar-1, 31-adk/fol-1, 32-cha, 32-hei, 32-vor/fis, 32-whi/ros, 32-zel/mar, 35-mil, 36-kaz/pla, 36-mar-1, 36-mas, 37-loz/dya, 37-mul, 39-gro/wac, 40-ano, 41-sch/sch-1, 42-ark/mee, 42-gei, 43-ano-2, 43-ham/mca, 44-ano, 44-can, 44-sch, 45-gre/vog-1, 46-ano-8, 46-boo/gre, 46-gei/can, 46-gib/tho, 49-boo/hen, 49-foe/fen, 49-til/pes, 50-bry/tur, 53-tre, 54-eva/smi, 56ano, 58-pan/mak-1, 60-fro/shr, 61-fin, 61-shi/hil, 63-plu/dow, 68-gaw/swi-1, 69-rod/hsu, 70-bag/raj, 70gal, 70-pur/raj, 71-hyd/sub, 72-soo/bag, 75-mil/wac, 76-abs/tut, 76-rad/han, 77-bag/kat] cont.

Landolt-Börnstein New Series IV/8E

34

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,4-Dimethylbenzene (cont.) Further references: (cont)

ρ

ρ

[79-kri/sre, 79-mur-4, 80-cha/ses, 80-pit/sur, 82-nat/nar, 82-rao/vis, 82-rao/vis-1, 82-vis/rao, 83-gop/rao, 83-nat/tri, 84-sin/nig, 85-alm/aww, 85-mar/bha, 85-sin/mah, 85-sin/sha, 86-tar/aic, 86-tar/dia-1, 87bag/rat, 87-dah/dag, 87-man/ami, 87-yad/yad, 88-aww/sal, 88-cha/sur, 88-dah/sin-1, 88-fer/lap, 88jas/nag, 88-rat, 90-che/pet, 90-fer/lap, 90-ser/sil, 91-wil/jim, 92-qin/hof, 93-hai/guo, 94-bla/bel, 94sha/sin, 94-sin/kal, 95-aic/jun, 95-hai/min-1, 95-pet/gas, 95-toj/dia].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

35

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

880.55 ± 0.12 872.12 ± 0.12 863.61 ± 0.13 860.92 ± 0.13 856.63 ± 0.14 855.04 ± 0.15 846.40 ± 0.17 837.69 ± 0.19 828.90 ± 0.21 820.02 ± 0.24 811.05 ± 0.26 801.97 ± 0.28 792.79 ± 0.30

270.00 280.00 290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00 350.00 360.00 370.00

380.00 390.00 400.00 410.00 420.00 430.00 440.00 450.00 460.00 470.00 480.00 490.00 500.00

Ethylbenzene

ρ ± σ fit kg ⋅ m−3

T K

783.47 ± 0.32 774.00 ± 0.35 764.38 ± 0.37 754.58 ± 0.39 744.57 ± 0.41 734.35 ± 0.44 723.87 ± 0.46 713.13 ± 0.48 702.08 ± 0.50 690.71 ± 0.53 678.98 ± 0.57 666.86 ± 0.61 653.75 ± 0.92

[100-41-4]

510.00 520.00 530.00 540.00 550.00 560.00 570.00 580.00 590.00 600.00 610.00

C8H10

ρ ± σ fit kg ⋅ m−3 638.68 ± 0.92 622.71 ± 0.92 606.54 ± 0.92 590.41 ± 0.92 574.17 ± 0.92 557.22 ± 0.92 538.54 ± 0.92 516.62 ± 0.92 489.28 ± 0.92 452.91 ± 0.92 397.96 ± 0.92

MW = 106.17

6

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.7774 · 10-1 (combined temperature ranges, weighted), σc,uw = 4.4148 · 10-2 (combined temperature ranges, unweighted). T = 178.05 to 490.00 K ρ = A + BT + CT 2 + DT 3 + … 1.16629 · 103 -1.35889 1.81018 · 10-3 -2.24496 · 10-6

Coefficient A B C D

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

20.0 20.0 283.05 408.85 408.85 1)

ρexp ± 2σ est −3

kg ⋅ m

crystal 1085.6 ± 5.6 1087.8 ± 5.6 liquid 876.00 ± 1.00 761.10 ± 1.00 761.20 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

30-heu 30-heu 0.22 1.23 1.33

1883-sch-31) 1883-sch-3(✕ ) 1883-sch-3(✕ )

T K

409.05 178.05 189.54 227.95 250.25 273.15 288.00

ρexp ± 2σ est −3

kg ⋅ m

761.10 ± 1.50 968.07 ± 0.40 957.96 ± 0.40 924.13 ± 0.40 904.62 ± 0.40 884.56 ± 0.40 871.50 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.43 -0.99 -0.51 0.13 0.21 0.14 0.05

1884-sch-6(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas1) 36-mas1) 36-mas1)

Not included in Fig. 1.

cont. Landolt-Börnstein New Series IV/8E

36

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Ethylbenzene (cont.) Table 2. (cont.) T K

300.05 318.65 333.10 352.85 370.75 399.05 313.15 333.35 374.05 293.15 298.15 293.15 298.15 303.15 293.15 313.15 333.15 293.15 298.15 303.15 320.00 360.00 380.00 400.00 420.00 440.00 460.00 470.00 480.00 490.00 293.15 303.15 313.15 323.15 298.15 308.15 243.12 243.12 243.13 248.12 248.12 248.13 250.04 1)

ρexp ± 2σ est −3

kg ⋅ m

860.83 ± 0.40 844.10 ± 0.40 831.36 ± 0.50 813.71 ± 0.50 796.93 ± 0.50 770.14 ± 0.50 848.90 ± 0.50 830.20 ± 0.50 793.50 ± 0.50 866.94 ± 0.05 862.56 ± 0.05 867.00 ± 0.10 862.62 ± 0.10 858.26 ± 0.10 866.97 ± 0.20 849.47 ± 0.20 831.69 ± 0.20 866.96 ± 0.12 862.53 ± 0.12 858.15 ± 0.12 843.19 ± 0.12 806.88 ± 0.12 788.12 ± 0.13 768.77 ± 0.13 748.76 ± 0.13 727.87 ± 0.13 705.97 ± 0.13 694.50 ± 0.14 682.73 ± 0.14 670.45 ± 0.16 867.08 ± 0.35 857.98 ± 0.35 848.68 ± 0.34 839.78 ± 0.33 862.25 ± 0.10 853.10 ± 0.20 910.64 ± 0.15 910.65 ± 0.15 910.63 ± 0.15 906.29 ± 0.15 906.29 ± 0.15 906.28 ± 0.15 904.61 ± 0.15

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.05 -0.35 -0.16 0.15 0.03 0.51 -0.43 -1.10 -0.28 0.00 0.01 0.06 0.07 0.10 0.03 0.14 0.21 0.02 -0.02 -0.01 -0.06 -0.07 0.00 0.08 0.21 0.27 0.25 0.09 -0.09 -0.49 0.14 -0.18 -0.65 -0.66 -0.30 -0.65 -0.01 -0.00 -0.02 0.02 0.02 0.01 0.02

36-mas1) 36-mas1) 36-mas1) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 37-bue/gar1) 37-bue/gar1) 37-bue/gar(✕ ) 46-for/gla( ) 46-for/gla( ) 49-for/ros(∆) 49-for/ros(∆) 49-for/ros(∆) 58-pet/smy1) 58-pet/smy(✕ ) 58-pet/smy(✕ ) 72-hal/tow1) 72-hal/tow1) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 79-mal/pat1) 79-mal/pat1) 79-mal/pat1) 79-mal/pat(✕ ) 85-alm/aww( ) 88-sub/rao-1(✕ ) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-31)

… …

{

T K

250.04 250.05 250.06 253.14 253.14 253.15 253.15 258.14 258.15 258.16 263.14 263.14 263.14 263.15 268.13 268.14 268.14 268.14 273.14 273.14 273.15 278.14 278.14 278.14 283.15 283.15 283.15 288.14 288.14 288.15 293.16 293.16 293.17 293.17 298.17 298.17 298.17 303.15 303.15 303.15 318.15 323.15 328.15

ρexp ± 2σ est −3

kg ⋅ m

904.61 ± 0.15 904.61 ± 0.15 904.61 ± 0.15 901.92 ± 0.15 901.92 ± 0.15 901.91 ± 0.15 901.91 ± 0.15 897.56 ± 0.15 897.56 ± 0.15 897.55 ± 0.15 893.21 ± 0.15 893.21 ± 0.15 893.21 ± 0.15 893.20 ± 0.15 888.86 ± 0.15 888.86 ± 0.15 888.86 ± 0.15 888.85 ± 0.15 884.49 ± 0.15 884.49 ± 0.15 884.49 ± 0.15 880.13 ± 0.15 880.13 ± 0.15 880.13 ± 0.15 875.75 ± 0.15 875.75 ± 0.15 875.75 ± 0.15 871.38 ± 0.15 871.38 ± 0.15 871.37 ± 0.15 866.97 ± 0.15 866.97 ± 0.15 866.97 ± 0.15 866.97 ± 0.15 862.56 ± 0.15 862.56 ± 0.15 862.57 ± 0.15 858.17 ± 0.15 858.17 ± 0.15 858.17 ± 0.15 844.50 ± 0.30 840.39 ± 0.30 835.39 ± 0.30

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.02 0.02 0.03 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.04 0.05 0.05 0.02 0.02 0.03 0.01 0.01 0.01 -0.39 -0.05 -0.58

92-ano-31) 92-ano-31) 92-ano-31) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-3(◆) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 92-ano-31) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ )

Not included in Fig. 1.

cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

37

Table 2. (cont.) T K

333.15 338.15 343.15 348.15 353.15 358.15

−3

kg ⋅ m

831.18 ± 0.30 826.70 ± 0.30 822.19 ± 0.30 817.84 ± 0.30 812.73 ± 0.30 808.12 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.30 -0.27 -0.24 -0.03 -0.55 -0.55

93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ )

T K

363.15 368.15 373.15 313.15 333.15

ρexp ± 2σ est −3

kg ⋅ m

803.75 ± 0.30 799.10 ± 0.30 794.21 ± 0.30 849.60 ± 0.30 831.80 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.27 -0.24 -0.42 0.27 0.32

93-gar/ban(✕ ) 93-gar/ban(✕ ) 93-gar/ban(✕ ) 95-che/kna1) 95-che/kna(✕ )

Not included in Fig. 1.

ρ

ρ

1)

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Further references: [1867-fit/kon, 1883-weg, 1886-bru, 1890-gar, 1892-lan/jah, 1894-tho/rod-1, 1896per, 1897-tho/rod-1, 1897-tho/rod-2, 1898-kah, 03-you/for, 08-ric/mat, 11-hil/dun, 12-dun/hil, 12mor/dag, 13-dun/hil, 16-ric/shi, 19-ric/shi, 19-von, 24-bus-1, 24-eis/sch] cont.

Landolt-Börnstein New Series IV/8E

38

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Further references: (cont.) [24-eis/sch-1, 24-ric/spe, 25-gil/bea-2, 26-mat, 26-tim/mar-1, 30-fis/kle, 31-bla/lei, 32-gar/eva, 32-hof/lan, 33-azi/bha, 33-whi/ros, 34-war/ful, 35-mal, 35-mam, 36-ipa/gro-1, 37-loz/dya, 37-mck/sow-1, 37-tsu/vik, 38-kom/mit, 38-oco/sow, 39-ano, 39-cam/oco, 39-gro/wac, 39-sch/hop, 40-ano, 42-sch, 42-van/mee, 43ano, 43-ano-2, 43-ham/mca, 45-gre/vog-1, 46-gei/can, 46-gib/tho, 48-bal/mar, 48-tsc, 48-tsc-1, 48-vog-6, 49-buc/ray, 49-foe/fen, 50-bry/tur, 51-mas/gis, 52-ano-8, 53-tre, 54-ben, 54-gri/jes, 55-dre/mar, 55jun/von, 55-yan/van, 56-web-1, 57-mal/mal, 57-pet/smy, 58-ria/vai, 59-ell/raz, 60-qoz/van, 60-ter/kep, 68ano, 69-her/ber, 69-rod/hsu, 70-bag/raj, 70-gal, 70-pur/raj, 71-kor-1, 72-soo/bag, 74-jai/nor, 75-mil/wac, 76-for/ben, 77-bag/kat, 79-gro-3, 79-gro-4, 79-gro-6, 80-pit/sur, 80-ric/tej, 81-gro-2, 81-gro-7, 83gop/rao, 85-are/rub, 86-pau/kru-1, 86-pla/sha, 86-tar/dia-1, 87-aww/aln, 87-bag/rat, 87-dew/meh, 88fer/lap, 88-jas/nag, 88-pau/kru-1, 89-sin/sin, 90-asf/sid-1, 91-wil/jim, 92-qin/hof, 92-qin/hof-1, 93com/fra, 93-hai/guo, 95-fuj/tam-1, 95-hai/cha, 95-hai/min-1, 95-ram/rao, 95-toj/dia].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

170.00 180.00 190.00 200.00 210.00 220.00 230.00 240.00 250.00 260.00 270.00 280.00

ρ ± σ fit kg ⋅ m−3

T K

976.57 ± 0.23 967.25 ± 0.20 958.05 ± 0.18 948.96 ± 0.17 939.96 ± 0.16 931.05 ± 0.16 922.19 ± 0.16 913.39 ± 0.17 904.63 ± 0.18 895.89 ± 0.19 887.17 ± 0.20 878.44 ± 0.21

1-Ethyl-2-methylbenzene

290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00 350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3

T K

869.70 ± 0.22 866.94 ± 0.22 862.55 ± 0.23 860.93 ± 0.23 852.12 ± 0.24 843.25 ± 0.25 834.31 ± 0.26 825.29 ± 0.27 816.18 ± 0.28 806.95 ± 0.29 797.60 ± 0.30 788.12 ± 0.31

[611-14-3]

390.00 400.00 410.00 420.00 430.00 440.00 450.00 460.00 470.00 480.00 490.00 500.00

C9H12

ρ ± σ fit kg ⋅ m−3 778.49 ± 0.32 768.69 ± 0.33 758.71 ± 0.34 748.55 ± 0.35 738.18 ± 0.36 727.60 ± 0.37 716.78 ± 0.38 705.72 ± 0.40 694.41 ± 0.41 682.82 ± 0.42 670.94 ± 0.43 658.77 ± 0.45

MW = 120.19

7

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.9342 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.0323 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 284.55 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.12141 · 103 -8.21219 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

39

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

284.55 284.65 285.25 293.15 293.15 284.65 285.25 293.15 288.85 289.20 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

888.50 ± 0.80 888.40 ± 0.80 888.40 ± 0.80 882.00 ± 2.00 882.00 ± 2.00 888.40 ± 1.50 888.40 ± 1.50 882.00 ± 1.50 884.10 ± 1.00 883.10 ± 1.00 880.80 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.77 0.75 1.24 1.33 1.33 0.75 1.24 1.33 -0.10 -0.81 0.13

10-von/eis(✕ ) 10-von/eis(✕ ) 10-von/eis(✕ ) 10-von/eis1) 10-von/eis1) 18-von-2(✕ ) 18-von-21) 18-von-21) 19-von(✕ ) 19-von(✕ ) 43-ano-3(∆)

T K

293.15 293.15 293.15 293.15 293.15 298.15 303.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

880.60 ± 0.40 880.60 ± 0.30 880.80 ± 0.30 880.60 ± 0.40 880.67 ± 0.10 876.55 ± 0.10 872.50 ± 0.10 880.40 ± 0.40 880.90 ± 0.40 878.00 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.07 -0.07 0.13 -0.07 0.00 -0.01 0.04 -0.27 0.23 -2.67

46-ano(✕ ) 46-boo/gre( ) 46-hir/fau(∇) 49-boo/hen(✕ ) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 51-kut/nic(◆) 56-ano(✕ ) 63-ano-3(✕ )

{

… … …

Not included in Fig. 1.

ρ

ρ

Further references: [24-eis/sch-1, 25-bla/mon, 34-lov/cam, 37-kur/hea, 41-ano, 43-ano, 44-kur, 49foe/fen, 57-ano-9].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

40

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Ethyl-2-methylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

891.47 ± 0.32 883.25 ± 0.75

280.00 290.00

293.15 298.15

1-Ethyl-3-methylbenzene

ρ ± σ fit kg ⋅ m−3

T K

880.67 ± 0.38 876.56 ± 0.20

[620-14-4]

300.00 310.00

C9H12

ρ ± σ fit kg ⋅ m−3 875.04 ± 0.30 866.83 ± 2.00

MW = 120.19

8

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2296(combined temperature ranges, weighted), σc,uw = 1.2505 · 10-1 (combined temperature ranges, unweighted). T = 287.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.11636 · 103 -8.57988 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 290.15 293.15 298.15 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

870.20 ± 1.00 868.14 ± 1.00 865.70 ± 1.00 861.40 ± 1.00 864.70 ± 0.40 864.60 ± 0.30 864.80 ± 0.60 864.50 ± 0.05 864.40 ± 0.40 864.80 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.07 0.73 0.86 0.85 -0.14 -0.24 -0.04 -0.34 -0.44 -0.04

35-hal(✕ ) 37-tsu/vik(✕ ) 41-ano1) 41-ano(✕ ) 43-ano(✕ ) 44-boo/per(◆) 44-kur(✕ ) 46-boo/gre( ) 46-ebe-2(✕ ) 46-hir/fau(✕ )

{

T K

293.15 293.15 293.15 293.15 287.15 293.15 298.15 303.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

864.50 ± 0.05 864.50 ± 0.05 864.40 ± 0.40 864.50 ± 0.05 871.00 ± 1.00 864.50 ± 0.05 860.38 ± 0.05 856.28 ± 0.05 864.30 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.34 -0.34 -0.44 -0.34 1.02 -0.34 -0.17 0.02 -0.54

… …

47-boo/gre( ) 47-boo/gre( ) 48-rey/ebe(✕ ) 49-boo/hen(∆) 49-buc/col(✕ ) 49-for/ros(∇) 49-for/ros(∇) 49-for/ros(∇) 51-kut/nic(✕ )

Not included in Fig. 1.

Further references: [19-von, 22-von/kol, 34-lov/cam, 37-kur/hea, 49-foe/fen, 54-car/eas, 58-lev/nic].

cont.

Landolt-Börnstein New Series IV/8E

41

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 876.12 ± 2.50 867.54 ± 0.53

T K

293.15 298.15

ρ ± σ fit kg ⋅ m−3 864.84 ± 0.30 860.55 ± 0.41

T K

300.00 310.00

ρ ± σ fit kg ⋅ m−3 858.96 ± 0.40 850.38 ± 1.00

42

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Ethyl-4-methylbenzene

[622-96-8]

C9H12

MW = 120.19

9

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 5.6535 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.4472 · 10-1 (combined temperature ranges, unweighted). T = 284.45 to 435.15 K ρ = A + BT + CT 2 + DT 3 + … 1.11329 · 103 -8.59482 · 10-1

ρ

ρ

Coefficient A B

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

43

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

284.45 435.15 435.15 434.95 284.45 290.15 293.15 298.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

−3

kg ⋅ m

869.40 ± 1.00 739.30 ± 1.00 739.40 ± 1.00 739.30 ± 1.60 869.40 ± 1.00 864.40 ± 0.80 861.90 ± 0.80 857.38 ± 0.80

0.59 0.01 0.11 -0.16 0.59 0.48 0.56 0.34

1883-sch-3(✕ ) 1883-sch-3(✕ ) 1883-sch-3(✕ ) 1884-sch-6(✕ ) 03-von/kei(✕ ) 35-lef/lef1) 35-lef/lef1) 35-lef/lef1)

T K

318.15 293.15 293.15 293.15 293.15 293.15 298.15 303.15

ρexp ± 2σ est −3

kg ⋅ m

838.36 ± 0.80 861.30 ± 0.30 861.20 ± 0.40 861.80 ± 0.30 861.40 ± 0.40 861.16 ± 0.10 857.00 ± 0.10 852.97 ± 0.10

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-1.49 -0.04 -0.14 0.46 0.06 -0.18 -0.04 0.23

35-lef/lef(✕ ) 43-ano-3( ) 45-ano-8(∇) 46-hir/fau(∆) 49-boo/hen(◆) 49-for/ros( ) 49-for/ros( ) 49-for/ros( )

{

… … …

Not included in Fig. 1.

Further references: [03-kla/kei, 11-von/mul, 15-wal-1, 18-wal, 19-von, 22-von/kol, 23-kro-1, 24-eis/sch1, 25-gil/bea-2, 33-zel/pac, 34-lov/cam, 37-kur/hea, 37-tsu/vik, 41-ano, 41-sch/sch-1, 43-ano, 44-kur, 46boo/gre, 47-boo/gre, 49-buc/col, 49-foe/fen, 49-lut, 51-kut/nic, 57-syk/her, 58-lev/nic]. Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00 293.15 298.15 300.00 310.00 320.00

ρ ± σ fit kg ⋅ m−3

T K

872.64 ± 1.62 864.04 ± 0.49 861.34 ± 0.30 857.04 ± 0.13 855.45 ± 0.10 846.85 ± 0.30 838.26 ± 0.97

(1-Methylethyl)benzene

330.00 340.00 350.00 360.00 370.00 380.00 390.00

ρ ± σ fit kg ⋅ m−3

T K

829.67 ± 1.99 821.07 ± 3.23 812.48 ± 4.55 803.88 ± 5.84 795.29 ± 6.95 786.69 ± 7.77 778.10 ± 8.16

[98-82-8]

400.00 410.00 420.00 430.00 440.00 450.00

C9H12

ρ ± σ fit kg ⋅ m−3 769.50 ± 8.00 760.91 ± 7.16 752.31 ± 5.51 743.72 ± 2.92 735.12 ± 0.20 726.53 ± 0.22

MW = 120.19

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.5923 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.9954 · 10-2 (combined temperature ranges, unweighted). Coefficient A B C D

T = 243.11 to 470.00 K ρ = A + BT + CT 2 + DT 3 + … 1.15171 · 103 -1.29010 1.59210 · 10-3 -1.92207 · 10-6 cont.

Landolt-Börnstein New Series IV/8E

10

44

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

(1-Methylethyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15 293.15 314.35 334.35 359.85 293.15 298.15 303.15 253.15 263.15 273.15 283.15 293.15 303.15 313.15 323.15 333.15 343.15 353.15 293.15 313.15 333.15 293.15 313.15 333.15 293.15 313.15 333.15 293.15 298.15 303.15 320.00 340.00 360.00 1)

ρexp ± 2σ est −3

kg ⋅ m

861.73 ± 0.05 857.46 ± 0.05 861.60 ± 0.40 844.20 ± 0.40 827.40 ± 0.40 805.80 ± 0.40 861.77 ± 0.10 857.49 ± 0.10 853.33 ± 0.10 898.10 ± 0.50 888.10 ± 0.50 879.10 ± 0.50 871.60 ± 0.50 862.40 ± 0.50 853.50 ± 0.50 845.70 ± 0.50 836.30 ± 0.60 827.70 ± 0.60 818.50 ± 0.60 809.20 ± 0.60 861.30 ± 0.40 844.70 ± 0.40 827.80 ± 0.40 861.90 ± 0.50 845.00 ± 0.50 827.80 ± 0.50 861.90 ± 0.20 844.99 ± 0.20 827.77 ± 0.20 861.68 ± 0.08 857.43 ± 0.08 853.15 ± 0.08 838.77 ± 0.10 821.42 ± 0.10 803.80 ± 0.10

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.19 -0.20 -0.32 0.41 0.89 1.73 -0.15 -0.17 -0.06 2.13 0.65 0.16 1.16 0.48 0.11 0.88 0.08 0.15 -0.33 -0.82 -0.62 -0.12 0.25 -0.02 0.18 0.25 -0.02 0.17 0.22 -0.24 -0.23 -0.24 -0.16 -0.16 -0.14

… …

46-for/gla( ) 46-for/gla( ) 48-vog-61) 48-vog-61) 48-vog-6(✕ ) 48-vog-61) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan1) 55-mam/pan(✕ ) 55-mam/pan1) 56-tor-21) 56-tor-21) 56-tor-2(✕ ) 57-pet/smy1) 57-pet/smy1) 57-pet/smy(✕ ) 58-pet/smy1) 58-pet/smy(◆) 58-pet/smy(◆) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇)

{ { {

T K

380.00 400.00 420.00 440.00 460.00 470.00 480.00 490.00 243.11 243.12 248.13 248.14 253.15 253.15 253.16 258.12 258.12 263.12 263.12 268.12 273.10 273.14 278.14 278.15 283.14 288.14 293.10 293.15 298.15 303.14 308.15 308.16 313.11 318.17

ρexp ± 2σ est −3

kg ⋅ m

785.79 ± 0.10 767.33 ± 0.15 748.28 ± 0.15 728.51 ± 0.20 707.87 ± 0.20 697.10 ± 0.25 686.05 ± 0.25 674.56 ± 0.25 904.42 ± 0.10 904.41 ± 0.10 900.17 ± 0.10 900.17 ± 0.10 895.93 ± 0.10 895.94 ± 0.10 895.92 ± 0.10 891.73 ± 0.10 891.74 ± 0.10 887.50 ± 0.10 887.51 ± 0.10 883.28 ± 0.10 879.04 ± 0.10 879.04 ± 0.10 874.81 ± 0.10 874.80 ± 0.10 870.58 ± 0.10 866.33 ± 0.10 862.07 ± 0.10 862.07 ± 0.10 857.81 ± 0.10 853.55 ± 0.10 849.27 ± 0.10 849.27 ± 0.10 845.02 ± 0.10 840.67 ± 0.10

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.12 -0.07 -0.04 -0.06 -0.20 -0.41 -0.67 -1.14 -0.14 -0.14 -0.09 -0.08 -0.04 -0.03 -0.05 -0.01 0.00 0.02 0.03 0.06 0.06 0.09 0.11 0.11 0.14 0.14 0.11 0.15 0.15 0.15 0.16 0.17 0.16 0.16

72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow(∇) 72-hal/tow1) 72-hal/tow1) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆) 92-ano-3(∆)

Not included in Fig. 1.

Further references: [1873-pis/pat, 1884-gla, 1885-sil, 1892-lan/jah, 1895-kon, 1896-per, 02-kla-2, 16ric/shi, 19-ric/shi, 19-von, 34-lov/cam, 35-qui, 36-ipa/cor, 37-cro/sow, 37-mck/sow, 38-oco/sow, 38whi/ros, 40-tou/hen, 41-ano-1, 42-hus/kay, 43-ano, 43-ano-2, 43-pok, 43-wil, 44-ano-1, 44-can, 44-kur, 44-sch, 45-gre/vog-1, 46-gei/can, 46-gib/tho, 46-hir/fau, 47-bal/mar, 47-tsu, 48-boo/gre, 49-foe/fen, 49vve/tak, 50-kuc/tsu, 50-pet/sop, 51-ano-3, 51-rob/goo, 52-ano-4, 52-ano-5, 52-jac, 53-mul-2, 55-sop, 57cum/vog, 75-mil/wac, 77-jai/bag, 79-sol/del, 80-sur, 88-jas/nag, 89-cep/gon, 89-cep/gon-1, 95-fuj/tam-1]. cont. Landolt-Börnstein New Series IV/8E

45

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

240.00 250.00 260.00 270.00 280.00

ρ ± σ fit kg ⋅ m−3 907.23 ± 0.07 898.66 ± 0.08 890.13 ± 0.09 881.62 ± 0.10 873.11 ± 0.12

T K

290.00 293.15 298.15 300.00 310.00

ρ ± σ fit kg ⋅ m−3 864.60 ± 0.13 861.92 ± 0.14 857.66 ± 0.14 856.08 ± 0.15 847.53 ± 0.16

T K

320.00 330.00 340.00 350.00 360.00

ρ ± σ fit kg ⋅ m−3 838.93 ± 0.17 830.29 ± 0.18 821.58 ± 0.19 812.80 ± 0.20 803.94 ± 0.21 cont.

Landolt-Börnstein New Series IV/8E

46

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

(1-Methylethyl)benzene (cont.) Table 3. (cont.)

ρ ± σ fit kg ⋅ m−3

T K

T K

794.98 ± 0.21 785.91 ± 0.22 776.72 ± 0.22 767.40 ± 0.22

370.00 380.00 390.00 400.00

410.00 420.00 430.00 440.00

Propylbenzene

ρ ± σ fit kg ⋅ m−3

T K

757.94 ± 0.22 748.32 ± 0.23 738.53 ± 0.23 728.57 ± 0.23

[103-65-1]

450.00 460.00 470.00 480.00

C9H12

ρ ± σ fit kg ⋅ m−3 718.42 ± 0.23 708.07 ± 0.24 697.51 ± 0.25 686.72 ± 0.28

MW = 120.19

11

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.4386 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.7271 · 10-2 (combined temperature ranges, unweighted). T = 178.05 to 431.85 K ρ = A + BT + CT 2 + DT 3 + … 1.13425 · 103 -1.17575 1.33755 · 10-3 -1.68910 · 10-6

Coefficient A B C D

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

282.95 431.65 431.85 294.55 362.05 277.15 278.15 283.15 288.15 293.15 298.15 178.05 189.55 227.95 250.25 273.15 1)

ρexp ± 2σ est −3

kg ⋅ m

870.20 ± 1.00 739.90 ± 1.00 739.90 ± 1.00 860.50 ± 0.60 803.20 ± 0.60 875.30 ± 0.60 874.48 ± 0.60 870.20 ± 0.60 865.97 ± 0.60 861.83 ± 0.60 857.77 ± 0.60 957.35 ± 1.00 948.28 ± 1.00 915.82 ± 1.00 897.52 ± 1.00 878.62 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.20 -0.21 -0.01 -0.32 -0.54 0.12 0.13 -0.03 -0.14 -0.14 -0.07 -0.43 0.34 0.08 0.21 0.15

1883-sch-31) 1883-sch-3(✕ ) 1884-sch-6(✕ ) 1893-eyk1) 1893-eyk(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas1)

T K

288.30 296.00 311.45 335.90 349.25 372.70 403.15 273.15 293.15 313.15 293.15 298.15 293.15 298.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

866.11 ± 1.00 859.64 ± 1.00 846.89 ± 1.00 826.40 ± 1.00 814.80 ± 1.00 794.21 ± 1.00 766.06 ± 1.00 878.20 ± 0.50 861.60 ± 0.50 844.90 ± 0.50 861.91 ± 0.20 857.68 ± 0.20 861.96 ± 0.15 857.74 ± 0.15 862.00 ± 0.60 861.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.13 0.02 0.11 0.18 -0.02 -0.19 -0.90 -0.27 -0.37 -0.46 -0.06 -0.16 -0.01 -0.10 0.03 -0.67

36-mas1) 36-mas1) 36-mas1) 36-mas(✕ ) 36-mas(✕ ) 36-mas(✕ ) 36-mas1) 42-gei(✕ ) 42-gei1) 42-gei(✕ ) 43-ano-2(∇) 43-ano-2(∇) 46-for/gla( ) 46-for/gla1) 48-vog-61) 48-vog-61)

{

Not included in Fig. 1.

cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

47

Table 2. (cont.) T K

314.35 315.15 333.75 334.65 358.85 359.15 293.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

844.40 ± 0.60 843.40 ± 0.60 828.20 ± 0.60 828.00 ± 0.60 807.90 ± 0.60 807.20 ± 0.60 862.02 ± 0.10 857.78 ± 0.10

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 -0.29 0.16 0.72 1.38 0.94 0.05 -0.06

48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-61) 48-vog-6(✕ ) 49-for/ros( ) 49-for/ros( )

… …

T K

303.15 298.15 298.15 323.15 313.15 298.15 293.15 308.15

ρexp ± 2σ est −3

kg ⋅ m

853.68 ± 0.10 857.96 ± 0.15 857.95 ± 0.60 836.76 ± 0.60 845.08 ± 0.30 858.10 ± 0.20 861.97 ± 0.20 849.40 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.01 0.12 0.11 -0.23 -0.28 0.26 -0.00 -0.13

…

49-for/ros( ) 75-mil/wac(∆) 80-ric/tej1) 80-ric/tej(✕ ) 80-sur(✕ ) 81-gro-3(✕ ) 88-pau/kru-1(◆) 88-sub/rao-1(✕ )

Not included in Fig. 1.

ρ

ρ

Further references: [1892-lan/jah, 1896-zhu, 00-per, 13-dun/hil, 13-kis-2, 16-ric/shi, 19-ric/shi, 19-von, 25-gil/bea-2, 30-tim/hen, 32-gar/eva, 33-bar/cas, 35-mam-1, 37-gro/ipa, 37-loz/dya, 37-mck/sow, 37tsu/vik, 37-tzu, 38-eva-2, 39-sch/hop, 41-ano-1, 42-sch, 43-ano, 44-ano, 46-gei/can, 46-gib/tho, 46hir/fau, 48-tsc, 49-foe/fen, 49-lut, 50-bry/tur, 50-dol/lar, 53-tre, 54-khr/nov, 79-gro-7, 79-gro-8, 86pau/kru-1, 88-jas/nag, 91-ric/lau, 95-fuj/tam-1].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.) cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

48 Propylbenzene (cont.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

964.73 ± 1.55 956.10 ± 1.32 947.56 ± 1.12 939.09 ± 0.96 930.69 ± 0.82 922.34 ± 0.71 914.04 ± 0.62 905.77 ± 0.55 897.52 ± 0.49 889.29 ± 0.45

170.00 180.00 190.00 200.00 210.00 220.00 230.00 240.00 250.00 260.00

270.00 280.00 290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00

1,2,3-Trimethylbenzene

ρ ± σ fit kg ⋅ m−3

T K

881.06 ± 0.42 872.83 ± 0.40 864.58 ± 0.40 861.97 ± 0.41 857.84 ± 0.41 856.30 ± 0.42 847.99 ± 0.45 839.63 ± 0.49 831.21 ± 0.54 822.73 ± 0.59 [526-73-8]

350.00 360.00 370.00 380.00 390.00 400.00 410.00 420.00 430.00 440.00 C9H12

ρ ± σ fit kg ⋅ m−3 814.17 ± 0.64 805.52 ± 0.70 796.78 ± 0.76 787.93 ± 0.82 778.96 ± 0.88 769.86 ± 0.94 760.62 ± 1.01 751.24 ± 1.10 741.70 ± 1.20 731.99 ± 1.32 MW = 120.19

12

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 7.6719 · 10-2 (combined temperature ranges, weighted), σc,uw = 1.4480 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.10165 · 103 -6.25417 · 10-1 -2.78063 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 298.15 303.15 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

910.00 ± 0.40 894.40 ± 0.40 890.60 ± 0.40 886.60 ± 0.40 894.40 ± 0.40 894.40 ± 0.30 894.40 ± 0.30 894.40 ± 0.30 894.40 ± 0.30 894.40 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.07 -0.01 0.14 0.10 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01

40-smi/spi(✕ ) 40-smi/spi(✕ ) 40-smi/spi(✕ ) 40-smi/spi(✕ ) 44-kur(✕ ) 45-boo/gre(✕ ) 46-boo/gre(∇) 46-boo/gre(∇) 46-hir/fau(◆) 46-lam/rey(✕ )

T K

293.15 293.15 293.15 293.15 293.15 293.15 298.15 303.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

894.50 ± 0.20 894.50 ± 0.50 894.40 ± 0.40 894.40 ± 0.40 894.40 ± 0.40 894.36 ± 0.10 890.42 ± 0.10 886.50 ± 0.10 894.30 ± 0.40 894.50 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.09 0.09 -0.01 -0.01 -0.01 -0.05 -0.04 -0.00 -0.11 0.09

47-ano-1(∆) 47-boo/gre1) 47-boo/gre(✕ ) 47-boo/gre(✕ ) 48-rey/ebe(✕ ) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 50-nic/hei(✕ ) 56-ano( )

… … …

{

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

49

ρ

ρ

Further references: [09-weg, 19-von, 25-von/wie, 33-mai/sch, 37-kur/hea, 44-ano-2, 50-par/gol, 51-ano, 88-jas/nag].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 912.52 ± 0.65 904.73 ± 0.42 896.89 ± 0.33

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 894.41 ± 0.31 890.46 ± 0.29 889.00 ± 0.28

T K

310.00

ρ ± σ fit kg ⋅ m−3 881.05 ± 0.32

50

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2,4-Trimethylbenzene

C9H12

[95-63-6]

MW = 120.19

13

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.3464 · 10-1 (combined temperature ranges, weighted), σc,uw = 7.6770 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 368.15 K ρ = A + BT + CT 2 + DT 3 + … 1.08789 · 103 -6.52348 · 10-1 -2.42183 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

277.15 278.15 283.15 288.15 293.15 293.15 298.15 303.15 308.15 313.15 318.15 323.15 328.15 333.15 338.15 343.15 348.15 353.15 358.15 363.15 368.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

888.80 ± 0.60 887.98 ± 0.60 884.09 ± 0.60 880.16 ± 0.60 876.20 ± 0.60 877.80 ± 2.00 872.13 ± 0.60 868.15 ± 0.60 864.08 ± 0.60 860.03 ± 0.60 855.91 ± 0.60 851.75 ± 0.60 847.53 ± 0.60 843.39 ± 0.60 839.33 ± 0.60 835.35 ± 0.60 831.08 ± 0.60 826.92 ± 0.60 822.69 ± 1.00 818.40 ± 1.00 814.34 ± 1.00 876.70 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.31 0.28 0.33 0.35 0.36 1.96 0.27 0.28 0.21 0.17 0.08 -0.04 -0.21 -0.29 -0.28 -0.17 -0.34 -0.39 -0.50 -0.65 -0.56 0.86

1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 33-azi/bha1)

T K

303.15 313.15 323.15 333.15 348.15 293.15 293.15 293.15 293.15 298.15 303.15 293.15 303.15 313.15 293.15 273.15 288.15 303.15 298.15 303.15 298.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

868.50 ± 0.40 861.10 ± 0.40 853.00 ± 0.40 845.70 ± 0.40 834.10 ± 0.40 876.00 ± 0.30 875.90 ± 0.30 876.10 ± 0.30 875.80 ± 0.10 871.78 ± 0.10 867.80 ± 0.10 875.40 ± 0.60 867.34 ± 0.60 859.37 ± 0.60 875.80 ± 0.20 891.88 ± 0.40 879.79 ± 0.40 867.70 ± 0.40 871.85 ± 0.15 867.96 ± 0.30 871.60 ± 0.20 871.90 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.63 1.24 1.21 2.02 2.68 0.16 0.06 0.26 -0.04 -0.08 -0.07 -0.44 -0.53 -0.49 -0.04 0.25 -0.02 -0.17 -0.01 0.09 -0.26 0.04

33-azi/bha1) 33-azi/bha(✕ ) 33-azi/bha(✕ ) 33-azi/bha1) 33-azi/bha1) 46-boo/gre(✕ ) 46-boo/gre(✕ ) 46-hir/fau(✕ ) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 49-qua1) 49-qua1) 49-qua(✕ ) 50-nic/hei(∆) 59-tim/hen(✕ ) 59-tim/hen(✕ ) 59-tim/hen1) 75-mil/wac( ) 76-abs/tut(✕ ) 87-wil/ing(∇) 92-com/fra-2(◆)

… … …

{

Not included in Fig. 1.

Further references: [1892-lan/jah, 1893-sch, 1894-bru-1, 00-per, 10-bir, 16-ric/shi, 19-von, 33-mai/sch, 34-lov/cam, 35-mam-1, 37-kur/hea, 43-ano, 44-kur, 44-sch, 45-ano-8, 45-gre/vog-1, 46-ano-4, 46-ebe-1, 49-foe/fen, 56-ano].

cont.

Landolt-Börnstein New Series IV/8E

51

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 894.10 ± 0.68 886.25 ± 0.45 878.34 ± 0.33 875.84 ± 0.31 871.86 ± 0.30

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 870.39 ± 0.30 862.39 ± 0.35 854.34 ± 0.43 846.24 ± 0.55 838.10 ± 0.68

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 829.90 ± 0.80 821.66 ± 0.91 813.37 ± 0.98 805.03 ± 1.02

52

2.1 Alkylbenzenes (CnH2n-6), C6 - C10 1,3,5-Trimethylbenzene

[108-67-8]

C9H12

MW = 120.19

14

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.0579 · 10-1 (combined temperature ranges, weighted), σc,uw = 8.5466 · 10-2 (combined temperature ranges, unweighted). T = 293.15 to 438.15 K ρ = A + BT + CT 2 + DT 3 + … 1.08488 · 103 -6.58999 · 10-1 -3.09524 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

282.95 437.65 437.65 438.15 277.15 278.15 283.15 288.15 293.15 298.15 303.15 308.15 313.15 318.15 323.15 328.15 333.15 338.15 343.15 348.15 353.15 358.15 363.15 368.15 293.15 303.15 1)

ρexp ± 2σ est −3

kg ⋅ m

869.40 ± 2.00 737.20 ± 2.00 737.20 ± 2.00 737.20 ± 1.70 876.80 ± 2.00 875.98 ± 2.00 871.90 ± 2.00 867.67 ± 2.00 863.62 ± 2.00 859.46 ± 2.00 855.50 ± 2.00 851.45 ± 2.00 847.43 ± 2.00 843.34 ± 2.00 839.20 ± 2.00 835.02 ± 2.00 830.71 ± 2.00 826.48 ± 2.00 822.25 ± 2.00 818.10 ± 2.00 813.71 ± 2.00 809.52 ± 2.00 805.27 ± 2.00 801.16 ± 2.00 863.80 ± 0.40 855.70 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-4.24 0.02 0.02 0.48 -1.66 -1.65 -1.57 -1.62 -1.48 -1.43 -1.16 -0.97 -0.73 -0.55 -0.40 -0.28 -0.27 -0.17 -0.05 0.17 0.16 0.36 0.52 0.84 -1.30 -0.96

1883-sch-31) 1883-sch-3(✕ ) 1883-sch-3(✕ ) 1884-sch-6(✕ ) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 33-azi/bha1) 33-azi/bha1)

T K

313.15 323.15 333.15 358.15 293.15 293.15 293.15 298.15 303.15 293.15 353.15 293.15 303.15 313.15 323.15 333.15 343.15 353.15 300.15 313.15 298.15 313.15 298.15 293.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

847.60 ± 0.40 839.30 ± 0.40 831.00 ± 0.40 815.80 ± 0.40 865.10 ± 0.20 865.10 ± 0.20 865.16 ± 0.10 861.09 ± 0.10 857.05 ± 0.10 862.00 ± 1.50 813.00 ± 2.00 859.80 ± 0.50 852.00 ± 0.50 844.00 ± 0.50 836.50 ± 0.50 828.50 ± 0.50 821.70 ± 0.60 813.50 ± 0.60 858.47 ± 0.30 847.33 ± 0.30 859.95 ± 0.15 848.90 ± 0.30 860.64 ± 0.10 865.18 ± 0.20 861.11 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.56 -0.30 0.02 6.64 0.00 0.00 0.06 0.20 0.39 -3.10 -0.55 -5.30 -4.66 -4.16 -3.10 -2.48 -0.60 -0.05 -0.73 -0.83 -0.94 0.74 -0.25 0.08 0.22

33-azi/bha(✕ ) 33-azi/bha(✕ ) 33-azi/bha(✕ ) 33-azi/bha1) 45-ano-8(◆) 47-ano-4(∇) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 50-boe/ned1) 50-boe/ned(✕ ) 58-pan/mak-11) 58-pan/mak-11) 58-pan/mak-11) 58-pan/mak-11) 58-pan/mak-11) 58-pan/mak-1(✕ ) 58-pan/mak-1(✕ ) 73-sub/kon1) 73-sub/kon(✕ ) 75-mil/wac(∆) 80-sur(✕ ) 85-alm/aww( ) 87-eas/woo-2(✕ ) 87-eas/woo-2(✕ )

{ { {

…

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

53

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00 310.00 320.00 330.00

ρ ± σ fit kg ⋅ m−3 867.74 ± 0.16 865.10 ± 0.14 860.89 ± 0.15 859.32 ± 0.16 850.85 ± 0.31 842.31 ± 0.54 833.70 ± 0.85

T K

340.00 350.00 360.00 370.00 380.00 390.00 400.00

ρ ± σ fit kg ⋅ m−3 825.04 ± 1.20 816.31 ± 1.57 807.53 ± 1.94 798.68 ± 2.28 789.77 ± 2.56 780.79 ± 2.77 771.76 ± 2.87

T K

410.00 420.00 430.00 440.00 450.00

ρ ± σ fit kg ⋅ m−3 762.66 ± 2.86 753.50 ± 2.69 744.28 ± 2.36 735.00 ± 1.85 725.65 ± 1.21

cont.

Landolt-Börnstein New Series IV/8E

54

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,3,5-Trimethylbenzene (cont) Further references: [1880-bru-3, 1884-gla, 1892-lan/jah, 1893-sch, 1896-luc, 00-per, 02-pat, 09-weg, 10-von/pet, 11-von/mul, 12-mor/dag, 16-ric/shi, 19-ric/shi, 19-von, 30-fis/kle, 32-gar/eva, 32-loc, 33mai/sch, 33-tis, 34-lov/cam, 34-war/ful, 35-mam, 36-par, 37-kur/hea, 37-loz/dya, 43-ano-4, 43-pok, 44boo/per, 44-kur, 45-gre/vog-1, 46-boo/gre, 46-gib/tho, 46-hir/fau, 49-foe/fen, 50-nic/hei, 50-tei/gor, 51chi, 56-lib/pry-2, 61-shi/hil, 67-dei, 75-hsu/cle, 76-abs/tut, 79-wil/far, 82-dig/jad, 86-tar/dia-1, 87yad/yad, 88-jas/nag, 91-ric/lau, 95-aic/jun].

Butylbenzene

[104-51-8]

C10H14

MW = 134.22

15

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.3963 · 10-1 (combined temperature ranges, weighted), σc,uw = 9.7102 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 360.45 K ρ = A + BT + CT 2 + DT 3 + … 1.08437 · 103 -7.64957 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 288.15 303.15 298.15 293.15 293.15 293.15 314.15 314.15 334.35 334.75 359.65 360.45 1)

ρexp ± 2σ est kg ⋅ m−3

876.93 ± 0.50 864.73 ± 0.50 852.43 ± 0.50 856.10 ± 0.20 860.25 ± 0.30 860.10 ± 0.40 859.50 ± 0.60 844.40 ± 1.00 844.20 ± 1.00 828.30 ± 1.00 828.10 ± 1.00 808.30 ± 1.00 808.10 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.51 0.78 -0.04 -0.20 0.13 -0.02 -0.62 0.34 0.14 -0.31 -0.20 -0.95 -0.54

28-tim/mar(✕ ) 28-tim/mar(✕ ) 28-tim/mar(✕ ) 33-bar/cas( ) 44-boo/per(✕ ) 48-vog-61) 48-vog-61) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ )

{

T K

293.15 298.15 303.15 293.15 293.15 298.15 298.15 298.15 298.15 323.15 298.15 298.15 298.15

ρexp ± 2σ est kg ⋅ m−3

860.11 ± 0.10 856.05 ± 0.10 852.16 ± 0.10 860.15 ± 0.35 860.15 ± 0.25 856.27 ± 0.20 856.40 ± 0.30 856.40 ± 0.30 857.40 ± 0.67 837.00 ± 0.67 856.40 ± 0.20 856.40 ± 0.20 855.95 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.01 -0.25 -0.31 0.03 0.03 -0.03 0.10 0.10 1.10 -0.17 0.10 0.10 -0.35

… … …

49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 50-bry/tur(✕ ) 53-tre(✕ ) 75-mil/wac(∇) 79-gro-9(✕ ) 79-gro(✕ ) 80-ric/tej1) 80-ric/tej(✕ ) 81-gro-4(∆) 81-gro-8(◆) 88-jas/nag(✕ )

Not included in Fig. 1.

Further references: [1876-rad, 1895-kon, 04-kla, 12-von/deu-1, 25-gil/bea-2, 29-boe, 34-lov/cam, 35mam-1, 38-eva-2, 39-dya/loz, 39-loz/dia, 39-sch/hop, 42-sch, 43-hen/aus, 45-gre/vog-1, 45-mat/gro, 46boo/gre, 46-kar/lam, 48-tsc, 49-bir/dea, 49-boo/hen, 49-foe/fen, 50-kuc/tsu, 50-tsu/sim, 52-ano-8, 53sid/tsu, 56-ano].

cont.

Landolt-Börnstein New Series IV/8E

55

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 877.83 ± 0.16 870.18 ± 0.19 862.53 ± 0.28 860.12 ± 0.32 856.30 ± 0.37

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 854.88 ± 0.40 847.23 ± 0.51 839.58 ± 0.64 831.93 ± 0.76 824.28 ± 0.89

T K

350.00 360.00 370.00

ρ ± σ fit kg ⋅ m−3 816.63 ± 1.01 808.99 ± 1.14 801.34 ± 1.26

56

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2-Diethylbenzene

[135-01-3]

C10H14

MW = 134.22

16

Table 1. Fit with estimated B coefficient for 7 accepted points. Deviation σw = 0.123. Coefficient ρ = A + BT A 1114.47 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.15 288.15 295.15 293.15 295.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

-15.35 866.2 ± 8.0 -15.95 868.0 ± 8.0 1.15 879.5 ± 1.5 -13.95 866.0 ± 6.0 1.15 879.5 ± 1.5 -0.95 879.0 ± 1.0 0.55 880.5 ± 1.0 0.55 880.50 ± 0.30

T K

1888-vos-11) 33-hal1) 36-fri/bes1) 37-kur/hea1) 44-gre-21) 46-kar/ser1) 48-bir1) 49-bir/dea

293.15 298.15 303.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

879.94 ± 0.10 875.90 ± 0.10 871.95 ± 0.10 879.7 ± 0.6 880.5 ± 0.6 883.7 ± 3.0 879.6 ± 1.0 879.6 ± 0.8

ρexp − ρcalc Ref. kg ⋅ m−3

-0.01 -0.05 -0.00 -0.25 0.55 3.75 -0.35 -0.35

49-for/ros 49-for/ros 49-for/ros 50-nic/hei 51-ano-3 52-ber/res1) 57-els/str1) 57-els/str-1

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00

ρexp ± 2σ est kg ⋅ m−3

882.5 ± 0.4 880.0 ± 0.3 876.0 ± 0.1 866.5 ± 0.6

1,3-Diethylbenzene

[141-93-5]

C10H14

MW = 134.22

17

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.5531 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.2229 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.10415 · 103 -8.19033 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

57

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 298.15 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

879.70 ± 2.00 857.20 ± 2.00 864.00 ± 0.40 863.90 ± 0.40 864.10 ± 0.40 864.10 ± 0.25 864.10 ± 0.40 863.90 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.73 -2.75 -0.05 -0.15 0.05 0.05 0.05 -0.15

27-cop/rei(✕ ) 27-cop/rei1) 34-war/ful(◆) 44-gre-2(✕ ) 46-ano-8(✕ ) 46-gib/tho(∆) 48-bir(✕ ) 48-boo/gre( )

{

T K

293.15 293.15 298.15 303.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

864.10 ± 0.40 863.92 ± 0.10 859.91 ± 0.10 855.88 ± 0.10 863.80 ± 0.40 864.00 ± 0.40 863.80 ± 0.40 865.60 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.05 -0.13 -0.04 0.02 -0.25 -0.05 -0.25 1.55

49-bir/dea(✕ ) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 51-ano-3(✕ ) 51-ano-3(∇) 51-kut/nic(✕ ) 63-ano-3(✕ )

… … …

Not included in Fig. 1.

ρ

ρ

Further references: [1888-vos, 34-lov/cam, 36-ipa/pin, 37-kur/hea, 37-tsu/vik, 37-tzu, 48-bal/mar, 52ber/res].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

58

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,3-Diethylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

883.01 ± 2.10 874.82 ± 1.54 866.63 ± 0.60

270.00 280.00 290.00

293.15 298.15 300.00

1,4-Diethylbenzene

ρ ± σ fit kg ⋅ m−3

T K

864.05 ± 0.35 859.95 ± 0.11 858.44 ± 0.09

[105-05-5]

310.00

C10H14

ρ ± σ fit kg ⋅ m−3 850.25 ± 0.70

MW = 134.22

18

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.1615 (combined temperature ranges, weighted), σc,uw = 2.5981 · 10-1 (combined temperature ranges, unweighted). T = 287.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.11853 · 103 -8.73090 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.35 287.15 289.35 289.45 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

864.50 ± 1.00 867.50 ± 1.00 867.90 ± 3.00 867.80 ± 3.00 862.15 ± 0.30 862.10 ± 0.40 861.90 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.35 -0.32 2.00 1.99 -0.43 -0.48 -0.68

1893-eyk(✕ ) 03-kla/kei-1(✕ ) 19-von(✕ ) 19-von(✕ ) 44-boo/per( ) 46-ano(◆) 49-bir/dea(∇)

{

T K

293.15 298.15 303.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

861.94 ± 0.10 857.92 ± 0.10 854.00 ± 0.10 861.90 ± 0.40 862.00 ± 0.40 862.20 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.64 -0.30 0.15 -0.68 -0.58 -0.38

… … …

49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 51-ano(✕ ) 51-kut/nic(✕ ) 56-ano(∆)

Not included in Fig. 1.

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00

ρ ± σ fit kg ⋅ m−3 874.06 ± 2.00 865.33 ± 1.65

T K

293.15 298.15

ρ ± σ fit kg ⋅ m−3 862.58 ± 0.61 858.22 ± 0.07

T K

300.00 310.00

ρ ± σ fit kg ⋅ m−3 856.60 ± 0.08 847.87 ± 4.00 cont.

Landolt-Börnstein New Series IV/8E

59

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Further references: [34-lov/cam, 34-war/ful, 37-kur/hea, 38-oco/sow, 46-kar/ser, 47-bal/mar, 52ber/res].

(1,1-Dimethylethyl)benzene

[98-06-6]

C10H14

MW = 134.22

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.6993 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.8481 · 10-2 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 363.85 K ρ = A + BT + CT 2 + DT 3 + … 1.10930 · 103 -8.28098 · 10-1 cont.

Landolt-Börnstein New Series IV/8E

19

60

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

(1,1-Dimethylethyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 282.55 293.15 304.65 314.55 325.05 340.65 348.75 363.85 293.15

−3

kg ⋅ m

882.80 ± 0.50 875.20 ± 0.50 866.40 ± 0.50 857.00 ± 0.50 849.00 ± 0.50 840.30 ± 0.50 827.30 ± 0.50 820.40 ± 0.50 807.70 ± 0.50 867.10 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.31 -0.13 -0.15 -0.02 0.17 0.17 0.09 -0.11 -0.30 0.55

16-byg(✕ ) 16-byg(✕ ) 16-byg1) 16-byg(✕ ) 16-byg(✕ ) 16-byg(✕ ) 16-byg(✕ ) 16-byg(✕ ) 16-byg(✕ ) 19-ric/shi(∇)

T K

293.15 298.15 293.15 293.15 303.15 293.15 298.15 303.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

867.10 ± 0.30 862.30 ± 0.40 866.50 ± 0.20 866.50 ± 0.20 858.20 ± 0.40 866.48 ± 0.10 862.38 ± 0.10 858.32 ± 0.10 862.05 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.55 -0.11 -0.05 -0.05 -0.07 -0.07 -0.03 0.05 -0.36

20-ric/dav(✕ ) 37-mck/sow(✕ ) 43-ano-3( ) 46-ano(∆) 47-leg(✕ ) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 88-jas/nag(◆)

{

… … …

Not included in Fig. 1.

ρ

ρ

1)

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

61

Further references: [1888-sch-1, 16-ric/shi, 30-huf/par-1, 34-lov/cam, 35-gro/ipa, 36-ipa/cor, 37kur/hea, 37-smi, 38-hus/fox, 40-tou/hen, 43-hen/aus, 43-hen/kur, 45-gre/vog-1, 46-ber/bon, 46-bue/kar, 46-hus/bar, 49-bir/dea, 49-foe/fen, 53-hus/van, 53-rod/bel].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

885.72 ± 0.60 877.44 ± 0.39 869.16 ± 0.30 866.55 ± 0.28 862.41 ± 0.28

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

T K

860.88 ± 0.28 852.59 ± 0.33 844.31 ± 0.42 836.03 ± 0.51 827.75 ± 0.57

300.00 310.00 320.00 330.00 340.00

1,2-Dimethyl-3-ethyllbenzene

[933-98-2]

T K

350.00 360.00 370.00

C10H14

ρ ± σ fit kg ⋅ m−3 819.47 ± 0.59 811.19 ± 0.60 802.91 ± 0.70

MW = 134.22

20

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.045. Coefficient ρ = A + BT A 1126.59 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

891.2 ± 1.0 892.0 ± 0.4 892.00 ± 0.30 892.07 ± 0.20

ρexp − ρcalc Ref. kg ⋅ m−3

-0.87 -0.07 -0.07 -0.00

46-ano-21) 48-bir 49-bir/dea 49-bir/dea

Not included in calculation of linear coefficients

Table 3. Recommended values. T K 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

894.6 ± 0.2 892.1 ± 0.2 888.1 ± 0.2

T K

298.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

888.12 ± 0.20 892.0 ± 0.4 892.10 ± 0.20

ρexp − ρcalc Ref. kg ⋅ m−3

0.05 -0.07 0.03

49-bir/dea 51-ano 56-ano

62

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2-Dimethyl-4-ethylbenzene

[934-80-5]

C10H14

MW = 134.22

21

Table 1. Fit with estimated B coefficient for 10 accepted points. Deviation σw = 0.329 . Coefficient ρ = A + BT A 1108.84 B -0.800 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 288.20 288.15 293.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

874.0 ± 0.6 877.6 ± 0.6 878.2 ± 0.6 873.0 ± 0.6 870.4 ± 4.0 879.2 ± 5.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.32 -0.68 -0.12 -1.32 -3.92 4.88

T K

21-von/zie 21-von/zie 21-von/zie 21-von/zie 24-kru1) 34-war/ful1)

293.15 293.15 293.15 293.15 298.15 293.15

ρexp ± 2σ est kg ⋅ m−3

874.3 ± 0.4 874.1 ± 0.6 874.10 ± 0.30 874.50 ± 0.20 870.56 ± 0.20 874.2 ± 0.4

ρexp − ρcalc Ref. kg ⋅ m−3

-0.02 -0.22 -0.22 0.18 0.24 -0.12

46-ano-2 48-bir 49-bir/dea 49-bir/dea 49-bir/dea 56-ano

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

884.8 ± 0.8 876.8 ± 0.4 874.3 ± 0.3 870.3 ± 0.4

1,3-Dimethyl-2-ethylbenzene

[2870-04-4]

C10H14

MW = 134.22

22

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.045. Coefficient ρ = A + BT A 1124.96 B -0.800 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 298.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

890.5 ± 0.4 890.50 ± 0.30 890.41 ± 0.20 886.40 ± 0.20 890.5 ± 0.4 891.5 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

0.06 0.06 -0.03 -0.04 0.06 1.06

48-bir 49-bir/dea 49-bir/dea 49-bir/dea 51-ano 54-sch/cor1)

Not included in calculation of linear coefficients

cont. Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

63

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

893.0 ± 0.2 890.4 ± 0.2 886.4 ± 0.2

290.00 293.15 298.15

1,3-Dimethyl-4-ethylbenzene

[874-41-9]

C10H14

MW = 134.22

23

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.095 . Coefficient ρ = A + BT 1110.77 A -0.800 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 289.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

876.3 ± 6.0 877.2 ± 3.0 875.9 ± 0.6 875.90 ± 0.30

ρexp − ρcalc Ref. kg ⋅ m−3

0.05 -2.25 -0.35 -0.35

T K

1886-ans-11) 03-kla/kei1) 48-bir 49-bir/dea

293.15 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

876.25 ± 0.10 872.30 ± 0.10 876.2 ± 0.4

ρexp − ρcalc Ref. kg ⋅ m−3

0.00 0.05 -0.05

49-bir/dea 49-bir/dea 55-ano-7

Not included in calculation of linear coefficients

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

878.8 ± 0.3 876.2 ± 0.1 872.2 ± 0.2

1,3-Dimethyl-5-ethylbenzene

[934-74-7]

C10H14

MW = 134.22

Table 1. Fit with estimated B coefficient for 9 accepted points. Deviation σw = 0.175 . Coefficient ρ = A + BT 1099.20 A -0.800 B

cont.

Landolt-Börnstein New Series IV/8E

24

64

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,3-Dimethyl-5-ethylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

864.4 ± 0.6 861.0 ± 3.0 864.8 ± 0.4 865.0 ± 0.4 864.4 ± 0.6

-0.28 -3.68 0.12 0.32 -0.28

T K

1874-jac 1878-vro1) 46-ano-2 47-ano-2 48-bir

293.15 293.15 298.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

864.40 ± 0.30 864.77 ± 0.20 860.76 ± 0.20 864.5 ± 0.4 864.5 ± 0.4

ρexp − ρcalc Ref. kg ⋅ m−3

-0.28 0.09 0.08 -0.18 -0.18

49-bir/dea 49-bir/dea 49-bir/dea 52-ano-5 52-ano-14

Not included in calculation of linear coefficients

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

867.2 ± 0.3 864.7 ± 0.2 860.7 ± 0.3

290.00 293.15 298.15

1,4-Dimethyl-2-ethylbenzene

[1758-88-9]

C10H14

MW = 134.22

25

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.4405 (combined temperature ranges, weighted), σc,uw = 3.2315 · 10-1 (combined temperature ranges, unweighted). T = 290.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.14454 · 103 -9.09709 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

290.15 290.15 295.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

882.40 ± 2.00 882.40 ± 3.00 875.00 ± 1.00 877.70 ± 0.60 877.15 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.81 1.81 -1.04 -0.16 -0.71

03-kla/kei(✕ ) 03-kla/kei-1(✕ ) 18-fre/fle(✕ ) 48-bir(◆) 49-bir/dea( )

…

T K

293.15 298.15 303.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

877.70 ± 0.50 873.15 ± 0.20 868.60 ± 0.40 877.70 ± 0.60 876.80 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.16 -0.16 -0.16 -0.16 -1.06

… … {

49-bir/dea( ) 49-bir/dea( ) 49-les/sur( ) 51-ano(∇) 57-ano-4(∆)

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

65

ρ

ρ

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 880.73 ± 2.60 877.86 ± 0.58

T K

298.15 300.00

ρ ± σ fit kg ⋅ m−3 873.31 ± 0.51 871.63 ± 0.71

T K

310.00

ρ ± σ fit kg ⋅ m−3 862.53 ± 0.52

66

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

Methyl(1-methylethyl)benzene

[25155-15-1]

C10H14

MW = 134.22

26

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.2588 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.3319 · 10-1 (combined temperature ranges, unweighted). T = 277.15 to 449.35 K ρ = A + BT + CT 2 + DT 3 + … 1.10374 · 103 -8.42323 · 10-1

ρ

ρ

Coefficient A B

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

67

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

449.35 293.15 277.15 278.15 283.15 288.15 293.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

−3

kg ⋅ m

724.80 ± 2.00 856.90 ± 2.00 870.10 ± 2.00 869.28 ± 2.00 865.10 ± 2.00 861.08 ± 2.00 857.04 ± 2.00

-0.44 0.09 -0.19 -0.17 -0.14 0.06 0.23

… { { { { {

1884-sch-6( ) 1886-bru(∆) 1896-per( ) 1896-per( ) 1896-per( ) 1896-per( ) 1896-per( )

Not included in Fig. 1.

T K

298.15 288.85 327.65 351.55 425.35 293.15

ρexp ± 2σ est −3

kg ⋅ m

853.28 ± 2.00 859.70 ± 2.50 827.90 ± 2.50 808.60 ± 2.50 745.60 ± 2.50 856.16 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.68 -0.73 0.15 0.98 0.14 -0.65

{

1896-per( ) 05-bol/guy(◆) 05-bol/guy(◆) 05-bol/guy(◆) 05-bol/guy(◆) 20-har/cla(∇)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15 300.00 310.00 320.00

ρ ± σ fit kg ⋅ m−3

T K

876.31 ± 2.07 867.89 ± 2.07 859.47 ± 2.09 856.81 ± 2.11 852.60 ± 2.13 851.04 ± 2.14 842.62 ± 2.21 834.20 ± 2.30

330.00 340.00 350.00 360.00 370.00 380.00 390.00 400.00

1-Methyl-2-(1-methylethyl)benzene

ρ ± σ fit kg ⋅ m−3

T K

825.77 ± 2.39 817.35 ± 2.49 808.93 ± 2.58 800.50 ± 2.67 792.08 ± 2.74 783.66 ± 2.80 775.23 ± 2.84 766.81 ± 2.85

[527-84-4]

410.00 420.00 430.00 440.00 450.00 460.00

C10H14

ρ ± σ fit kg ⋅ m−3 758.39 ± 2.83 749.96 ± 2.78 741.54 ± 2.70 733.12 ± 2.59 724.69 ± 2.45 716.27 ± 2.28

MW = 134.22

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.2244 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.2916 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 295.15 K ρ = A + BT + CT 2 + DT 3 + … 1.05831 · 103 -6.20588 · 10-1

Further references: [24-eis/sch, 24-eis/sch-2, 34-lov/cam, 35-des-3].

cont.

Landolt-Börnstein New Series IV/8E

27

68

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Methyl-2-(1-methylethyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

295.15 273.15 295.15 273.15 289.30 293.15 293.15

-1.28 1.31 -1.24 1.31 0.13 -0.38 0.22

13-sab/mur-1(✕ ) 13-sab/mur-4(✕ ) 13-sab/mur-4(✕ ) 15-sab/mur(✕ ) 19-von(✕ ) 19-von(✕ ) 48-bir( )

{

T K

293.15 293.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

876.60 ± 0.30 876.60 ± 0.20 876.40 ± 0.30 877.20 ± 0.80 876.60 ± 0.20 876.20 ± 0.60 875.00 ± 1.50

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.22 0.22 0.02 0.82 0.22 -0.18 -1.38

49-bir/dea(∇) 50-ano-1(∆) 50-boo/gre(◆) 50-pet/sop(✕ ) 51-ano( ) 52-ano-5(✕ ) 55-sop(✕ )

…

Not included in Fig. 1.

ρ

ρ

1)

873.86 ± 1.50 890.10 ± 1.00 873.90 ± 1.00 890.10 ± 1.00 878.90 ± 1.00 876.00 ± 1.00 876.60 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

69

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

890.75 ± 4.00 884.54 ± 3.50 878.34 ± 0.79

270.00 280.00 290.00

293.15 298.15 300.00

1-Methyl-3-(1-methylethyl)benzene

ρ ± σ fit kg ⋅ m−3

T K

876.38 ± 0.57 873.28 ± 3.95 872.13 ± 4.30

[535-77-3]

310.00

C10H14

ρ ± σ fit kg ⋅ m−3 865.92 ± 6.00

MW = 134.22

28

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.7300 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.6697 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 299.65 K ρ = A + BT + CT 2 + DT 3 + … 1.08374 · 103 -7.60014 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

289.15 295.15 295.15 290.20 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

863.00 ± 1.00 858.86 ± 1.50 858.90 ± 0.60 862.80 ± 1.00 860.00 ± 1.00 861.90 ± 1.00 863.10 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.98 -0.56 -0.52 -0.38 -0.94 0.96 2.16

1880-cla-1(✕ ) 13-sab/mur-1(✕ ) 13-sab/mur-4(∆) 19-von(✕ ) 19-von(✕ ) 24-eis/sch-2(✕ ) 24-eis/sch-21)

T K

273.15 293.15 293.15 299.65 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

876.20 ± 0.60 861.10 ± 0.60 860.60 ± 0.60 858.40 ± 3.00 861.00 ± 0.20 861.00 ± 0.20

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.06 0.16 -0.34 2.40 0.06 0.06

30-lac(∇) 30-lac(∇) 30-ric/wol-1(◆) 36-kaz/pla(✕ ) 48-bir( ) 51-ano-3( )

…

Not included in Fig. 1.

Further references: [19-eyk, 24-eis/sch, 34-lov/cam, 49-bir/dea].

cont.

Landolt-Börnstein New Series IV/8E

{

70

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

ρ

ρ

1-Methyl-3-(1-methylethyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 878.53 ± 3.00 870.93 ± 2.69 863.33 ± 0.88

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 860.94 ± 0.66 857.14 ± 2.05 855.73 ± 3.53

T K

310.00

ρ ± σ fit kg ⋅ m−3 848.13 ± 5.00

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10 1-Methyl-4-(1-methylethyl)benzene

C10H14

[99-87-6]

71 MW = 134.22

29

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 9.1670 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.1773 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 443.15 K ρ = A + BT + CT 2 + DT 3 + … 1.06675 · 103 -6.21453 · 10-1 -3.21513 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 277.15 278.15 283.15 288.15 293.15 298.15 281.05 288.85 327.65 351.55 425.35 298.15 318.15 343.15 363.15 277.15 291.15 294.05 298.15 313.15 318.15 323.15 333.15 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

873.20 ± 1.00 870.10 ± 0.60 869.30 ± 0.60 865.20 ± 0.60 861.10 ± 0.60 857.20 ± 0.60 853.30 ± 0.60 866.98 ± 0.60 859.70 ± 1.00 827.90 ± 1.00 808.60 ± 1.00 745.60 ± 1.00 852.64 ± 0.50 836.54 ± 0.50 816.22 ± 0.50 799.61 ± 0.50 870.11 ± 0.60 858.73 ± 0.60 856.41 ± 0.60 853.39 ± 0.60 839.68 ± 0.60 835.86 ± 0.60 832.03 ± 0.60 824.37 ± 0.60 857.90 ± 0.30 856.70 ± 0.20 857.30 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.18 0.28 0.28 0.19 0.11 0.25 0.41 0.28 -0.72 -0.72 0.05 1.35 -0.25 0.04 0.58 0.94 0.29 0.17 0.19 0.50 -0.94 -0.64 -0.33 0.34 0.95 -0.25 0.35

1878-kra-1(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per1) 1896-per1) 1896-per1) 00-per(✕ ) 05-bol/guy1) 05-bol/guy(✕ ) 05-bol/guy(✕ ) 05-bol/guy(✕ ) 31-bre1) 31-bre(✕ ) 31-bre(✕ ) 31-bre(✕ ) 35-lef/lef(✕ ) 35-lef/lef1) 35-lef/lef1) 35-lef/lef1) 35-lef/lef(✕ ) 35-lef/lef(✕ ) 35-lef/lef(✕ ) 35-lef/lef(✕ ) 43-ano-3(∆) 46-gib/tho( ) 48-bir( )

…

{

T K

293.15 293.15 273.15 277.15 281.15 283.15 288.15 293.15 308.15 323.15 373.15 383.15 393.15 403.15 413.15 423.15 433.15 443.15 449.15 293.15 298.15 303.15 308.15 313.15 318.15 323.15

ρexp ± 2σ est −3

kg ⋅ m

857.50 ± 0.50 857.30 ± 0.30 873.20 ± 1.00 870.10 ± 1.00 867.00 ± 1.00 865.40 ± 1.00 861.90 ± 1.00 857.10 ± 1.00 843.50 ± 1.00 831.00 ± 1.00 788.80 ± 1.00 780.50 ± 1.00 771.80 ± 1.00 763.50 ± 1.00 755.00 ± 1.00 746.60 ± 1.00 736.10 ± 1.00 729.90 ± 1.00 725.10 ± 1.00 856.10 ± 0.30 852.10 ± 0.30 848.60 ± 0.30 844.50 ± 0.30 840.60 ± 0.30 837.40 ± 0.30 832.60 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.55 0.35 0.18 0.28 0.38 0.39 0.91 0.15 -1.22 -1.36 -1.29 -0.95 -0.93 -0.46 -0.12 0.38 -1.15 1.68 2.33 -0.85 -0.79 -0.21 -0.22 -0.02 0.90 0.24

49-bir/dea1) 49-bir/dea(∇) 64-str(✕ ) 64-str1) 64-str1) 64-str1) 64-str1) 64-str1) 64-str1) 64-str1) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str(✕ ) 64-str1) 90-rib/ber(◆) 90-rib/ber(◆) 90-rib/ber(◆) 90-rib/ber(◆) 90-rib/ber(◆) 90-rib/ber(◆) 90-rib/ber(◆)

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

72

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Methyl-4-(1-methylethyl)benzene (cont.)

ρ

ρ

Further references: [1892-lan/jah, 05-wal/hut, 13-blu/zei, 13-sab/mur-1, 13-sab/mur-4, 16-ker, 18wal/ber, 19-von, 20-har/cla, 23-kar, 24-eis/sch, 24-eis/sch-2, 29-boe-1, 29-lac, 29-zel/lev-1, 30-ric/wol-1, 32-dup/dau, 32-vor/fis, 34-lov/cam, 34-war/ful, 35-qui, 36-par, 37-loz/dya, 37-mul, 41-wel/hen, 42fuj/oha, 43-hen/kur, 43-pok, 46-ano-8, 47-ano-1, 47-bal/mar, 47-son/bhu, 47-son/bhu-1, 49-foe/fen, 49tad/nis, 50-pet/sop, 50-tei/gor, 51-ano-3, 51-her, 51-rob/goo, 52-tis/sum, 52-vor, 53-mul-2, 54-dol/nov, 54-imo/hua, 54-oco/gol, 55-sop, 59-rom/gri, 60-mat/sai, 61-tom/zac, 61-tom/zac-1].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

73

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

875.52 ± 0.80 867.54 ± 0.61 859.49 ± 0.48 856.95 ± 0.46 852.89 ± 0.43 851.38 ± 0.42 843.21 ± 0.41

270.00 280.00 290.00 293.15 298.15 300.00 310.00

320.00 330.00 340.00 350.00 360.00 370.00 380.00

(1-Methylpropyl)benzene

ρ ± σ fit kg ⋅ m−3 834.97 ± 0.44 826.66 ± 0.50 818.29 ± 0.58 809.86 ± 0.67 801.36 ± 0.77 792.80 ± 0.88 784.18 ± 0.97

[135-98-8]

T K

390.00 400.00 410.00 420.00 430.00 440.00 450.00

C10H14

ρ ± σ fit kg ⋅ m−3 775.49 ± 1.04 766.73 ± 1.10 757.91 ± 1.12 749.03 ± 1.10 740.08 ± 1.05 731.07 ± 0.95 721.99 ± 0.81

MW = 134.22

30

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.1460 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.7658 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 318.15 K ρ = A + BT + CT 2 + DT 3 + … 7.59455 · 102 1.46229 -3.79532 · 10-3

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 278.15 283.15 288.15 293.15 303.15 308.15 313.15 318.15 323.15 298.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

876.30 ± 2.00 872.50 ± 2.00 868.70 ± 2.00 864.40 ± 2.00 860.60 ± 2.00 856.30 ± 2.00 848.30 ± 2.00 844.30 ± 2.00 840.40 ± 2.00 836.40 ± 2.00 857.70 ± 0.40 861.80 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.59 -0.06 -0.52 -1.29 -1.37 2.34 -1.37 -0.89 -0.12 0.74 -0.36 -0.17

00-est(✕ ) 00-est(✕ ) 00-est1) 00-est1) 00-est1) 00-est1) 00-est1) 00-est1) 00-est(✕ ) 00-est1) 37-mck/sow(✕ ) 43-ano-3(✕ )

T K

293.15 293.15 293.15 293.15 293.15 293.15 293.15 298.15 303.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

861.80 ± 0.40 861.90 ± 0.40 861.90 ± 0.30 861.80 ± 0.40 862.20 ± 0.30 861.90 ± 0.30 862.05 ± 0.10 857.95 ± 0.10 854.03 ± 0.10 862.20 ± 0.40 862.10 ± 0.20

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.17 -0.07 -0.07 -0.17 0.23 -0.07 0.08 -0.11 0.07 0.23 0.13

45-ano-1(✕ ) 45-per(◆) 46-boo/gre(∆) 46-bue/kar(✕ ) 49-bir/dea(∇) 49-bir/dea(∇) 49-for/ros( ) 49-for/ros( ) 49-for/ros( ) 52-ano-6(✕ ) 56-ano( )

… … …

{

Not included in Fig. 1. cont.

Landolt-Börnstein New Series IV/8E

74

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

(1-Methylpropyl)benzene (cont.)

ρ

ρ

Further references: [02-kla-2, 29-boe, 34-lov/cam, 40-tou/hen, 42-hus/kay, 43-hen/aus, 45-gre/vog-1, 47-bal/mar, 47-sis/noz, 48-bro/iof, 48-iva/sav-1, 48-vor/bro, 49-sid/vdo, 50-kuc/tsu, 51-kut/nic, 52-ano-4, 52-ter/tsu, 54-kre/top].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 877.59 ± 2.37 871.34 ± 1.56 864.33 ± 0.61

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 861.97 ± 0.37 858.06 ± 0.12 856.56 ± 0.09

T K

310.00 320.00 330.00

ρ ± σ fit kg ⋅ m−3 848.03 ± 0.56 838.75 ± 2.00 828.70 ± 3.80

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10 2-(Methylpropyl)benzene

75

C10H14

[538-93-2]

MW =134.22

31

Table 1. Fit with estimated B coefficient for 15 accepted points. Deviation σw = 0.134. Coefficient ρ = A + BT A 1087.70 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

286.65 287.25 287.45 289.25 291.35 293.15 277.15 278.15 283.15 288.15 293.15 298.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

872.4 ± 10.0 871.9 ± 10.0 871.8 ± 10.0 870.3 ± 10.0 868.7 ± 10.0 867.2 ± 10.0 879.6 ± 10.0 874.5 ± 10.0 870.2 ± 10.0 870.6 ± 10.0 866.4 ± 10.0 862.5 ± 10.0 853.6 ± 1.0 853.40 ± 0.30 854.0 ± 1.0 853.6 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

14.03 14.03 14.05 14.04 14.10 14.06 13.62 9.30 9.02 13.39 13.24 13.28 0.42 0.22 0.82 0.42

1892-lan/jah1) 1892-lan/jah1) 1892-lan/jah1) 1892-lan/jah1) 1892-lan/jah1) 1892-lan/jah1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 1896-per1) 34-lov/cam1) 43-ano-3 43-hen/aus1) 44-ano

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

855.7 ± 0.4 853.2 ± 0.2 849.2 ± 0.1 839.7 ± 0.7

T K

293.15 293.15 293.15 293.15 293.15 293.15 298.15 303.15 293.15 293.15 293.15 293.15 293.15 293.15 298.15

ρexp ± 2σ est kg ⋅ m

−3

853.40 ± 0.4 853.4 ± 0.30 852.5 ± 1.0 853.50 ± 0.30 853.2 ± 0.4 853.19 ± 0.10 849.05 ± 0.10 845.10 ± 0.10 853.43 ± 0.30 853.20 ± 0.20 853.43 ± 0.25 853.6 ± 0.6 853.0 ± 0.6 862.7 ± 4.0 849.23 ± 0.20

ρexp − ρcalc Ref. kg ⋅ m−3

0.22 0.22 -0.68 0.32 0.02 0.01 -0.13 -0.08 0.25 0.02 0.25 0.42 -0.18 9.52 0.05

45-per 46-boo/gre 46-bue/kar1) 49-bir/dea 49-boo/hen 49-for/ros 49-for/ros 49-for/ros 50-bry/tur 52-ano-4 53-tre 56-ano 57-clo/nap 57-shv1) 75-mil/wac

76

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Methyl-2-propylbenzene

[1074-17-5]

C10H14

MW = 134.22

32

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 8.2217 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.6295 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.08459 · 103 -7.17274 · 10-1

ρ

ρ

Coefficient A B

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

77

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 288.90 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

889.10 ± 0.60 874.80 ± 0.60 877.00 ± 0.60 874.00 ± 0.60 875.20 ± 1.50 874.00 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.43 0.48 -0.37 -0.32 0.88 -0.32

1895-jou(✕ ) 1895-jou(✕ ) 19-von(✕ ) 19-von(✕ ) 24-eis/sch-11) 24-eis/sch-1(◆)

T K

292.15 288.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

874.70 ± 0.60 877.00 ± 0.60 873.70 ± 0.40 874.40 ± 0.30 874.40 ± 0.30 873.60 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.34 -0.91 -0.62 0.08 0.08 -0.72

32-kuh/deu(✕ ) 33-hal(✕ ) 39-dya/loz(∇) 49-bir/dea( ) 51-ano(∆) 55-ano-7( )

{ …

Not included in Fig. 1.

Further references: [24-eis/sch, 34-lov/cam]. Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

890.93 ± 0.61 883.76 ± 0.94 876.58 ± 0.55

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3

T K

874.32 ± 0.45 870.74 ± 0.48 869.41 ± 0.57

293.15 298.15 300.00

1-Methyl-3-propylbenzene

[1074-43-7]

T K

310.00

C10H14

ρ ± σ fit kg ⋅ m−3 862.24 ± 2.22

MW =134.22

33

Table 1. Fit with estimated B coefficient for 8 accepted points. Deviation σw = 0.225. Coefficient ρ = A + BT 1095.42 A -0.800 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 290.15 293.15 290.75 293.15 293.15 293.15 288.15 1)

ρexp ± 2σ est kg ⋅ m−3

862.0 ± 1.5 864.8 ± 1.5 860.1 ± 1.0 864.6 ± 1.5 862.5 ± 2.0 862.5 ± 2.0 862.5 ± 2.0 864.2 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

1.10 1.50 -0.80 1.78 1.60 1.60 1.60 -0.70

19-von1) 19-von1) 22-von/kol 22-von/kol1) 24-eis/sch1) 24-eis/sch-21) 34-lov/cam1) 35-hal

T K

290.15 290.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

864.0 ± 1.0 864.0 ± 1.0 861.0 ± 0.4 861.0 ± 0.30 861.0 ± 0.4 863.9 ± 3.0 860.8 ± 0.20

ρexp − ρcalc Ref. kg ⋅ m−3

0.74 0.70 0.10 0.10 0.10 3.00 -0.10

37-tsu/vik 37-tzu 48-bir 49-bir/dea 51-ano 53-rac/zal1) 56-ano

Not included in calculation of linear coefficients.

cont.

Landolt-Börnstein New Series IV/8E

78

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1-Methyl-3-propylbenzene (cont.) Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

871.4 ± 2.6 863.4 ± 0.6 860.9 ± 0.2 856.9 ± 1.1

1-Methyl-4-propylbenzene

[1074-55-1]

C10H14

MW = 134.22

34

Table 1. Fit with estimated B coefficient for 11 accepted points. Deviation σw = 0.268. Coefficient ρ = A + BT 1093.00 A -0.800 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

448.55 282.95 293.15 296.85 291.95 293.15 293.15 298.15 288.55 290.15 1)

ρexp ± 2σ est kg ⋅ m−3

724.8 ± 2.0 864.0 ± 2.0 858.0 ± 1.0 855.4 ± 2.0 861.7 ± 2.0 857.0 ± 1.5 857.0 ± 1.5 855.0 ± 1.0 864.2 ± 1.0 867.1 ± 6.0

ρexp − ρcalc Ref. kg ⋅ m−3

-9.36 -2.64 -0.48 -0.12 2.26 -1.48 -1.48 0.52 2.04 6.26

1883-sch-31) 1883-sch-31) 22-von/kol 22-von/kol1) 22-von/kol1) 24-eis/sch1) 24-eis/sch-21) 28-ipa/orl-1 34-lov/cam 37-tsu/vik1)

T K

290.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

867.1 ± 6.0 859.1 ± 1.0 859.1 ± 1.0 858.5 ± 0.4 858.5 ± 0.4 858.50 ± 0.30 858.2 ± 0.4 858.50 ± 0.20 858.40 ± 0.20

ρexp − ρcalc Ref. kg ⋅ m−3

6.22 0.62 0.62 -0.03 0.02 0.02 -0.28 0.02 -0.08

37-tzu1) 39-dya/loz 41-sch/sch-1 44-boo/per 48-bir 49-bir/dea 49-boo/hen 51-ano 56-ano

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

869.0 ± 1.3 861.0 ± 0.4 858.5 ± 0.3 854.5 ± 0.6

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10 1,2,3,5-Tetramethylbenzene

[527-53-7]

79

C10H14

MW = 134.22

35

C10H14

MW = 134.22

36

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 288.65 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

890.60 ± 0.60 25-eis-1 1) 896.00 ± 5.00 35-gau 1) 898.20 ± 4.00 37-nel 1) 895.00 ± 4.00 39-nen/isa 889.50 ± 0.60 44-boo/per 889.90 ± 0.60 44-gre-3 890.10 ± 0.30 45-boo/gre 890.50 ± 0.60 48-bir 890.40 ± 0.60 48-bir 890.10 ± 0.30 48-boo/gre 890.20 ± 0.40 48-boo/gre 890.50 ± 0.60 49-bir/dea 890.40 ± 0.60 49-bir/dea 890.20 ± 0.40 49-boo/gre 890.50 ± 0.60 51-ano 890.40 ± 0.60 51-ano 890.1 ± 0.40 Recommended

Not included in calculation of recommended value.

1,2,3,4-Tetramethylbenzene

[488-23-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.8598 (combined temperature ranges, weighted), σc,uw = 4.8609 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 288.65 to 313.15 K ρ = A + BT + CT 2 + DT 3 + … 1.13966 · 103 -8.04397 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

80

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

1,2,3,4-Tetramethylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

289.15 293.15 288.65 293.15 293.15 298.15 1)

904.40 ± 3.00 901.00 ± 3.00 904.10 ± 4.00 904.00 ± 0.60 905.30 ± 1.00 901.50 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-2.67 -2.85 -3.37 0.15 1.45 1.67

19-von(✕ ) 19-von1) 37-nel(✕ ) 39-nen/isa( ) 41-mai/str(✕ ) 41-mai/str(✕ )

{

T K

293.15 293.15 293.15 293.15 298.15 313.15

ρexp ± 2σ est −3

kg ⋅ m

904.60 ± 0.60 904.60 ± 0.60 904.60 ± 0.60 904.70 ± 0.60 899.40 ± 0.60 887.84 ± 0.30

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.75 0.75 0.75 0.85 -0.43 0.08

48-bir(∇) 49-bir/dea(◆) 51-ano(✕ ) 56-ano(∆) 75-mil/wac(✕ ) 80-sur( )

…

Not included in Fig. 1.

ρ

ρ

Further references: [33-mit/mar].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

81

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

914.43 ± 8.00 906.38 ± 2.42 903.85 ± 0.66

280.00 290.00 293.15

ρ ± σ fit kg ⋅ m−3

T K

899.83 ± 0.81 898.34 ± 1.37 890.29 ± 2.59

298.15 300.00 310.00

1,2,4,5-Tetramethylbenzene

T K

[95-93-2]

320.00

C10H14

ρ ± σ fit kg ⋅ m−3 882.25 ± 3.00

MW = 134.22

37

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.0629 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.4767 · 10-2 (combined temperature ranges, unweighted). T = 354.45 to 445.90 K ρ = A + BT + CT 2 + DT 3 + … 1.06400 · 103 -4.84946 · 10-1 -4.29502 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

354.45 358.00 360.00 366.60 371.70 377.60 380.90 386.70 391.80 395.80 1)

ρexp ± 2σ est kg ⋅ m

−3

838.00 ± 1.00 835.10 ± 0.58 833.60 ± 0.58 829.00 ± 0.58 824.30 ± 0.58 819.80 ± 0.58 817.20 ± 0.58 812.00 ± 0.58 808.20 ± 0.58 805.10 ± 0.58

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.15 -0.24 -0.15 0.51 -0.10 0.16 0.23 -0.24 0.14 0.33

{) …) …) …) …) …) …) …) …) …)

1893-eyk( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee(

T K

403.80 406.90 410.90 415.30 418.60 424.30 430.40 435.80 441.20 445.90

ρexp ± 2σ est kg ⋅ m

−3

797.80 ± 0.58 795.30 ± 0.58 791.90 ± 0.58 788.70 ± 0.58 786.00 ± 0.58 780.90 ± 0.58 775.70 ± 0.58 770.90 ± 0.58 766.50 ± 0.58 762.50 ± 0.58

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.34 -0.26 -0.32 0.18 0.26 -0.01 -0.01 -0.19 0.07 0.14

…) …) …) …) …) …) …) …) …) …)

85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee(

Not included in Fig. 1.

Further references: [00-dut/fri].

cont.

Landolt-Börnstein New Series IV/8E

82

2.1 Alkylbenzenes (CnH2n-6), C6 - C10

ρ

ρ

1,2,4,5-Tetramethylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 841.65 ± 0.95 833.75 ± 0.74 825.77 ± 0.62 817.70 ± 0.57

T K

390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 809.54 ± 0.56 801.30 ± 0.58 792.97 ± 0.60 784.56 ± 0.61

T K

430.00 440.00 450.00 460.00

ρ ± σ fit kg ⋅ m−3 776.05 ± 0.62 767.47 ± 0.63 758.80 ± 0.66 750.04 ± 0.73

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

83

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-Butyl-2-methylbenzene

[1595-11-5]

C11H16

MW =148.25

38

C11H16

MW = 148.25

39

C11H16

MW = 148.25

40

Table 1. Experimental values with uncertainties. T K

291.45 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.3 ± 2.0 873.0 ± 2.0

1899-nie 34-lov/cam

1-Butyl-3-methylbenzene

[1595-04-6]

Table 1. Experimental values with uncertainties. T K 291.55 293.15 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.5 ± 3.0 867.5 ± 3.0 864.0 ± 2.0

1899-nie 34-lov/cam 35-hal

1-Butyl-4-methylbenzene

[1595-05-7]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.526. Coefficient ρ = A + BT A 1063.65 B -0.700

Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp − ρcalc Ref. ρexp ± 2σ est T kg ⋅ m−3 K kg ⋅ m−3 287.35 287.15 293.15 293.15 293.15 293.15 1)

861.8 ± 2.0 945.2 ± 40.0 863.6 ± 4.0 863.6 ± 4.0 859.0 ± 2.0 858.6 ± 2.0

-0.71 82.55 5.15 5.15 0.55 0.15

1899-nie 27-mar/hag1) 33-sho/iss1) 33-sho/iss1) 34-lov/cam 41-sch/sch-1

Not included in calculation of linear coefficients.

cont.

Landolt-Börnstein New Series IV/8E

84

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-Butyl-4-methylbenzene (cont.) Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

867.7 ± 2.0 860.7 ± 2.0 858.4 ± 2.0 854.9 ± 2.0

1,3-Diethyl-5-methylbenzene

[2050-24-0]

C11H16

MW = 148.25

41

[1074-92-6]

C11H16

MW = 148.25

42

[1075-38-3]

C11H16

MW = 148.25

43

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

879.0 ± 1 863.1 ± 0.4 863.1 ± 0.4

1874-jac 46-gib/tho Recommended

1-(1,1-Dimethylethyl)-2-methylbenzene Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

889.74 ± 0.20 889.74 ± 0.20 889.8 ± 0.4 889.7 ± 0.20

49-ser/hip 49-ser/wis 53-sch/cla Recommended

1-(1,1-Dimethylethyl)-3-methylbenzene Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

865.85 ± 0.20 865.85 ± 0.20 865.9 ± 0.4 865.9 ± 0.20

49-ser/hip 49-ser/wis 53-sch/cla Recommended

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 4-tert-Butyltoluene

[98-51-1]

85

C11H16

MW = 148.25

44

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.3029 (combined temperature ranges, weighted), σc,uw = 3.8729 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 333.15 K ρ = A + BT + CT 2 + DT 3 + … 1.07632 · 103 -7.31779 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 286.40 293.15 293.15 273.15 283.15 293.15 313.15 1)

ρexp ± 2σ est −3

kg ⋅ m

877.10 ± 1.50 866.70 ± 1.00 861.00 ± 0.60 859.90 ± 1.50 879.38 ± 2.00 871.58 ± 2.00 863.68 ± 2.50 847.79 ± 2.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.66 -0.04 -0.80 -1.90 2.94 2.46 1.88 0.63

1898-ver(✕ ) 16-von(∇) 16-von(∇) 29-lac(✕ ) 35-lef/lef(✕ ) 35-lef/lef(✕ ) 35-lef/lef1) 35-lef/lef(✕ )

T K

318.15 333.15 293.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

843.90 ± 2.50 832.02 ± 2.50 862.80 ± 2.00 858.80 ± 2.00 861.90 ± 1.00 861.13 ± 0.40 861.13 ± 0.40 861.20 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.39 -0.51 1.00 -3.00 0.10 -0.67 -0.67 -0.60

35-lef/lef(✕ ) 35-lef/lef(✕ ) 43-hen/kur(✕ ) 45-tsu(✕ ) 47-tsu(◆) 49-ser/hip(∆) 49-ser/wis( ) 53-sch/cla( )

{ …

Not included in Fig. 1.

Further references: [41-wel/hen].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15

ρ ± σ fit kg ⋅ m−3 878.74 ± 2.49 871.42 ± 1.35 864.11 ± 1.08 861.80 ± 1.14

T K

298.15 300.00 310.00 320.00

ρ ± σ fit kg ⋅ m−3 858.14 ± 1.34 856.79 ± 1.45 849.47 ± 2.11 842.15 ± 2.70

T K

330.00 340.00

ρ ± σ fit kg ⋅ m−3 834.83 ± 2.91 827.52 ± 2.50

cont.

Landolt-Börnstein New Series IV/8E

86

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

ρ

ρ

4-tert-Butyltoluene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1,2-Dimethyl-3-(1-methylethyl)benzene

[22539-65-7]

C11H16

MW = 148.25

45

[4132-77-8]

C11H16

MW = 148.25

46

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

894.0 ± 1.0 892.0 ± 1.0 893.0 ± 1.2

60-top/vol 61-vol/zav Recommended

1,2-Dimethyl-4-(1-methylethyl)benzene

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.374. Coefficient ρ = A + BT 1105.42 A -0.800 B cont.

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

87

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

294.25 294.25 288.65 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

872.9 ± 2.0 872.9 ± 2.0 874.0 ± 1.0 871.0 ± 1.0 874.1 ± 2.0 871.3 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

2.88 2.88 -0.50 0.10 3.20 0.40

06-kla1) 06-kla/som1) 07-kla 24-kru 50-pet/sop1) 60-top/vol

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

881.4 ± 1.2 873.4 ± 0.4 870.9 ± 0.4 866.9 ± 0.7

1,3-Dimethyl-4-(1-methylethyl)benzene

[4706-89-2]

C11H16

MW = 148.25

47

[4706-90-5]

C11H16

MW = 148.25

48

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

873.4 ± 2.0 877.0 ± 2.0 875.2 ± 2.4

51-rob/goo 60-top/vol Recommended

1,3-Dimethyl-5-(1-methylethyl)benzene Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

862.1 ± 2.0 860.0 ± 1.0 860.6 ± 1.0 860.5 ± 1.0

Landolt-Börnstein New Series IV/8E

51-rob/goo 54-mcc/lie 60-top/vol Recommended

88

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1,4-Dimethyl-2-(1-methylethyl)benzene

[4132-72-3]

C11H16

MW = 148.25

49

[2049-95-8]

C11H16

MW = 148.25

50

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.6 ± 3 876.2 ± 2.0 873.9 ± 2.0 875.0 ± 2.2

50-pet/sop 60-top/vol 63-iof/yan Recommended

(1,1-Dimethylpropyl)benzene

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.2485 (combined temperature ranges, weighted), σc,uw = 7.0072 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.07700 · 103 -6.95848 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 273.15 293.15 288.15 293.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

873.60 ± 4.00 888.80 ± 1.00 873.90 ± 1.00 874.10 ± 3.00 873.70 ± 1.00 868.40 ± 2.00 874.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-2.89 1.88 0.89 -2.39 0.69 -1.13 1.29

1888-sch-1(✕ ) 1898-kon/ego(✕ ) 1898-kon/ego(✕ ) 30-how/nas(✕ ) 38-ipa/sch(✕ ) 42-hus/kay(✕ ) 46-hus/bar(◆)

T K

303.15 294.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

858.90 ± 6.00 872.60 ± 1.50 874.90 ± 0.50 875.20 ± 0.50 875.10 ± 0.50 874.85 ± 0.50 873.50 ± 1.50

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-7.15 0.29 1.89 2.19 2.09 1.84 0.49

47-leg(✕ ) 49-sid/vdo(✕ ) 50-boo/gre(∆) 52-ano-5( ) 52-ano-6( ) 52-ina/gre(∇) 53-hus/van(✕ )

… {

Not included in Fig. 1.

Further references: [03-ans/bec, 06-gle, 12-byg, 34-lov/cam, 38-oco/sow, 37-smi, 43-hen/kur, 47-tsu].

cont.

Landolt-Börnstein New Series IV/8E

89

ρ

ρ

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 889.12 ± 4.00 882.16 ± 4.00 875.20 ± 2.26

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 873.01 ± 0.99 869.53 ± 1.25 868.24 ± 2.42

T K

310.00

ρ ± σ fit kg ⋅ m−3 861.28 ± 12.00

90

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

(1,2-Dimethylpropyl)benzene

[4481-30-5]

C11H16

MW = 148.25

51

C11H16

MW = 148.25

52

Table 1. Experimental values with uncertainties. T K

289.15 289.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.2 ± 6.0 867.2 ± 6.0 879.5 ± 2.0 879.5 ± 2.0

03-kla-1 12-byg 38-ipa/pin-1 38-ipa/sch

(2,2-Dimethylpropyl)benzene

[1007-26-7]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 8.0106 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.0416 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 365.05 K ρ = A + BT + CT 2 + DT 3 + … 1.08888 · 103 -7.92696 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.45 273.15 283.15 293.35 303.45 315.65

ρexp ± 2σ est −3

kg ⋅ m

858.10 ± 1.00 872.70 ± 1.00 864.70 ± 1.00 856.50 ± 1.00 848.30 ± 1.00 838.60 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.25 0.34 0.27 0.16 -0.04 -0.07

{

12-byg( ) 16-byg(∆) 16-byg(∆) 16-byg(∆) 16-byg(∆) 16-byg(∆)

T K

325.25 339.85 349.45 365.05 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

830.90 ± 1.00 819.20 ± 1.00 811.40 ± 1.00 798.70 ± 1.00 858.30 ± 2.00 855.50 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.16 -0.28 -0.47 -0.81 1.80 -1.00

16-byg(∆) 16-byg(∆) 16-byg(∆) 16-byg(∆) 38-ipa/sch(∇) 52-ano-8( )

…

Further references: [38-hus/fox].

cont.

Landolt-Börnstein New Series IV/8E

91

ρ

ρ

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 874.85 ± 1.14 866.93 ± 1.10 859.00 ± 1.07 856.50 ± 1.06 852.54 ± 1.05

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 851.07 ± 1.05 843.14 ± 1.03 835.22 ± 1.03 827.29 ± 1.04 819.36 ± 1.05

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 811.44 ± 1.08 803.51 ± 1.11 795.58 ± 1.15 787.66 ± 1.19

92

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1,2-Dimethyl-4-propylbenzene

[3982-66-9]

C11H16

MW = 148.25

53

C11H16

MW = 148.25

54

C11H16

MW = 148.25

55

C11H16

MW = 148.25

56

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.104. Coefficient ρ = A + BT A 1112.10 B -0.840 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.45 293.15 286.00 285.85 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

867.7 ± 3.0 864.0 ± 3.0 871.8 ± 2.0 871.9 ± 2.0 866.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-2.10 -1.85 -0.06 -0.09 0.15

21-von/zie1) 21-von/zie1) 21-von/zie 21-von/zie 21-von/zie

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

876.9 ± 2.0 868.5 ± 2.0 865.9 ± 2.0 861.7 ± 2.0

1,3-Dimethyl-2-propylbenzene

[17059-45-9]

Table 1. Experimental value with uncertainty. T K

292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.6 ± 3.0

29-ber/ang

1,3-Dimethyl-4-propylbenzene

[61827-85-8]

Table 1. Experimental value with uncertainty. T K 292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.6 ± 2.0

29-ber/ang

1,3-Dimethyl-5-propylbenzene

[3982-64-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.8 ± 0.4

48-ano-6 Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1,4-Dimethyl-5-propylbenzene

[3042-50-0]

93

C11H16

MW = 148.25

57

C11H16

MW = 148.25

58

C11H16

MW = 148.25

59

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.165. Coefficient ρ = A + BT A 1106.41 B -0.800 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

303.15 293.15 303.15 313.15

ρexp ± 2σ est kg ⋅ m−3

863.9 ± 0.6 871.6 ± 1.0 863.9 ± 1.0 856.2 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.01 -0.27 -0.03 0.29

49-les/sur 49-qua 49-qua 49-qua

Table 3. Recommended values. ρexp ± 2σ est

T K 290.00 293.15 298.15 310.00 320.00

kg ⋅ m−3

874.4 ± 1.3 871.9 ± 1.0 867.9 ± 0.5 858.4 ± 0.7 850.4 ± 1.7

1-Ethyl-2-(1-methylethyl)benzene

[18970-44-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

874.7 ± 0.8

57-els/str

1-Ethyl-4-(1-methylethyl)benzene

[4218-48-8]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.825. Coefficient ρ = A + BT A 1105.55 B -0.850

cont.

Landolt-Börnstein New Series IV/8E

94

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-Ethyl-4-(1-methylethyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

289.15 293.15 293.15 293.15 296.15 1)

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. kg ⋅ m−3

860.6 ± 2.0 864.0 ± 4.0 864.0 ± 4.0 862.5 ± 3.0 853.0 ± 2.0

0.82 7.62 7.62 6.12 -0.83

03-kla/kei 15-wal-11) 18-wal1) 41-wel/hen1) 49-tod

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

867.6 ± 2.0 859.1 ± 3.0 856.4 ± 3.0 852.1 ± 3.0

(1-Ethylpropyl)benzene

[1196-58-3]

C11H16

MW = 148.25

60

Table 1. Experimental and recommended values with uncertainties. T K 294.15 294.15 294.15 288.15 288.15 293.15 292.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.5 ± 4.0 874.4 ± 4.0 870.5 ± 4.0 875.5 ± 4.0 875.5 ± 4.0 864.9 ± 2.0 874.2 ± 4.0 873.4 ± 4.0 863.0 ± 1.0 863.4 ± 1.1

1883-daf1) 1883-daf-21) 1883-daf-21) 03-kla-11) 12-byg1) 38-ipa/sch 39-den1) 39-den1) 60-vdo/kha Recommended

Not included in calculation of recommended value.

1-Ethyl-2-propylbenzene

[16021-20-8]

C11H16

MW = 148.25

61

Table 1. Experimental values with uncertainties. T K 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.2 ± 1.0 873.2 ± 1.0

57-els/str 57-els/str-1

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-Ethyl-3-propylbenzene

[20024-91-3]

95

C11H16

MW = 148.25

62

C 11H16

MW = 148.25

63

C11H16

MW = 148.25

64

C11H16

MW = 148.25

65

Table 1. Experimental values with uncertainties. T K 293.15 292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

858.8 ± 2.0 858.8 ± 2.0

1883-ren 1884-ren

1-Ethyl-4-propylbenzene

[20024-90-2]

Table 1. Experimental values with uncertainties. T K

292.15 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.0 ± 4.0 867.8 ± 1.0

1890-wid 54-car/eas-1

1-Ethyl-2,3,6-trimethylbenzene

[61827-87-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

898.5 ± 1.5

39-smi/kie-1

1-Ethyl-2,4,5-trimethylbenzene

[17851-27-3]

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.544. Coefficient ρ = A + BT 1136.15 A -0.850 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

287.15 293.15 289.00 288.90 285.30 1)

ρexp ± 2σ est −3

kg ⋅ m

889.0 ± 4.0 883.0 ± 4.0 886.6 ± 4.0 886.7 ± 4.0 893.7 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-3.07 -3.97 -3.90 -3.88 0.06

03-kla/kei1) 19-von1) 19-von1) 19-von1) 21-von/zie

T K

285.20 293.15 293.15 290.65

ρexp ± 2σ est −3

kg ⋅ m

893.8 ± 2.0 887.0 ± 2.0 887.5 ± 1.5 888.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.07 0.03 0.53 -1.10

21-von/zie 21-von/zie 39-smi/kie-1 49-buc/col

Not included in calculation of linear coefficients.

cont.

Landolt-Börnstein New Series IV/8E

96

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-Ethyl-2,4,5-trimethylbenzene (cont.) Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

898.1 ± 4.0 889.6 ± 4.0 887.0 ± 4.0 882.7 ± 4.0

1-Ethyl-2,4,6-trimethylbenzene

[3982-67-0]

C11H16

MW = 148.25

66

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.248. Coefficient ρ = A + BT 1120.70 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.65 289.50 293.15 291.15 293.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

890.7 ± 4.0 888.5 ± 4.0 892.5 ± 5.0 888.0 ± 2.0 885.9 ± 1.0 882.4 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

3.32 -0.60 6.32 0.22 -0.28 0.22

03-kla/kei1) 19-von1) 39-smi/kie-11) 49-buc/col 56-lib/pry 56-lib/pry

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

888.7 ± 2.0 886.2 ± 2.0 882.2 ± 2.0

(1-Methylbutyl)benzene

[2719-52-0]

C11H16

MW = 148.25

67

Table 1. Fit with estimated B coefficient for 7 accepted points. Deviation σw = 2.283. Coefficient ρ = A + BT 1123.37 A -0.900 B

cont. Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

97

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

294.15 294.15 290.15 293.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

859.4 ± 1.0 859.4 ± 1.0 856.6 ± 5.0 857.6 ± 3.0 855.1 ± 2.0 860.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.77 0.77 -5.63 -1.93 0.07 0.47

T K

02-kla-2 12-byg 36-den1) 38-ipa/sch1) 38-oco/sow 38-til

290.15 293.15 293.15 293.15 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

856.6 ± 1.0 852.9 ± 5.0 855.0 ± 5.0 862.1 ± 2.0 859.9 ± 4.0 860.6 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-5.63 -6.63 -4.53 2.57 4.87 1.07

39-den 40-ser1) 40-ser1) 40-tou/hen 42-hus/kay1) 56-ano

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

862.4 ± 2.3 859.5 ± 2.3 855.0 ± 2.3

290.00 293.15 298.15

(2-Methylbutyl)benzene

[3968-85-2]

C11H16

MW = 148.25

68

Table 1. Fit with estimated B coefficient for 12 accepted points. Deviation σw = 0.784. Coefficient ρ = A + BT 1094.86 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

292.15 293.15 293.15 293.15 298.15 298.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

860.0 ± 0.6 860.0 ± 0.6 861.0 ± 1.0 868.0 ± 6.0 855.0 ± 1.5 855.0 ± 1.5 859.0 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

-1.14 -0.34 0.66 7.66 -1.34 -1.34 2.66

09-taf/jur 12-von/deu-1 25-gil/bea-2 28-zel/gav1) 35-lev/kun 35-lev/mar 35-lev/mar1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

862.9 ± 0.9 860.3 ± 0.8 856.3 ± 0.9

T K

293.15 298.15 298.15 298.15 293.15 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

858.4 ± 2.0 857.6 ± 1.0 857.1 ± 1.0 857.0 ± 1.0 860.7 ± 0.4 854.4 ± 1.0 860.7 ± 0.4

ρexp − ρcalc Ref. kg ⋅ m−3

-1.94 1.26 0.76 0.66 0.36 -1.94 0.36

38-ipa/sch 38-oco/sow 39-rot/lev 48-let 50-bry/tur 51-let/mau 53-tre

98

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

(S)-(+)-(2-Methylbutyl)benzene

[40560-30-3]

C11H16

MW = 148.25

69

C11H16

MW = 148.25

70

C11H16

MW = 148.25

71

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

857.0 ± 2.0

50-let/tra

(3-Methylbutyl)benzene

[2049-94-7]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 1.181. Coefficient ρ = A + BT 1121.05 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.15 288.75 288.75 288.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

885.0 ± 20.0 862.7 ± 2.0 862.7 ± 2.0 861.2 ± 1.5 856.0 ± 1.5 852.9 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

25.99 1.53 1.53 -0.51 -1.21 -4.31

1892-cla1) 04-kla 12-byg 22-cla/kre 25-gil/bea-2 40-ser1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

869.0 ± 1.5 860.0 ± 1.2 857.2 ± 1.2 852.7 ± 1.4

1-Methyl-4-(1-methylpropyl)benzene

[1595-16-0]

Table 1. Experimental and recommended values with uncertainties. T K 292.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

864.0 ± 3 865.8 ± 1.0 866.5 ± 0.7 866.3 ± 0.7

18-wal 41-wel/hen 43-hen/kur Recommended

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-Methyl-4-(2-methylpropyl)benzene

[5161-04-6]

99

C11H16

MW = 148.25

72

C11H16

MW = 148.25

73

Table 1. Experimental values with uncertainties. T K

292.15 292.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

864.0 ± 2.0 864.0 ± 2.0 850.9 ± 2.0 852.5 ± 2.0 863.6 ± 2.0

15-wal-1 18-wal 50-pin/str 57-syk/her 59-rom/gri

Pentamethylbenzene

[700-12-9]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.1532 (combined temperature ranges, weighted), σc,uw = 6.0745 · 10-1 (combined temperature ranges, unweighted). T = 293.15 to 480.55 K ρ = A + BT + CT 2 + DT 3 + … 1.15355 · 103 -7.94740 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

296.65 380.35 348.65 380.95 381.25 430.95

ρexp ± 2σ est −3

kg ⋅ m

crystal 1004 ± 2.0 liquid 847.20 ± 3.00 875.70 ± 2.00 851.60 ± 2.00 851.40 ± 2.00 813.10 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

33-hen/jef -4.07 -0.77 0.80 0.84 2.04

1893-eyk(◆) 00-dut/fri(∇) 00-dut/fri(∇) 00-dut/fri(∇) 00-dut/fri(∇)

T K

470.15 480.55 293.15 345.95 346.65 380.35 333.15

ρexp ± 2σ est −3

kg ⋅ m

782.20 ± 2.00 773.50 ± 2.00 921.00 ± 1.00 878.60 ± 1.00 878.00 ± 1.00 847.20 ± 2.00 889.50 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

2.29 1.86 0.43 -0.01 -0.06 -4.07 0.72

00-dut/fri(∇) 00-dut/fri(∇) 21-von/zie( ) 21-von/zie( ) 21-von/zie( ) 33-hen/jef(∆) 37-loz/dya( )

{ { { …

cont.

Landolt-Börnstein New Series IV/8E

100

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

ρ

ρ

Pentamethylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 923.08 ± 1.00 920.57 ± 0.99 916.60 ± 0.98 915.13 ± 0.97 907.18 ± 0.99 899.24 ± 1.06 891.29 ± 1.16 883.34 ± 1.30

T K

350.00 360.00 370.00 380.00 390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 875.39 ± 1.46 867.45 ± 1.64 859.50 ± 1.82 851.55 ± 2.00 843.60 ± 2.17 835.66 ± 2.31 827.71 ± 2.43 819.76 ± 2.52

T K

430.00 440.00 450.00 460.00 470.00 480.00 490.00

ρ ± σ fit kg ⋅ m−3 811.81 ± 2.57 803.87 ± 2.56 795.92 ± 2.50 787.97 ± 2.38 780.02 ± 2.19 772.08 ± 1.93 764.13 ± 1.60

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 Pentylbenzene

[538-68-1]

C11H16

101 MW = 148.25

74

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.3434 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.2348 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 367.95 K ρ = A + BT + CT 2 + DT 3 + … 1.07196 · 103 -7.24770 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 288.15 303.15 293.15 303.15 293.15 303.15 282.35 284.65 303.45 322.95 323.65 342.95 367.95 1)

ρexp ± 2σ est kg ⋅ m

−3

874.09 ± 0.40 862.59 ± 0.40 850.98 ± 0.60 860.00 ± 1.00 852.60 ± 1.00 860.00 ± 0.60 852.60 ± 0.60 870.20 ± 1.00 868.10 ± 1.00 854.10 ± 1.00 838.50 ± 1.00 838.40 ± 1.00 823.30 ± 1.00 803.90 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.10 -0.53 -1.27 0.50 0.35 0.50 0.35 2.88 2.44 2.07 0.60 1.01 -0.10 -1.38

29-sim(◆) 29-sim(◆) 29-sim(◆) 39-sch-71) 39-sch-7(✕ ) 39-sch/hop1) 39-sch/hop(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ )

T K

293.15 293.15 314.35 314.75 332.65 334.65 359.65 360.75 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

859.30 ± 0.40 859.40 ± 0.40 843.80 ± 0.60 844.00 ± 0.80 830.60 ± 0.80 828.60 ± 0.60 809.80 ± 1.00 809.10 ± 1.00 859.02 ± 0.30 859.02 ± 0.25 859.20 ± 0.40 859.10 ± 0.50 859.10 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.20 -0.10 -0.33 0.16 -0.27 -0.82 -1.50 -1.40 -0.48 -0.48 -0.30 -0.40 -0.40

48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 50-bry/tur( ) 53-tre( ) 56-ano(∆) 57-ano-4(✕ ) 63-ano-3(∇)

…

{

Not included in Fig. 1.

Further references: [1883-sch-2, 12-byg, 12-von/deu-1, 21-rad/sim, 25-gil/bea-2, 34-lov/cam, 36-den, 38-ipa/sch, 39-dya/loz, 39-she/woo, 41-ju /woo, 42-lar/tho, 42-sch, 46-gar, 57-tru/hol].

cont.

Landolt-Börnstein New Series IV/8E

102

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

ρ

ρ

Pentylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 876.28 ± 0.49 869.03 ± 0.53 861.78 ± 0.58 859.50 ± 0.59 855.87 ± 0.62

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 854.53 ± 0.63 847.28 ± 0.69 840.04 ± 0.76 832.79 ± 0.82 825.54 ± 0.89

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 818.29 ± 0.96 811.05 ± 1.03 803.80 ± 1.11 796.55 ± 1.18

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 bis(1-Methylethyl)benzene

[25321-09-9]

103

C12H18

MW = 162.27

75

C12H18

MW = 162.27

76

C12H18

MW = 162.27

77

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

858.0 ± 1.0

46-ver/hil

1,2-bis(1-Methylethyl)benzene

[577-55-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

870.1 ± 0.6

48-mel/woo

1,3-bis(1-Methylethyl)benzene

[99-62-7]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 1.012. Coefficient ρ = A + BT 1107.45 A -0.850 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 303.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

ρexp − ρcalc Ref. kg ⋅ m−3

859.6 ± 2.0 856.6 ± 2.0 848.4 ± 2.0 855.9 ± 3.0 858.7 ± 1.0

1.33 -1.67 -1.37 -2.34 0.43

42-ju /woo 43-new 43-new 48-mel/woo1) 51-ano

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

860.9 ± 4.7 858.3 ± 1.8 854.0 ± 3.7 843.9 ± 15.5

104

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1,4-bis(1-Methylethyl)benzene

[100-18-5]

C12H18

MW = 162.27

78

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2830 (combined temperature ranges, weighted), σc,uw = 3.8432 · 10-1 (combined temperature ranges, unweighted). T = 287.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.07337 · 103 -7.34892 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

287.15 293.15 298.15 298.15 298.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

860.00 ± 1.00 857.60 ± 1.00 855.00 ± 2.00 855.00 ± 2.00 852.50 ± 1.00 860.00 ± 2.00 857.10 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-2.34 -0.33 0.74 0.74 -1.76 2.07 -0.83

{

34-kir/gra( ) 35-bac-2(∆) 37-mck/sow(✕ ) 38-oco/sow(✕ ) 38-oco/sow(✕ ) 40-tou/hen(✕ ) 43-new(∇)

T K

303.15 293.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

849.40 ± 1.00 859.90 ± 2.00 856.74 ± 1.00 859.20 ± 1.00 859.40 ± 1.00 856.77 ± 1.50 858.50 ± 1.00

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-1.18 1.97 -1.19 1.27 1.47 -1.16 0.57

43-new(∇) 47-bal/mar(✕ ) 48-mel/woo(✕ ) 51-ano(✕ ) 51-obo/gry(◆) 56-lib/lap(✕ ) 58-zav/sig( )

…

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00

ρ ± σ fit kg ⋅ m−3 867.60 ± 3.68 860.25 ± 1.06

T K

293.15 298.15

ρ ± σ fit kg ⋅ m−3 857.93 ± 1.28 854.26 ± 1.69

T K

300.00 310.00

ρ ± σ fit kg ⋅ m−3 852.90 ± 1.66 845.55 ± 1.22

cont.

Landolt-Börnstein New Series IV/8E

105

ρ

ρ

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(1,1-Dimethylbutyl)benzene

[1985-57-5]

C12H18

MW = 162.27

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.163. Coefficient ρ = A + BT A 1106.32 B -0.800 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

283.15 293.15 298.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

879.6 ± 1.0 871.8 ± 1.0 870.2 ± 3.0 868.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.20 0.00 2.40 0.20

10-sch-4 38-hus/fox 42-hus/kay1) 48-col/gar

Not included in calculation of linear coefficients.

cont. Landolt-Börnstein New Series IV/8E

79

106

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

(1,1-Dimethylbutyl)benzene (cont.) Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

882.3 ± 2.0 874.3 ± 1.5 871.8 ± 1.7 867.8 ± 2.0

1-Butyl-2,4-dimethylbenzene

[1601-73-6]

C12H18

MW = 162.27

80

C12H18

MW = 162.27

81

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

871.3 ± 1.0

39-nig/smi

1-Butyl-2,5-dimethylbenzene

[1601-71-4]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.286. Coefficient ρ = A + BT 1105.41 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

303.15 293.15 303.15 313.15

ρexp ± 2σ est −3

kg ⋅ m

862.9 ± 0.5 870.5 ± 0.6 862.9 ± 0.6 855.3 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

0.01 -0.42 -0.04 0.43

49-les/sur 49-qua 49-qua 49-qua

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00 320.00

ρexp ± 2σ est kg ⋅ m−3

873.4 ± 0.7 870.9 ± 0.6 866.9 ± 0.4 857.4 ± 0.4 849.4 ± 0.9

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-Butyl-3,4-dimethylbenzene

[15880-21-4]

107

C12H18

MW = 162.27

82

C12H18

MW = 162.27

83

C12H18

MW = 162.27

84

C12H18

MW = 162.27

85

C12H18

MW = 162.27

86

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

864.6 ± 1.0

66-mek/lyu

1,3-Diethyl-2,4-dimethylbenzene

[500033-58-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

897.6 ± 1.0

54-sch-1

1,4-Diethyl-2,5-dimethylbenzene

[500035-16-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.3 ± 2.0

18-fre/fle

(1,2-Dimethylbutyl)benzene

[66418-14-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

862.0 ± 2.0

55-mal/yav

(1,3-Dimethylbutyl)benzene

[19219-84-2]

Table 1. Experimental values with uncertainties. T K 288.15 288.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.4 ± 3.0 863.0 ± 3.0 854.7 ± 1.0

Landolt-Börnstein New Series IV/8E

04-kla 38-ber/low 51-lev/tan

108

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

(2,2-Dimethylbutyl)benzene

[28080-86-6]

C12H18

MW = 162.27

87

C12H18

MW = 162.27

88

C12H18

MW = 162.27

89

C12H18

MW = 162.27

90

Table 1. Experimental values with uncertainties. T K 292.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.0 ± 2.0 870.8 ± 1.0

09-taf/jur 57-pin/arr

(2,3-Dimethylbutyl)benzene

[19219-83-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

864.6 ± 1.0

57-pin/arr

(3,3-Dimethylbutyl)benzene

[17314-92-0]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

845.7 ± 1.0

50-ber/ber

1,2-Dimethyl-4-(1,1-dimethylethyl)benzene

[500019-03-4]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.374. Coefficient ρ = A + BT 1107.42 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

873.3 ± 1.0 869.0 ± 1.0 872.4 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.40 0.10 -0.50

53-sch/cla 54-car/eas 55-sch-1

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

875.4 ± 1.0 872.9 ± 1.0 868.9 ± 1.0

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1,3-Dimethyl-4-(1,1-dimethylethyl)benzene

[500033-54-5]

109

C12H18

MW = 162.27

91

C12H18

MW = 162.27

92

Table 1. Experimental values with uncertainties. T K

293.15 303.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

861.9 ± 1.0 937.2 ± 50.0

39-nig/smi 39-smi/per

1,3-Dimethyl-5-(1,1-dimethylethyl)benzene

[98-19-1]

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.212. Coefficient ρ = A + BT 1099.98 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 293.15 303.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

870.0 ± 1.0 865.6 ± 0.6 861.9 ± 4.0 865.6 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

0.54 0.14 4.44 0.14

T K

31-lur/gol 39-nig/smi 39-smi/per1) 53-rod/bel

293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

865.2 ± 0.6 865.3 ± 0.6 865.4 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-0.26 -0.16 -0.06

54-mcc/lie 55-sch-1 61-ste/ale

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

876.0 ± 1.3 868.0 ± 0.4 865.5 ± 0.2 861.5 ± 0.6

1,4-Dimethyl-2-(1,1-dimethylethyl)benzene

[500033-56-7]

Table 1. Experimental value with uncertainty. T K 302.65

ρexp ± 2σ est

Ref.

kg ⋅ m−3

875.7 ± 1.0

Landolt-Börnstein New Series IV/8E

55-bur/klo

C12H18

MW = 162.27

93

110

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-(1,1-Dimethylethyl)-3-ethylbenzene

[500033-44-3]

C12H18

MW = 162.27

94

[500033-50-3]

C12H18

MW = 162.27

95

C12H18

MW = 162.27

96

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.7 ± 0.6 863.5 ± 0.6 863.6 ± 0.6

51-ano 53-sch/cla Recommended

1-(1,1-Dimethylethyl)-4-ethylbenzene

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.132. Coefficient ρ = A + BT 1098.00 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 298.15 1)

ρexp ± 2σ est kg ⋅ m−3

863.4 ± 0.6 864.1 ± 2.0 859.7 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.08 0.62 0.22

51-ano 53-sch/cla1) 54-car/eas

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

866.0 ± 1.0 863.5 ± 1.0 859.5 ± 1.0

1,2-Dimethyl-4-(1-methylpropyl)benzene [76291-19-5] Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

875.6 ± 1.0

63-iof/yan

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1,3-Dimethyl-4-(1-methylpropyl)benzene [1483-60-9]

111

C12H18

MW = 162.27

97

C12H18

MW = 162.27

98

C12H18

MW = 162.27

99

C12H18

MW = 162.27

100

C12H18

MW = 162.27

101

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

866.5 ± 2.0

39-nig/smi

1,3-Dimethyl-4-(2-methylpropyl)benzene [500033-51-2] Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

868.9 ± 1.0

39-nig/smi

1,3-Dimethyl-5-(1-methylpropyl)benzene [500033-53-4] Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

861.6 ± 1.0

39-nig/smi

1,4-Dimethyl-2-(1-methylpropyl)benzene [3561-84-0] Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.4 ± 1.0

63-iof/yan

1-(1,1-Dimethylpropyl)3-methylbenzene

[33125-57-4]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.8672 (combined temperature ranges, weighted), σc,uw = 8.1647 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 253.15 to 373.15 K ρ = A + BT + CT 2 + DT 3 + … 1.09794 · 103 -7.83614 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

112

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-(1,1-Dimethylpropyl)-3-methylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

−3

kg ⋅ m

893.00 ± 3.00 888.80 ± 3.00 881.70 ± 3.00 877.40 ± 3.00 867.30 ± 3.00 860.20 ± 3.00 852.40 ± 3.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-6.57 -2.93 -2.20 1.34 -0.92 -0.19 -0.15

{) {) {) {) {) {) {)

22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1(

T K

323.15 333.15 343.15 353.15 363.15 373.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

845.40 ± 3.00 833.70 ± 3.00 830.40 ± 3.00 822.90 ± 3.00 816.10 ± 3.00 808.20 ± 3.00 873.90 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.68 -3.18 1.36 1.69 2.73 2.66 5.68

{) {) {) {) {) {) …)

22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 22-cha-1( 53-sch/cla(

ρ

ρ

253.15 263.15 273.15 283.15 293.15 303.15 313.15

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

113

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

902.04 ± 3.52 894.20 ± 3.14 886.36 ± 2.88 878.53 ± 2.72 870.69 ± 2.65 868.22 ± 2.65

250.00 260.00 270.00 280.00 290.00 293.15

ρ ± σ fit kg ⋅ m−3

T K

864.31 ± 2.66 862.86 ± 2.66 855.02 ± 2.73 847.18 ± 2.84 839.35 ± 2.96 831.51 ± 3.08

298.15 300.00 310.00 320.00 330.00 340.00

1-(1,1-Dimethylpropyl)4-methylbenzene

[4237-70-1]

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 823.68 ± 3.18 815.84 ± 3.23 808.00 ± 3.22 800.17 ± 3.14

C12H18

MW = 162.27

102

C12H18

MW = 162.27

103

C12H18

MW = 162.27

104

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

871.1 ± 1.0 859.6 ± 8.0 872.0 ± 1.0 863.9 ± 5.0 872.6 ± 1.0 871.9 ± 1.1

43-hen/kur 47-tsu1) 49-col/pic 52-kuc1) 53-sch/cla Recommended

Not included in calculation of recommended value.

1-(2,2-Dimethylpropyl)-4-methylbenzene [500021-47-6] Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

868.4 ± 1.0

1,2-Dipropylbenzene

54-car/eas

[17171-71-0]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.480. Coefficient ρ = A + BT A 1135.38 B -0.900

cont. Landolt-Börnstein New Series IV/8E

114

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1,2-Dipropylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

877.0 ± 2.0 871.3 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.96 -0.24

33-hal 57-els/str-1

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

883.4 ± 3.0 874.4 ± 2.0 871.5 ± 2.0 867.0 ± 3.0

1,3-Dipropylbenzene

[17171-72-1]

C12H18

MW = 162.27

105

C12H18

MW = 162.27

106

C12H18

MW = 162.27

107

Table 1. Experimental value with uncertainty. T K 290.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

912.6 ± 1.0

37-tsu/vik

1,4-Dipropylbenzene

[4815-57-0]

Table 1. Experimental values with uncertainties. T K 293.15 292.55

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.0 ± 2.0 856.3 ± 2.0

(1-Ethylbutyl)benzene

25-von/lec 25-von/lec

[4468-42-2]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.637. Coefficient ρ = A + BT 1123.13 A -0.900 B

cont. Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

115

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

297.15 298.15 298.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

863.0 ± 6.0 853.0 ± 2.0 858.0 ± 4.0 859.5 ± 1.0 859.6 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

7.30 -1.80 3.20 0.20 0.25

31-lev/mar-71) 39-spi/tin 42-hus/kay1) 43-gil/mea 53-lam/wis

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K 290.00 293.15 298.15

kg ⋅ m−3

862.1 ± 1.0 859.3 ± 1.0 854.8 ± 1.0

(2-Ethylbutyl)benzene

[19219-85-3]

C12H18

MW = 162.27

108

C12H18

MW = 162.27

109

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

868.16 ± 0.30 53-lam/wis

1-Ethyl-2-methyl-5-(1-methylethyl)benzene

[500034-51-5]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.092. Coefficient ρ = A + BT 1101.77 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

294.25 288.85 288.85 288.75

ρexp ± 2σ est −3

kg ⋅ m

866.5 ± 1.0 870.6 ± 1.0 870.6 ± 1.0 870.8 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.13 -0.09 -0.09 0.03

06-kla 06-kla 07-kla 07-kla

cont. Landolt-Börnstein New Series IV/8E

116

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-Ethyl-2-methyl-5-(1-methylethyl)-benzene (cont.) Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

877.8 ± 1.0 869.8 ± 1.0 867.2 ± 1.0 863.2 ± 1.0

1-Ethyl-3-methyl-6-(1-methylethyl)benzene

[500035-14-3]

C12H18

MW = 162.27

110

C12H18

MW = 162.27

111

C12H18

MW = 162.27

112

C12H18

MW = 162.27

113

Table 1. Experimental value with uncertainty. T K 288.85

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.6 ± 2.0

27-von

(1-Ethyl-1-methylpropyl)benzene

[1985-97-3]

Table 1. Experimental values with uncertainties. T K 288.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

877.3 ± 1.0 871.8 ± 1.0

10-sch-4 38-hus/fox

1-Ethyl-3-methyl-4-propylbenzene

[500035-13-2]

Table 1. Experimental value with uncertainty. T K

284.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

883.1 ± 2.0

24-mai

1-Ethyl-4-(1-methylpropyl)benzene

[6565-57-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

862.9 ± 1.0

41-wel/hen

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-(1-Ethylpropyl)-4-methylbenzene

[22975-58-2]

117

C12H18

MW = 162.27

114

C12H18

MW = 162.27

115

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.4 ± 1.0

43-hen/kur

Hexamethylbenzene

[87-85-4]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.0238 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.8235 · 10-2 (combined temperature ranges, unweighted). T = 454.50 to 511.50 K ρ = A + BT + CT 2 + DT 3 + … 1.36948 · 103 8.48578 · 10-4

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

454.50 458.80 466.10 470.50 475.00 478.10 483.10 487.00 1)

ρexp ± 2σ est −3

kg ⋅ m

817.80 ± 0.66 814.80 ± 0.66 808.90 ± 0.66 805.40 ± 0.66 801.40 ± 0.66 799.10 ± 0.66 795.10 ± 0.66 792.00 ± 0.66

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.34 0.20 0.24 0.28 -0.14 0.01 -0.08 -0.15

…) …) …) …) …) …) …) …)

85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee(

Not included in Fig. 1.

T K

489.90 496.00 501.20 504.90 508.20 510.70 511.50

ρexp ± 2σ est −3

kg ⋅ m

789.80 ± 0.66 785.90 ± 0.66 781.50 ± 0.66 778.50 ± 0.66 776.00 ± 0.66 774.70 ± 0.65 773.60 ± 0.65

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.12 0.63 0.14 -0.10 -0.16 0.37 -0.14

…) …) …) …) …) …)

85-shi/gee( 85-shi/gee1) 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee( 85-shi/gee(

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

450.00 460.00 470.00

ρ ± σ fit kg ⋅ m−3 821.89 ± 0.91 813.62 ± 0.72 805.52 ± 0.68

T K

480.00 490.00 500.00

ρ ± σ fit kg ⋅ m−3 797.60 ± 0.69 789.84 ± 0.69 782.26 ± 0.68

T K

510.00 520.00

ρ ± σ fit kg ⋅ m−3 774.84 ± 0.71 767.59 ± 0.88

cont.

Landolt-Börnstein New Series IV/8E

118

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

ρ

ρ

Hexamethylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Hexylbenzene

[1077-16-3]

C12H18

MW = 162.27

116

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.3926 (combined temperature ranges, weighted), σc,uw = 3.4996 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 367.95 K ρ = A + BT + CT 2 + DT 3 + … 1.06096 · 103 -6.90758 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

119

Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

273.15 288.15 303.15 293.15 303.15 282.15 302.85 322.95 342.85 367.95 293.15 293.15 1)

875.25 ± 2.00 863.92 ± 2.00 852.57 ± 2.00 859.20 ± 0.60 852.40 ± 0.60 868.50 ± 2.00 852.60 ± 2.00 837.10 ± 2.00 822.30 ± 2.00 802.70 ± 2.00 859.20 ± 1.00 859.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

2.97 2.00 1.01 0.73 0.84 2.44 0.83 -0.78 -1.84 -4.10 0.73 0.53

29-sim(✕ ) 29-sim1) 29-sim1) 39-sch/hop(◆) 39-sch/hop(◆) 40-ju /she(✕ ) 40-ju /she1) 40-ju /she(✕ ) 40-ju /she(✕ ) 40-ju /she(✕ ) 42-sch(✕ ) 43-gil/mea(✕ )

T K

293.15 293.15 315.15 335.95 359.65 293.15 293.15 293.15 298.15 293.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

859.50 ± 1.00 860.20 ± 2.00 844.10 ± 2.00 829.20 ± 2.00 811.60 ± 2.00 858.28 ± 0.40 858.28 ± 0.40 858.02 ± 0.40 854.28 ± 0.40 858.00 ± 0.40 854.26 ± 0.40

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.03 1.73 0.83 0.30 -0.93 -0.19 -0.19 -0.45 -0.73 -0.47 -0.75

43-gil/mea(✕ ) 48-vog-61) 48-vog-6(✕ ) 48-vog-6(✕ ) 48-vog-6(✕ ) 50-bry/tur( ) 53-tre( ) 61-jes/sta(∇) 61-jes/sta(∇) 63-mea/sta(∆) 63-mea/sta(∆)

{

…

Not included in Fig. 1.

ρ

ρ

Further references: [1893-bro, 1893-bro-1, 12-von/deu-1, 25-gil/bea-2, 39-den, 39-she/woo, 41-ju /woo, 46-gar, 48-tsc, 54-cym/dav, 54-naz/kak-3].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont. Landolt-Börnstein New Series IV/8E

120

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

Hexylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

874.46 ± 2.62 867.55 ± 1.42 860.64 ± 0.83 858.47 ± 0.75 855.01 ± 0.71

853.73 ± 0.72 846.83 ± 0.96 839.92 ± 1.40 833.01 ± 1.90 826.10 ± 2.31

300.00 310.00 320.00 330.00 340.00

1-(1-Methylethyl)-4-propylbenzene

T K

[22975-62-8]

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 819.20 ± 2.49 812.29 ± 2.31 805.38 ± 1.65 798.47 ± 2.00

C12H18

MW = 162.27

117

C12H18

MW = 162.27

118

MW = 162.27

119

Table 1. Experimental value with uncertainty. T K 281.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.0 ± 2.0

25-ber

1-(1-Methylethyl)-2,4,5trimethylbenzene

[10222-95-4]

Table 1. Experimental value with uncertainty. T K 294.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

879.5 ± 2.0

06-von/koc

1-(1-Methylethyl)-2,4,6trimethylbenzene

[500015-02-1]

C12H18

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

888.0 ± 1.0 863.2 ± 20.0 886.2 ± 2.0 887.6 ± 1.2

53-ano-10 62-lev/kos1) 63-iof/yan Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 1-Methyl-4-(1-methylbutyl)-benzene

[13633-04-0]

C12H18

121 MW = 162.27

120

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.1 ± 1.0 866.3 ± 3.0 863.2 ± 1.0 863.1 ± 1.0

41-wel/hen 65-zav/kog1) 66-yan/vdo Recommended

Not included in calculation of recommended value.

1-Methyl-4-(2-methylbutyl)benzene

[17392-46-0]

C12H18

MW = 162.27

121

C12H18

MW = 162.27

122

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

858.2 ± 1.0

61-ale/ste

(1-Methylpentyl)benzene

[6031-02-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.8430 (combined temperature ranges, weighted), σc,uw = 7.2503 · 10-1 (combined temperature ranges, unweighted). T = 277.15 to 298.15 K ρ = A + BT + CT 2 + DT 3 + … 1.17868 · 103 -1.08652

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 277.15 296.65 298.15

ρexp ± 2σ est −3

kg ⋅ m

869.00 ± 2.00 876.00 ± 2.00 858.10 ± 2.00 855.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

3.40 -1.55 1.74 0.27

T K

ρexp ± 2σ est −3

kg ⋅ m

1893-bro(✕ ) 293.15 858.65 ± 1.00 30-til/kur(◆) 293.15 859.00 ± 1.00 30-til/kur(◆) 293.15 859.00 ± 1.00 31-lev/mar-7( )

{

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-1.52 -1.17 -1.17

42-hus/kay(∆) 43-gil/mea(∇) 86-pla/sha( )

…

cont.

Landolt-Börnstein New Series IV/8E

122

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

ρ

ρ

(1-Methylpentyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

885.32 ± 3.04 874.45 ± 2.17 863.59 ± 1.49

(2-Methylpentyl)benzene

860.17 ± 1.37 854.73 ± 1.31 852.72 ± 1.34

293.15 298.15 300.00

[39916-61-5]

T K

310.00

C12H18

ρ ± σ fit kg ⋅ m−3 841.86 ± 1.86

MW = 162.27

123

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

858.4 ± 1.0

12-bje

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 (3-Methylpentyl)benzene

[54410-69-4]

123

C12H18

MW = 162.27

124

C12H18

MW = 162.27

125

C12H18

MW = 162.27

126

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.025. Coefficient ρ = A + BT A 1123.31 B -0.900 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

287.65 298.15 298.15 1)

ρexp ± 2σ est kg ⋅ m−3

ρexp − ρcalc Ref. kg ⋅ m−3

864.4 ± 1.0 855.0 ± 1.0 858.5 ± 3.0

-0.02 0.03 3.53

04-kla/sau 35-lev/mar-2 39-rot/lev1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

871.3 ± 1.3 862.3 ± 1.0 859.5 ± 1.0 855.0 ± 1.0

280.00 290.00 293.15 298.15

(4-Methylpentyl)benzene

[4215-86-5]

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.8 ± 2.0

1883-sch-2

1-Methyl-2-pentylbenzene

[1595-07-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

872.5 ± 2.0

Landolt-Börnstein New Series IV/8E

34-lov/cam

124

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1-Methyl-3-pentylbenzene

[1595-08-0]

C12H18

MW = 162.27

127

[1595-09-1]

C12H18

MW = 162.27

128

[500035-15-4]

C12H18

MW = 162.27

129

C12H18

MW = 162.27

130

Table 1. Experimental values with uncertainties. T K 295.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.9 ± 4.0 864.7 ± 3.0 860.0 ± 3.0

1884-ess/gos 1884-ess/gos 34-lov/cam

1-Methyl-4-pentylbenzene Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

857.0 ± 1.0 858.2 ± 1.0 858.2 ± 1.0 857.8 ± 1.0

34-lov/cam 41-sch/sch 41-sch/sch-1 Recommended

1-Propyl-2,4,5-trimethylbenzene

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

887.0 ± 2.0

28-hol

1-Propyl-2,4,6-trimethylbenzene

[500033-57-8]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.498. Coefficient ρ = A + BT 1101.03 A -0.760 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15 293.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

877.3 ± 2.0 875.7 ± 2.0 878.2 ± 1.0 874.4 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.94 1.26 -0.04 -0.04

1895-toh 04-kla/sta 56-lib/pry 56-lib/pry cont.

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

125

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

880.6 ± 0.8 878.2 ± 0.6 874.4 ± 0.6

290.00 293.15 298.15

1,2,4-Triethylbenzene

[877-44-1]

C12H18

MW = 162.27

131

C12H18

MW = 162.27

132

Table 1. Experimental values with uncertainties. T K

290.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

881.9 ± 3.0 882.0 ± 4.0 873.8 ± 2.0

03-kla/kei 37-kur/hea 50-nic/hei

1,3,5-Triethylbenzene

[102-25-0]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 9.2590 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.7560 · 10-1 (combined temperature ranges, unweighted). T = 273.00 to 473.11 K ρ = A + BT + CT 2 + DT 3 + … 1.04527 · 103 -4.89118 · 10-1 -4.58415 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 290.15 293.15 273.00 298.15 293.15 293.15 293.15 323.14 1)

ρexp ± 2σ est −3

kg ⋅ m

863.30 ± 1.00 863.60 ± 1.00 863.00 ± 1.00 877.20 ± 1.50 856.80 ± 1.50 862.10 ± 0.60 862.40 ± 0.60 863.30 ± 1.00 839.10 ± 0.32

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.81 -1.16 0.51 -0.37 -1.89 -0.39 -0.09 0.81 -0.25

1899-kla(✕ ) 03-kla/kei(✕ ) 37-kur/hea(∇) 38-dil/rei(✕ ) 38-dil/rei1) 46-ano-8(∆) 51-chi( ) 54-mcc/lie(◆) 97-ste/chi( )

{

…

T K

348.13 373.12 398.12 423.11 448.11 473.11 668.30 675.30 678.80

ρexp ± 2σ est −3

kg ⋅ m

819.50 ± 0.35 799.40 ± 0.37 778.30 ± 0.40 755.20 ± 0.42 733.70 ± 0.45 711.80 ± 0.47 368.80 ± 2.00 360.30 ± 3.00 274.80 ± 4.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.07 0.45 0.42 -1.05 -0.34 0.55

…) …) …) …) …) …)

97-ste/chi( 97-ste/chi( 97-ste/chi( 97-ste/chi( 97-ste/chi( 97-ste/chi( 97-ste/chi2) 97-ste/chi2) 97-ste/chi2)

Not included in Fig. 1. 2) Insufficient data to fit these points

cont.

Landolt-Börnstein New Series IV/8E

126

2.2 Alkylbenzenes (CnH2n-6), C11 - C12

1,3,5-Triethylbenzene (cont.)

ρ

ρ

Further references: [34-war/ful, 48-bal/mar].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15 300.00 310.00 320.00

ρ ± σ fit kg ⋅ m−3 879.79 ± 1.55 872.37 ± 1.22 864.87 ± 0.95 862.49 ± 0.88 858.69 ± 0.77 857.27 ± 0.74 849.59 ± 0.57 841.81 ± 0.45

T K

330.00 340.00 350.00 360.00 370.00 380.00 390.00 400.00

ρ ± σ fit kg ⋅ m−3 833.94 ± 0.37 825.97 ± 0.33 817.92 ± 0.32 809.77 ± 0.32 801.54 ± 0.34 793.21 ± 0.37 784.79 ± 0.40 776.27 ± 0.44

T K

410.00 420.00 430.00 440.00 450.00 460.00 470.00 480.00

ρ ± σ fit kg ⋅ m−3 767.67 ± 0.47 758.97 ± 0.51 750.18 ± 0.54 741.31 ± 0.56 732.33 ± 0.57 723.27 ± 0.56 714.12 ± 0.55 704.87 ± 0.53

Landolt-Börnstein New Series IV/8E

2.2 Alkylbenzenes (CnH2n-6), C11 - C12 (1,1,2-Trimethylpropyl)-benzene

[26356-11-6]

127

C12H18

MW = 162.27

133

C12H18

MW = 162.27

134

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.4 ± 1.0 883.5 ± 2.0 881.4 ± 1.0 884.3 ± 2.0 878.0 ± 4.0 881.9 ± 1.0

38-hus/fox 46-hus/bar 53-hus/van 54-sch/wes 55-mal/yav1) Recommended

Not included in calculation of recommended value.

(1,2,2-Trimethylpropyl)benzene

[19262-20-5]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.000. Coefficient ρ = A + BT 1138.34 A -0.900 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 293.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

876.3 ± 5.0 874.5 ± 0.8 870.0 ± 0.8

ρexp − ρcalc Ref. kg ⋅ m−3

6.30 -0.00 -0.00

42-hus/kay1) 54-sch/wes 56-cor/tie

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

877.3 ± 0.6 874.5 ± 0.5 870.0 ± 1.2

Empty page 128

2.3 Alkylbenzenes (CnH2n-6), C13

129

2.3 Alkylbenzenes (CnH2n-6), C13 1,3-bis(1-Methylethyl)-2-methylbenzene

[500035-20-1]

C13H20

MW = 176.30

135

C13H20

MW = 176.30

136

C13H20

MW = 176.30

137

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

876.8 ± 2.0

35-des-3

1,3-bis(1-Methylethyl)-4-methylbenzene

[500013-44-5]

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 1.157. Coefficient ρ = A + BT A 1087.56 B -0.760 Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp − ρcalc Ref. ρexp ± 2σ est T kg ⋅ m−3 K kg ⋅ m−3 273.15 293.15 293.15 293.15 293.15 293.15

880.0 ± 2.0 866.4 ± 2.0 863.6 ± 2.0 865.6 ± 2.0 863.0 ± 2.0 865.2 ± 2.0

0.03 1.63 -1.17 0.83 -1.77 0.43

1895-bar/bou 35-des-2 48-pin/wei 54-car/eas 54-car/eas 59-rom/gri

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

882.4 ± 2.3 874.8 ± 1.5 867.2 ± 1.2 864.8 ± 1.2 861.0 ± 1.4

270.00 280.00 290.00 293.15 298.15

1,3-bis(1-Methylethyl)-5-methylbenzene

[3055-14-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

857.2 ± 0.6

Landolt-Börnstein New Series IV/8E

54-mcc/lie

130

2.3 Alkylbenzenes (CnH2n-6), C13

1-Butyl-4-ethyl-2-methylbenzene

[500035-17-6]

C13H20

MW = 176.30

138

C13H20

MW = 176.30

139

Table 1. Experimental value with uncertainty. T K 284.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.2 ± 2.0

24-mai

1-Butyl-2-propylbenzene

[71521-82-9]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

866.2 ± 1.0

57-els/str-1

(1,1-Diethylpropyl)benzene

[4170-84-7]

C13H20

MW = 176.30

140

Table 1. Experimental and recommended values with uncertainties. T K 273.15 283.75 290.95 304.35 315.65 325.35 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

882.6 ± 4.0 874.7 ± 4.0 869.2 ± 4.0 859.3 ± 4.0 851.3 ± 4.0 843.7 ± 4.0

1)

1879-cia 1879-cia1) 1879-cia1) 1879-cia1) 1879-cia1) 1879-cia1)

T K 348.25 298.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

826.2 ± 4.0 865.6 ± 4.0 878.6 ± 5.0 889.8 ± 0.4 889.8 ± 0.4

1879-cia1) 10-sch-41) 38-hus/fox1) 52-ano-6 Recommended

Not included in calculation of recommended value.

1-(1,1-Dimethylethyl)-4-ethyl3-methylbenzene

[500005-72-1]

C13H20

MW = 176.30

141

C13H20

MW = 176.30

142

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.9 ± 1.0

55-sch-1

1-(1,1-Dimethylethyl)-3(1-methylethyl)benzene

[20033-12-9]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

854.7 ± 1.0

52-hen/dri

Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13 1-(1,1-Dimethylethyl)-4(1-methylethyl)benzene

[4132-49-4]

131

C13H20

MW = 176.30

143

C13H20

MW = 176.30

144

C13H20

MW = 176.30

145

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.040. Coefficient ρ = A + BT A 1078.11 B -0.740

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

864.8 ± 2.0 857.5 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.08 0.02

34-bar-2 52-hen/dri

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

870.9 ± 1.2 863.5 ± 0.8 861.2 ± 0.8 857.5 ± 0.8

1-(1,1-Dimethylethyl)-4-propylbenzene

[58567-80-9]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

858.2 ± 1.0

58-pin/sch

1-(1,1-Dimethylethyl)2,3,5-trimethylbenzene

[500014-34-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

897.7 ± 2.0

Landolt-Börnstein New Series IV/8E

54-car/eas

132

2.3 Alkylbenzenes (CnH2n-6), C13

1,2-Dimethyl-4-(1-methylbutyl)benzene

[13633-05-1]

C13H20

MW = 176.30

146

C13H20

MW = 176.30

147

C13H20

MW = 176.30

148

C13H20

MW = 176.30

149

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.4 ± 1.0

66-yan/vdo

1,3-Dimethyl-4-(1-methylbutyl)benzene

[13633-06-2]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.2 ± 1.0

66-yan/vdo

1,4-Dimethyl-5-(1-methylbutyl)benzene

[942-08-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

868.6 ± 1.0

66-yan/vdo

(1,1-Dimethylpentyl)benzene

[19219-89-7]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.141. Coefficient ρ = A + BT 1143.30 A -0.920 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

873.7 ± 1.0 873.7 ± 1.0 868.8 ± 1.0 887.3 ± 10.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.10 0.10 -0.20 13.70

38-hus/fox 39-den 42-hus/kay 46-hus/bar1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

876.5 ± 1.3 873.6 ± 0.6 869.0 ± 0.9 Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13 (1,2-Dimethylpentyl)benzene

[500034-34-4]

133

C13H20

MW = 176.30

150

C13H20

MW = 176.30

151

C13H20

MW = 176.30

152

C13H20

MW = 176.30

153

C13H20

MW = 176.30

154

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

876.7 ± 2.0

42-hus/kay

(1,4-Dimethylpentyl)benzene

[24000-19-9]

Table 1. Experimental and recommended values with uncertainties. T K 288.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.6 ± 10.0 877.7 ± 2.0 877.7 ± 2.0

02-kla-11) 42-hus/kay Recommended

Not included in calculation of recommended value.

(2,4-Dimethylpentyl)benzene

[54518-00-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.59 ± 0.30 53-lam/wis

(4,4-Dimethylpentyl)benzene

[52809-43-5]

Table 1. Experimental and recommended values with uncertainties. T K 293.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

944.3 ± 50.0 847.7 ± 1.0 847.7 ± 1.0

30-hil/bru1) 50-ber/ber Recommended

Not included in calculation of recommended value.

1,4-Dimethyl-2-pentylbenzene

[3042-52-2]

Table 1. Experimental value with uncertainty. T K

303.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

862.1 ± 0.5

Landolt-Börnstein New Series IV/8E

49-les/sur

134

2.3 Alkylbenzenes (CnH2n-6), C13

1-(1,1-Dimethylpropyl)-4-ethylbenzene

[1130-58-1]

C13H20

MW = 176.30

155

C13H20

MW = 176.30

156

C13H20

MW = 176.30

157

C13H20

MW = 176.30

158

C13H20

MW = 176.30

159

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

857.2 ± 1.0

58-pin/sch

1-(2,2-Dimethylpropyl)-4-ethylbenzene

[500034-50-4]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

870.4 ± 1.0

54-car/eas

1,3-Dipropyl-4-methylbenzene

[100451-97-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.4 ± 2.0

59-rom/gri

1-(1-Ethylbutyl)-4-methylbenzene

[500033-59-0]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

853.6 ± 2.0

39-spi/tin

(1-Ethyl-1,2-dimethylpropyl)benzene

[69719-07-9]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.3 ± 1.0 882.0 ± 1.0 881.1 ± 1.2

38-hus/fox 53-hus/van Recommended

Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13 (1-Ethyl-2,2-dimethylpropyl)benzene

[500035-51-8]

135

C13H20

MW = 176.30

160

[4468-40-0]

C13H20

MW = 176.30

161

[17689-64-4]

C13H20

MW = 176.30

162

C13H20

MW = 176.30

163

C13H20

MW = 176.30

164

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.0 ± 1.0

42-hus/kay

(1-Ethyl-1-methylbutyl)benzene Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.9 ± 2.0 878.6 ± 1.0 879.3 ± 1.2

04-dar 38-hus/fox Recommended

(1-Ethyl-3-methylbutyl)benzene

Table 1. Experimental values with uncertainties. T K 298.15 293.15 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

865.4 ± 2.0 853.9 ± 2.0 850.1 ± 2.0

42-hus/kay 59-goe/mul 59-goe/mul

1-Ethyl-4-(1-methylbutyl)benzene

[92102-07-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

862.6 ± 1.0

41-wel/hen

1-Ethyl-3-methyl-4-(2-methylpropyl)benzene

[500035-18-7]

Table 1. Experimental value with uncertainty. T K

284.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

886.3 ± 2.0

Landolt-Börnstein New Series IV/8E

24-mai

136

2.3 Alkylbenzenes (CnH2n-6), C13

(1-Ethylpentyl)benzene

[2132-85-6]

C13H20

MW = 176.30

165

C13H20

MW = 176.30

166

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.310. Coefficient ρ = A + BT A 1076.53 B -0.740

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 298.15 298.15 298.15 298.15 293.15

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

kg ⋅ m

−3

856.0 ± 1.0 856.0 ± 1.0 855.8 ± 1.0 855.8 ± 1.0 856.9 ± 2.0 859.0 ± 1.5

0.10 0.10 -0.10 -0.10 1.00 -0.60

1887-fri/cra 28-dec 28-hol 39-rot/lev 42-hus/kay 48-naz/kot

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

861.9 ± 1.0 859.6 ± 1.0 855.9 ± 1.0

Heptylbenzene

[1078-71-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.8983 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.1785 · 10-1 (combined temperature ranges, unweighted). Coefficient A B C

T = 281.55 to 367.95 K ρ = A + BT + CT 2 + DT 3 + … 1.04856 · 103 -5.65237 · 10-1 -2.74315 · 10-4

cont.

Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13

137

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 303.15 293.15 303.15 281.55 1)

ρexp ± 2σ est −3

kg ⋅ m

859.20 ± 0.40 852.20 ± 0.40 859.20 ± 0.40 852.20 ± 0.40 867.80 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.08 0.20 -0.08 0.20 0.13

{ {

39-sch-7( ) 39-sch-7( ) 39-sch/hop( ) 39-sch/hop( ) 40-ju /she(∆)

… …

T K

302.85 322.95 342.85 367.95

ρexp ± 2σ est −3

kg ⋅ m

852.00 ± 1.00 837.00 ± 1.00 822.10 ± 1.00 803.90 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.22 -0.40 -0.42 0.46

40-ju /she1) 40-ju /she(∆) 40-ju /she(∆) 40-ju /she(∆)

Not included in Fig. 1.

ρ

ρ

Further references: [12-von/deu-1, 24-eis/sch, 34-lov/cam, 39-den, 39-she/woo, 41-ju /woo, 42-sch, 43gil/mea, 46-gar, 49-lut, 50-naz/fis-1, 74-gav/bul].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

138

2.3 Alkylbenzenes (CnH2n-6), C13

Heptylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

868.79 ± 1.16 861.57 ± 0.62 859.28 ± 0.53 855.65 ± 0.45 854.30 ± 0.45

846.97 ± 0.56 839.59 ± 0.77 832.16 ± 1.00 824.67 ± 1.20 817.12 ± 1.30

310.00 320.00 330.00 340.00 350.00

1-Hexyl-4-methylbenzene

[1595-01-3]

T K

360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 809.52 ± 1.27 801.87 ± 1.12 794.16 ± 1.12

C13H20

MW = 176.30

167

C13H20

MW = 176.30

168

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.9 ± 2.0

41-sch/sch-1

[1-(1-Methylethyl)butyl]benzene

[24000-17-7]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.050. Coefficient ρ = A + BT A 1089.61 B -0.780

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 293.15

ρexp ± 2σ est kg ⋅ m−3

857.1 ± 2.0 860.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.05 -0.05

59-goe/mul 59-goe/mul

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

863.4 ± 1.0 861.0 ± 1.0 857.0 ± 1.0 Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13 1-(1-Methylethyl)-4-(1-methylpropyl)benzene

[27702-09-6]

139

C13H20

MW = 176.30

169

C13H20

MW = 176.30

170

C13H20

MW = 176.30

171

Table 1. Experimental values with uncertainties. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

836.1 ± 1.0

58-pin/sch

1-(1-Methylethyl)-4-(2-methylpropyl)benzene

[500035-55-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

858.9 ± 1.0

57-shv

(1-Methylhexyl)benzene

[2132-84-5]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 5.5579 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.7790 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 298.15 K ρ = A + BT + CT 2 + DT 3 + … 1.08985 · 103 -7.79299 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 294.65 293.15

ρexp ± 2σ est −3

kg ⋅ m

877.20 ± 1.00 859.80 ± 1.00 861.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.22 -0.43 -0.40

29-kas(∇) 29-kas(∇) 38-til( )

…

T K

298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

858.50 ± 1.00 861.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.00 -0.40

{

42-hus/kay( ) 42-ju /woo(∆)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 879.44 ± 1.44 871.64 ± 1.13 863.85 ± 1.00

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 861.40 ± 1.01 857.50 ± 1.07 856.06 ± 1.11

T K

310.00

ρ ± σ fit kg ⋅ m−3 848.26 ± 1.41

cont.

Landolt-Börnstein New Series IV/8E

140

2.3 Alkylbenzenes (CnH2n-6), C13

ρ

ρ

(1-Methylhexyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(2-Methylhexyl)benzene

[3200-11-1]

C13H20

MW = 176.30

172

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.050. Coefficient ρ = A + BT A 1078.64 B -0.760 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

855.8 ± 2.0 852.1 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.05 0.05

59-goe/mul 59-goe/mul cont.

Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13

141

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

858.2 ± 1.0 855.9 ± 1.0 852.0 ± 1.0

290.00 293.15 298.15

(3-Methylhexyl)benzene

[92102-12-0]

C13H20

MW = 176.30

173

C13H20

MW = 176.30

174

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

853.5 ± 1.0

57-pin/arr

(5-Methylhexyl)benzene

[17697-65-3]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.000. Coefficient ρ = A + BT 1077.49 A -0.760 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

854.7 ± 2.0 850.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.00 -0.00

Table 3. Recommended values. T K

290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

857.1 ± 1.0 854.7 ± 1.0 850.9 ± 1.0

59-goe/mul 59-goe/mul

142

2.3 Alkylbenzenes (CnH2n-6), C13

1-Methyl-4-(1-methylethyl)-2propylbenzene

[500035-19-8]

C13H20

MW = 176.30

! 175

C13H20

MW = 176.30

176

C13H20

MW = 176.30

177

C13H20

MW = 176.30

178

C13H20

MW = 176.30

179

Table 1. Experimental and recommended values with uncertainties. T K 290.15 288.15 288.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

902.0 ± 30.0 868.5 ± 2.0 868.5 ± 2.0

1892-cla1) 07-kla Recommended

Not included in calculation of recommended value.

[2-Methyl-1-(1-methylethyl)propyl]benzene

[21777-84-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.77 ± 0.30 53-lam/wis

1-Methyl-4-(4-methylpentyl)benzene

[500034-00-4]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

855.6 ± 2.0

59-rom/gri

1-(1-Methylpropyl)-2,4,6trimethylbenzene

[500029-97-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

886.5 ± 1.0

63-iof/yan

1-(2-Methylpropyl)-2,4,6trimethylbenzene

[500035-21-2]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

878.2 ± 2.0

04-kla/sta

Landolt-Börnstein New Series IV/8E

2.3 Alkylbenzenes (CnH2n-6), C13 (1-Propylbutyl)benzene

[2132-86-7]

143

C13H20

MW = 176.30

180

C13H20

MW = 176.30

181

C13H20

MW = 176.30

182

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

861.3 ± 1.0

42-hus/kay

(1,1,2-Trimethylbutyl)benzene

[69719-09-1]

Table 1. Experimental values with uncertainties. T K

293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.1 ± 2.0 880.1 ± 2.0

38-hus/fox 53-hus/van

(1,1,3-Trimethylbutyl)benzene

[4406-52-4]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.566. Coefficient ρ = A + BT 1077.40 A -0.700 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 293.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

ρexp − ρcalc Ref. kg ⋅ m−3

874.1 ± 2.0 872.4 ± 1.0 863.8 ± 4.0 872.4 ± 1.0

-1.60 0.20 -8.40 0.20

10-sch-4 38-hus/fox 41-lev/pan1) 44-hus/awu

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

881.4 ± 12.6 874.4 ± 2.7 872.2 ± 0.8 868.7 ± 5.6

Empty page 144

2.4 Alkylbenzenes (CnH2n-6), C14

145

2.4 Alkylbenzenes (CnH2n-6), C14 1,3-bis(1,1-Dimethylethyl)benzene

[1014-60-4]

C14H22

MW = 190.33

183

C14H22

MW = 190.33

184

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.100. Coefficient ρ = A + BT A 1093.32 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

kg ⋅ m

−3

858.9 ± 0.7 854.7 ± 0.7

0.10 -0.10

49-pin/cza 49-pin/cza

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

861.3 ± 0.5 858.8 ± 0.5 854.8 ± 0.5

1,4-Bis(1,1-dimethylethyl)benzene

[1012-72-2]

Tc = 708.00 K [95-tso/amb] ρc = 260.00 kg·m-3 [95-tso/amb] Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction): σ = 1.5168 (low temperature range), σc,w = (8.4428 · 10-1 combined temperature ranges, weighted), σc,uw = 3.9876 · 10-1 (combined temperature ranges, unweighted). O

Coefficient

A B C D

T = 293.15 to 566.40 K T = 566.40 to 708.00 K ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)] [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] 2 9.52253 · 10 -1.52237 -7.50323 · 10-2 6.73307 · 10-2 -4 -8.59914 · 10 -6.79482 · 10-4 2.05550 · 10-6 cont.

Landolt-Börnstein New Series IV/8E

146

2.4 Alkylbenzenes (CnH2n-6), C14

1,4-Bis(1,1-dimethylethyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

293.15 373.12 398.12 423.11 448.11 473.11 1)

854.70 ± 1.00 805.90 ± 0.25 785.70 ± 0.27 765.80 ± 0.29 745.70 ± 0.32 724.90 ± 0.34

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-1.66 1.36 -0.39 -0.76 -0.26 0.62

…) {) {) {) {) {)

43-hen/aus( 97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1(

T K

498.11 523.11 656.00 700.30 707.00

ρexp ± 2σ est −3

kg ⋅ m

702.60 ± 0.36 677.70 ± 0.39 504.90 ± 1.00 351.60 ± 2.00 313.00 ± 5.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.08 0.01 0.00 -0.12 3.42

{) {) {) {) {)

97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1( 97-ste/chi-1(

Not included in Fig. 1.

ρ

ρ

Further references: [38-hus/fox].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14

147

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

858.18 ± 1.20 856.36 ± 1.14 853.44 ± 1.05 852.35 ± 1.02 846.36 ± 0.86 840.19 ± 0.72 833.85 ± 0.60 827.34 ± 0.50 820.65 ± 0.43 813.80 ± 0.36 806.77 ± 0.32 799.57 ± 0.30 792.20 ± 0.28 784.65 ± 0.28 776.94 ± 0.29

290.00 293.15 298.15 300.00 310.00 320.00 330.00 340.00 350.00 360.00 370.00 380.00 390.00 400.00 410.00

ρ ± σ fit kg ⋅ m−3

T K

769.05 ± 0.30 760.99 ± 0.31 752.76 ± 0.33 744.36 ± 0.35 735.78 ± 0.36 727.03 ± 0.38 718.11 ± 0.39 709.02 ± 0.41 699.76 ± 0.42 690.32 ± 0.43 680.72 ± 0.44 670.94 ± 0.46 660.99 ± 0.50 650.86 ± 0.70 640.57 ± 1.20

420.00 430.00 440.00 450.00 460.00 470.00 480.00 490.00 500.00 510.00 520.00 530.00 540.00 550.00 560.00

1,2-bis(1-Methylethyl)-4,5dimethylbenzene

[500035-54-1]

T K

570.00 580.00 590.00 600.00 610.00 620.00 630.00 640.00 650.00 660.00 670.00 680.00 690.00 700.00

ρ ± σ fit kg ⋅ m−3 630.77 ± 2.83 627.07 ± 4.09 626.37 ± 5.00 624.32 ± 4.70 617.83 ± 3.87 605.04 ± 3.00 585.17 ± 2.41 558.51 ± 2.00 526.21 ± 1.65 490.20 ± 1.30 452.94 ± 1.30 417.05 ± 1.40 384.43 ± 1.62 352.80 ± 2.20

C14H22

MW = 190.33

185

C14H22

MW = 190.33

186

C14H22

MW = 190.33

187

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.9 ± 1.0

60-top/vol

1,5-bis(1-Methylethyl)-2,4dimethylbenzene

[500035-56-3]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

872.0 ± 1.0

60-top/vol

1,4-bis(1-Methylpropyl)benzene

[1014-41-1]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.302. Coefficient ρ = A + BT A 1063.26 B -0.700 cont.

Landolt-Börnstein New Series IV/8E

148

2.4 Alkylbenzenes (CnH2n-6), C14

1,4-bis(1-Methylpropyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 293.15 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

854.8 ± 1.0 862.0 ± 3.0 868.6 ± 10.0 857.3 ± 2.0 861.3 ± 3.0 861.2 ± 3.0 858.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.24 3.94 10.54 -0.76 3.24 3.14 -0.06

37-mck/sow 40-tou/hen1) 41-wel/hen1) 43-hen/aus 47-bal/mar1) 49-sid/vdo1) 56-top/kur

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

860.3 ± 1.2 858.1 ± 1.0 854.6 ± 1.0

1,4-bis(2-Methylpropyl)benzene

[17171-78-7]

C14H22

MW = 190.33

188

C14H22

MW = 190.33

189

C14H22

MW = 190.33

190

Table 1. Experimental values with uncertainties. T K 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

845.6 ± 3.0 857.8 ± 3.0

43-hen/aus 57-shv

1-Butyl-4-(1,1-dimethylethyl)benzene

[14011-00-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

859.5 ± 2.0

43-hen/aus

1-Butyl-2-methyl-5-(1-methylethyl)benzene

[500034-36-6]

Table 1. Experimental values with uncertainties. T K 290.15 288.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

892.0 ± 3.0 908.2 ± 3.0

1892-cla 49-mal/bar Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14 1-Butyl-4-(1-methylpropyl)benzene

[37909-91-4]

149

C14H22

MW = 190.33

191

[62449-91-6]

C14H22

MW = 190.33

192

[500027-97-4]

C14H22

MW = 190.33

193

C14H22

MW = 190.33

194

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

857.0 ± 2.0

43-hen/aus

1-Butyl-4-(2-methylpropyl)benzene

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

850.8 ± 2.0 855.5 ± 2.0 853.1 ± 2.6

43-hen/aus 57-shv Recommended

1,2-Dibutylbenzene

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

864.0 ± 1.0

57-els/str-1

1,4-Dibutylbenzene

[1571-86-4]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

855.6 ± 2.0 855.5 ± 2.0 858.4 ± 2.0 856.5 ± 2.3

Landolt-Börnstein New Series IV/8E

43-hen/aus 45-mat/gro 60-pet/nik Recommended

150

2.4 Alkylbenzenes (CnH2n-6), C14

(1,2-Diethylbutyl)benzene

[500015-99-6]

C14H22

MW = 190.33

195

C14H22

MW = 190.33

196

C14H22

MW = 190.33

197

C14H22

MW = 190.33

198

C14H22

MW = 190.33

199

Table 1. Experimental and recommended values with uncertainties. T K

289.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

874.8 ± 4.0 878.8 ± 2.0 875.2 ± 2.0 877.0 ± 2.4

14-hal1) 44-hus 48-hus/goe Recommended

Not included in calculation of recommended value.

(2,2-Diethylbutyl)benzene

[500034-35-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

867.0 ± 2.0

55-mal/yav

1,2-Diethyl-4-(1,1-dimethylethyl)benzene

[65276-17-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.6 ± 1.0

55-sch-1

1, 1-Diethyl-1-(1-methylethyl)benzene

[500017-75-4]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.6 ± 10.0 857.3 ± 2.0 857.3 ± 2.0

44-hus1) 48-hus/goe Recommended

Not included in calculation of recommended value.

1,3-Dimethyl-5-(1,1-dimethylethyl)2-ethylbenzene

[500034-40-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

882.0 ± 1.0

54-sch-1

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14 (1,1-Dimethyl-2-ethylbutyl)benzene

[500017-20-9]

151

C14H22

MW = 190.33

200

C14H22

MW = 190.33

201

C14H22

MW = 190.33

202

C14H22

MW = 190.33

203

C14H22

MW = 190.33

204

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.2 ± 1.0

41-hus/gui

(1,2-Dimethyl-1-ethylbutyl)-benzene

[500017-14-1]

Table 1. Experimental recommended values with uncertainties. T K 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.7 ± 10.0 859.0 ± 2.0 859.0 ± 2.0

44-hus1) 48-hus/goe Recommended

Not included in calculation of recommended value.

(1,3-Dimethyl-1-ethylbutyl)-benzene

[500016-99-9]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.0 ± 3.0 872.2 ± 2.0 872.2 ± 2.0

44-hus1) 48-hus/goe Recommended

Not included in calculation of recommended value.

1-(1,1-Dimethylethyl)-2-methyl-5(1-methylethyl)benzene

[29577-13-7]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.2 ± 1.0

56-sch-2

1-(1,1-Dimethylethyl)-3-methyl-4(1-methylethyl)benzene

[500034-39-9]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

873.0 ± 1.0

Landolt-Börnstein New Series IV/8E

55-sch-1

152

2.4 Alkylbenzenes (CnH2n-6), C14

1-(1,1-Dimethylethyl)-4(1-methylpropyl)benzene

[25027-33-2]

C14H22

MW = 190.33

205

C14H22

MW = 190.33

206

C14H22

MW = 190.33

207

C14H22

MW = 190.33

208

C14H22

MW = 190.33

209

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.7 ± 1.0

43-hen/aus

1-(1,1-Dimethylethyl)-4(2-methylpropyl)benzene

[68018-45-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

854.7 ± 1.0

43-hen/aus

(1,1-Dimethylhexyl)benzene

[16252-11-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.6 ± 1.0

41-hus/gui

(3,3-Dimethylhexyl)benzene

[10509-43-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.3 ± 2.0

66-gra/zak

1,3-Dimethyl-4-hexylbenzene

[500035-23-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.0 ± 2.0

39-fra

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14 1,4-Dimethyl-2-hexylbenzene

[3042-53-3]

153

C14H22

MW = 190.33

210

C14H22

MW = 190.33

211

C14H22

MW = 190.33

212

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.135. Coefficient ρ = A + BT A 1085.77 B -0.750

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

303.15 293.15 303.15 313.15

ρexp ± 2σ est kg ⋅ m

−3

858.4 ± 1.0 865.7 ± 1.0 858.4 ± 1.0 851.1 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.01 -0.18 -0.01 0.20

49-les/sur 49-qua 49-qua 49-qua

Table 3. Recommended values. ρexp ± 2σ est

T K 290.00 293.15 298.15 310.00 320.00

kg ⋅ m−3

868.3 ± 0.7 865.9 ± 0.5 862.2 ± 0.3 853.3 ± 0.4 845.8 ± 0.9

[1,2-Dimethyl-1-(1-methylethyl)propyl]benzene

[500019-02-3]

Table 1. Experimental values with uncertainties. T K 293.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

880.8 ± 2.0 880.8 ± 1.0

44-hus 48-hus/goe

(2-Ethylhexyl)benzene

[5617-39-0]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

868.0 ± 2.0

Landolt-Börnstein New Series IV/8E

57-jac

154

2.4 Alkylbenzenes (CnH2n-6), C14

1-Ethyl-3-methyl-4-(3-methylbutyl)benzene

[500035-24-5]

C14H22

MW = 190.33

213

[500026-40-4]

C14H22

MW = 190.33

214

[500017-93-6]

C14H22

MW = 190.33

215

C14H22

MW = 190.33

216

C14H22

MW = 190.33

217

Table 1. Experimental value with uncertainty. T K 284.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.1 ± 2.0

24-mai

(1-Ethyl-1-methylpentyl)benzene

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.8 ± 2.0 872.9 ± 2.0 873.3 ± 2.0

44-hus 48-hus/goe Recommended

(1-Ethyl-1,2,2-trimethylpropyl)benzene

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.1 ± 2.0

53-hus/van

1-Heptyl-2-methylbenzene

[86316-74-7]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.7 ± 2.0

24-eis/sch

1-Heptyl-3-methylbenzene

[500035-22-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

861.5 ± 2.0

24-eis/sch

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14 1-Heptyl-4-methylbenzene

155

[15181-07-4]

C14H22

MW = 190.33

218

[13867-22-6]

C14H22

MW = 190.33

219

C14H22

MW = 190.33

220

C14H22

MW = 190.33

221

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.0 ± 2.0 858.6 ± 2.0 857.3 ± 2.0 857.3 ± 2.0

24-eis/sch 41-sch/sch-1 60-nik/vor Recommended

1-(1-Methylbutyl)-2,4,6trimethylbenzene

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.6 ± 1.0

66-yan/vdo

1-(2-Methylbutyl)-2,4,6trimethylbenzene

[500035-25-6]

Table 1. Experimental value with uncertainty. T K 296.45

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.1 ± 2.0

04-kla/sta

(1-Methylheptyl)benzene

[777-22-0]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.4879 (combined temperature ranges, weighted), σc,uw = 8.1093 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.07942 · 103 -7.52665 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

156

2.4 Alkylbenzenes (CnH2n-6), C14

(1-Methylheptyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

−3

kg ⋅ m

878.20 ± 5.00 859.30 ± 1.50 878.00 ± 5.00 859.00 ± 1.00 860.00 ± 2.00 861.50 ± 1.50 842.40 ± 4.00 854.00 ± 3.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

4.37 0.90 4.17 0.60 1.23 0.47 6.21 -4.77

30-til/kur(✕ ) 30-til/kur(✕ ) 37-til(✕ ) 37-til(✕ ) 38-til(∆) 39-pet/bai(∇) 39-pet/bai(∇) 40-tou/hen(◆)

T K

273.15 293.15 310.95 333.15 372.05 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

871.10 ± 1.00 857.10 ± 1.00 844.00 ± 1.00 827.70 ± 1.00 798.80 ± 1.00 857.70 ± 1.00 854.00 ± 3.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-2.73 -1.67 -1.38 -0.97 -0.59 -1.07 -4.77

{ { { { {

47-sch( ) 47-sch( ) 47-sch( ) 47-sch( ) 47-sch( ) 60-nik/vor( ) 86-pla/sha(✕ )

…

ρ

ρ

273.15 293.65 273.15 293.65 293.15 290.15 323.15 293.15

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14

157

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

876.20 ± 4.17 868.67 ± 2.72 861.14 ± 1.92 858.77 ± 1.77 855.01 ± 1.63

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

T K

853.62 ± 1.61 846.09 ± 1.65 838.56 ± 1.91 831.04 ± 2.23 823.51 ± 2.48

300.00 310.00 320.00 330.00 340.00

[1-Methyl-1-(1-methylethyl) butyl]benzene

[500016-48-8]

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 815.98 ± 2.50 808.46 ± 2.18 800.93 ± 1.44 793.40 ± 0.93

C14H22

MW = 190.33

222

C14H22

MW = 190.33

223

C14H22

MW = 190.33

224

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

876.3 ± 20.0 854.3 ± 2.0 854.3 ± 2.0

44-hus1) 48-hus/goe Recommended

Not included in calculation of recommended value.

1-Methyl-4-(1-methylethyl)-2(1-methylpropyl)benzene

[500034-38-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

861.4 ± 1.0

53-syk/her

1-Methyl-4-(1-methylethyl)-2(2-methylpropyl)benzene

[500034-37-7]

Table 1. Experimental values with uncertainties. T K

290.15 288.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

916.0 ± 2.0 920.2 ± 1.0

Landolt-Börnstein New Series IV/8E

1892-cla 49-mal/bar

158

2.4 Alkylbenzenes (CnH2n-6), C14

1-(1-Methylpropyl)-4(2-methylpropyl)benzene

[62449-90-5]

C14H22

MW = 190.33

225

[700002-24-0]

C14H22

MW = 190.33

226

C14H22

MW = 190.33

227

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

851.1 ± 2.0 853.4 ± 2.0 852.2 ± 2.2

43-hen/aus 43-hen/aus Recommended

1-Methyl-4-(1,1,3-trimethylbutyl) benzene

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.3 ± 1.0

57-pet/zak

Octylbenzene

[2189-60-8]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 7.2130 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.1472 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 372.04 K ρ = A + BT + CT 2 + DT 3 + … 1.01667 · 103 -3.81276 · 10-1 -5.49435 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 303.15 293.15 273.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

858.30 ± 1.50 858.20 ± 1.50 858.20 ± 1.00 851.20 ± 1.00 858.20 ± 1.00 871.20 ± 0.60 856.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.62 0.52 0.52 0.60 0.52 -0.33 -1.38

24-eis/sch(✕ ) 34-bar-2(✕ ) 39-sch/hop(∇) 39-sch/hop(∇) 42-sch(✕ ) 47-sch( ) 47-sch( )

{ {

T K

312.93 333.15 372.04 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

844.20 ± 0.60 827.50 ± 0.60 798.80 ± 0.60 858.20 ± 1.00 856.70 ± 0.60 857.60 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.64 -1.17 0.03 0.52 -0.98 -0.08

{ { {

47-sch( ) 47-sch( ) 47-sch( ) 49-lut(◆) 60-nik/vor( ) 64-sha/bek(∆)

…

Not included in Fig. 1.

cont.

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14

159

ρ

ρ

Further references: [30-til/kur, 39-dya/loz, 39-wat/lee, 44-pet/lap, 46-gar, 48-tsc].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 873.67 ± 1.13 866.84 ± 1.00 859.89 ± 0.92 857.68 ± 0.90 854.15 ± 0.89

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 852.84 ± 0.88 845.68 ± 0.86 838.40 ± 0.84 831.02 ± 0.82 823.52 ± 0.79

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 815.92 ± 0.76 808.21 ± 0.76 800.38 ± 0.80 792.45 ± 0.93

160

2.4 Alkylbenzenes (CnH2n-6), C14

(1-Propylpentyl)benzene

[18335-17-6]

C14H22

MW = 190.33

228

C14H22

MW = 190.33

229

C14H22

MW = 190.33

230

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.0 ± 2.0

31-lev/mar-7

(2-Propylpentyl)benzene

[108618-23-1]

Table 1. Experimental value with uncertainty. T K

287.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

854.0 ± 2.0

12-amo/mur

1,2,3,4-Tetraethylbenzene

[642-32-0]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.0972 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.3612 · 10-1 (combined temperature ranges, unweighted). T = 277.15 to 298.15 K ρ = A + BT + CT 2 + DT 3 + … 1.07401 · 103 -6.35427 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

277.15 283.15 288.15 292.75

ρexp ± 2σ est −3

kg ⋅ m

898.20 ± 1.00 894.03 ± 1.00 890.90 ± 1.00 886.62 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.30 -0.06 -0.01 -1.37

00-per(∆) 00-per(∆) 00-per(∆) 00-per(∆)

T K

293.15 298.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

887.78 ± 1.00 885.54 ± 1.00 888.10 ± 1.00 887.50 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 0.98 0.36 -0.24

00-per(∆) 00-per(∆) 34-bar-2( ) 40-smi/gus-1( )

{

…

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 902.45 ± 1.49 896.09 ± 1.13 889.74 ± 0.95

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 887.74 ± 0.95 884.56 ± 1.02 883.38 ± 1.06

T K

310.00

ρ ± σ fit kg ⋅ m−3 877.03 ± 1.40

cont.

Landolt-Börnstein New Series IV/8E

161

ρ

ρ

2.4 Alkylbenzenes (CnH2n-6), C14

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1,2,3,5-Tetraethylbenzene

[38842-05-6]

C14H22

MW = 190.33

231

C14H22

MW = 190.33

232

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

879.9 ± 0.4

40-smi/gus-1

1,2,4,5-Tetraethylbenzene

[635-81-4]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.726. Coefficient ρ = A + BT 1092.66 A -0.720 B cont.

Landolt-Börnstein New Series IV/8E

162

2.4 Alkylbenzenes (CnH2n-6), C14

1,2,4,5-Tetraethylbenzene (cont.)

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

289.15 298.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

884.0 ± 2.0 878.8 ± 1.0 877.3 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.47 0.81 -0.69

03-kla/kei 40-smi/gus-1 55-rab/fro

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

891.1 ± 1.9 883.9 ± 1.0 881.6 ± 0.8 878.0 ± 0.7

(1,1,2,2-tetramethylbutyl)-benzene

[500018-39-3]

C14H22

MW = 190.33

233

C14H22

MW = 190.33

234

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.9 ± 5.0 886.8 ± 2.0 886.8 ± 2.0

41-hus/gui1) 53-hus/van Recommended

Not included in calculation of recommended value.

(1,1,3,3-Tetramethylbutyl)benzene

[500018-04-2]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.3 ± 2.0 876.7 ± 2.0 876.7 ± 2.0 881.0 ± 2.0 878.7 ± 2.3

41-hus/gui 53-dre/har 53-pin/mye 59-san/kov Recommended

Landolt-Börnstein New Series IV/8E

2.4 Alkylbenzenes (CnH2n-6), C14 (1,1,2-Trimethylpentyl)benzene

[500016-22-8]

163

C14H22

MW = 190.33

235

C14H22

MW = 190.33

236

C14H22

MW = 190.33

237

C14H22

MW = 190.33

238

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.1 ± 1.0

41-hus/gui

(1,1,3-Trimethylpentyl)benzene

[700002-26-2]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.9 ± 1.0

41-hus/gui

(1,1,4-Trimethylpentyl)benzene

[22115-03-3]

Table 1. Experimental values with uncertainties. T K 291.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

884.4 ± 4.0 874.9 ± 2.0 865.1 ± 2.0

14-hal 41-hus/gui 66-nik/vor

(2,2,4-Trimethylpentyl)benzene

[500031-10-7]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.0 ± 1.0

Landolt-Börnstein New Series IV/8E

59-pet/zak

Empty page 164

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

165

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 1,3-bis(1,1-Dimethylethyl)5-methylbenzene

[15181-11-0]

C15H24

MW = 204.36

239

C15H24

MW = 204.36

240

C15H24

MW = 204.36

241

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.0 ± 2.0

54-mcc/lie

1,3-bis(1-Methylpropyl)4-methylbenzene

[500033-97-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

858.6 ± 2.0

59-rom/gri

(1-Butylpentyl)benzene

[20216-88-0]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.650. Coefficient ρ = A + BT A 1069.62 B -0.800 Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp − ρcalc Ref. ρexp ± 2σ est T kg ⋅ m−3 K kg ⋅ m−3 293.15 323.15

857.9 ± 1.0 837.6 ± 1.0

-0.65 0.65

Table 3. Recommended values. T K

290.00 293.15 298.15 310.00 320.00 330.00

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

860.8 ± 1.1 858.5 ± 1.0 854.9 ± 0.8 846.4 ± 0.7 839.2 ± 0.9 832.0 ± 1.3

39-pet/bai 39-pet/bai

166

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1-Butyl-2-pentylbenzene

[71521-86-3]

C15H24

MW = 204.36

242

C15H24

MW = 204.36

243

C15H24

MW = 204.36

244

C15H24

MW = 204.36

245

C15H24

MW = 204.36

246

C15H24

MW = 204.36

247

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.4 ± 1.0

57-els/str-1

1,3-Dibutyl-4-methylbenzene

[500033-98-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

852.9 ± 2.0

59-rom/gri

(1,1-Diethyl-3-methylbutyl)benzene

[500035-28-9]

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.5 ± 2.0

14-hal

1-(1,1-Dimethylbutyl)4-(1-methylethyl)benzene

[500036-25-9]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.5 ± 1.0

60-pet/nik

1-(1,1-Dimethylethyl)-3,5-dimethyl4-(1-methylethyl)benzene

[500034-46-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

882.7 ± 1.0

55-sch

1-(1,1-Dimethylethyl)-3-ethyl4-(1-methylethyl)benzene

[500034-45-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

868.9 ± 1.0

55-sch-1

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 1-(1,1-Dimethylethyl)-3-methyl4-(1-methylpropyl)benzene

[500035-11-0]

167

C15H24

MW = 204.36

248

C15H24

MW = 204.36

249

C15H24

MW = 204.36

250

C15H24

MW = 204.36

251

C15H24

MW = 204.36

252

C15H24

MW = 204.36

253

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.1 ± 1.0

55-sch-1

1-(1,1-Dimethylethyl)-3-methyl4-(2-methylpropyl)benzene

[500034-44-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

865.4 ± 1.0

55-sch-1

(1,4-Dimethyl-1-ethylpentyl)benzene

[500035-27-8]

Table 1. Experimental value with uncertainty. T K

289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.8 ± 2.0

14-hal

1,2-Dimethyl-4-heptylbenzene

[500024-06-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.1 ± 1.0

59-shi/pok

1,3-Dimethyl-4-heptylbenzene

[500024-07-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

868.9 ± 1.0

59-shi/pok

1,4-Dimethyl-2-heptylbenzene

[87119-27-5]

Table 1. Experimental value with uncertainty. T K 303.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

857.1 ± 0.5

Landolt-Börnstein New Series IV/8E

49-les/sur

168

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1,4-Dimethyl-4-heptylbenzene

[500024-75-9]

C15H24

MW = 204.36

254

C15H24

MW = 204.36

255

C15H24

MW = 204.36

256

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.485. Coefficient ρ = A + BT A 1084.53 B -0.740

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

303.15 293.15 303.15 313.15 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

857.1 ± 2.0 867.6 ± 1.0 860.5 ± 1.0 853.3 ± 1.0 866.8 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-3.10 0.04 0.28 0.47 -0.80

49-les/sur1) 49-qua 49-qua 49-qua 59-shi/pok

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00 320.00

ρexp ± 2σ est kg ⋅ m−3

869.9 ± 0.7 867.6 ± 0.6 863.9 ± 0.5 855.1 ± 0.7 847.7 ± 1.1

1-Methyl-4-(1,1-dimethylhexyl)benzene

[6683-52-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

871.5 ± 1.0

66-nik/vor

1-Methyl-4-(1,5-dimethylhexyl)benzene

[500035-29-0]

Table 1. Experimental value with uncertainty. T K

288.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

852.4 ± 2.0

29-ruz/van

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 1-(1,1-Dimethylpropyl)-2-methyl5-(1-methylethyl)benzene

[500036-34-0]

169

C14H22

MW = 190.33

257

C15H24

MW = 204.36

258

C15H24

MW = 204.36

259

C15H24

MW = 204.36

260

C15H24

MW = 204.36

261

C15H24

MW = 204.36

262

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.2 ± 1.0

55-web/spo

1-(1,1-Dimethylpropyl)-3-methyl6-(1-methylethyl)benzene

[500034-43-5]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

899.3 ± 1.0

51-car/eas

1,2-Dimethyl-4-(1,1,3-trimethylbutyl)benzene

[500034-47-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.2 ± 2.0

57-pet/zak

1,3-Dimethyl-4-(1,1,3-trimethylbutyl)benzene

[500034-48-0]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.7 ± 2.0

57-pet/zak

(2-Ethyl-2,4-dimethylpentyl)benzene

[500030-21-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.8 ± 1.0

59-pet/zak

(1-Ethyl-1-propylbutyl)benzene

[500035-26-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.8 ± 2.0

Landolt-Börnstein New Series IV/8E

14-hal

170

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1-(1-Methylethyl)-4-(3-methylpentyl)benzene

[500035-30-6]

C15H24

MW = 204.36

263

C15H24

MW = 204.36

264

C15H24

MW = 204.36

265

C15H24

MW = 204.36

266

Table 1. Experimental value with uncertainty. T K

288.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.2 ± 2.0

05-kla/sau

1-Methyl-2-(3-methylbutyl)4-(1-methylethyl)benzene

[57079-77-3]

Table 1. Experimental value with uncertainty. T K

288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.2 ± 2.0

49-mal/bar

1-Methyl-4-(1-methylheptyl)benzene

[500034-42-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.7 ± 2.0

41-wel/hen

(1-Methyloctyl)benzene

[51770-89-9]

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.438. Coefficient ρ = A + BT 1090.57 A -0.780 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

295.15 273.15 295.15 273.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

861.6 ± 2.0 877.4 ± 2.0 860.0 ± 1.0 877.4 ± 2.0 862.0 ± 1.0 858.6 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

1.25 -0.11 -0.35 -0.11 0.09 -3.31

30-til/kur 30-til/kur 37-til 37-til 38-til 60-nik/vor1)

Not included in calculation of linear coefficients.

cont.

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

171

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

880.0 ± 2.1 872.2 ± 1.1 864.4 ± 0.8 861.9 ± 0.7 858.0 ± 1.7

270.00 280.00 290.00 293.15 298.15

(2-Methyloctyl)benzene

[49826-80-4]

C15H24

MW = 204.36

267

Table 1. Experimental and recommended values with uncertainties. T K

298.15 298.15 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

855.2 ± 2.0 853.4 ± 2.0 854.3 ± 2.1

48-let 48-let Recommended

1-Methyl-4-octylbenzene

[7686-25-1]

C15H24

MW = 204.36

268

C15H24

MW = 204.36

269

Table 1. Experimental and recommended values with uncertainties. T K 293.15 273.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

895.1 ± 30.0 905.6 ± 30.0 857.4 ± 1.0 857.4 ± 1.0 857.4 ± 1.0

1895-jou1) 1895-jou1) 39-she/woo 41-sch/sch-1 Recommended

Not included in calculation of recommended value.

1-Methyl-4-(1,1,3,3tetramethylbutyl)benzene

[2055-77-8]

Table 1.. Experimental and recommended values with uncertainties T K 293.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.6 ± 2.0 893.4 ± 15.0 873.6 ± 2.0 873.6 ± 2.0 873.6 ± 2.0

53-san/kov 57-pet/zak1) 59-san/kov 61-sok/she-1 Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

172 Nonylbenzene

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 [1081-77-2]

C15H24

MW = 204.36

270

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.6573 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.2930 · 10-1 (combined temperature ranges, unweighted). T = 282.35 to 367.95 K ρ = A + BT + CT 2 + DT 3 + … 1.06896 · 103 -7.17925 · 10-1

ρ

ρ

Coefficient A B

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

173

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.71 282.35 298.15 302.85 322.95 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

−3

kg ⋅ m

862.60 ± 1.00 865.90 ± 1.00 854.70 ± 1.00 851.30 ± 1.00 837.10 ± 1.00

0.91 -0.35 -0.21 -0.23 -0.00

39-she/woo(∇) 40-ju /she( ) 40-ju /she( ) 40-ju /she( ) 40-ju /she( )

… … … …

Not included in Fig. 1.

T K

342.85 367.95 288.71 293.55

ρexp ± 2σ est −3

kg ⋅ m

822.60 ± 1.00 805.00 ± 1.00 861.80 ± 1.00 858.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.22 0.20 0.11 -0.21

… … {

40-ju /she( ) 40-ju /she( ) 41-ju /woo( ) 46-gar(∆)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

867.94 ± 1.06 860.76 ± 1.03 858.50 ± 1.02 854.91 ± 1.01 853.58 ± 1.01

280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

T K

846.40 ± 1.00 839.22 ± 1.01 832.04 ± 1.03 824.86 ± 1.07 817.68 ± 1.11

310.00 320.00 330.00 340.00 350.00

(1,2,2,4-Tetramethylpentyl)benzene

[500034-41-3]

T K

360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 810.51 ± 1.17 803.33 ± 1.24 796.15 ± 1.32

C15H24

MW = 204.36

271

C15H24

MW = 204.36

272

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

897.0 ± 2.0

57-pet/zak

1,2,4-Tris(1-methylethyl)benzene

[948-32-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.3315 (combined temperature ranges, weighted), σc,uw = 4.6738 · 10-1 (combined temperature ranges, unweighted). Coefficient A B

T = 289.15 to 303.15 K ρ = A + BT + CT 2 + DT 3 + … 1.06253 · 103 -6.85739 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

174

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1,2,4-Tris(1-methylethyl)benzene (cont.)

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 289.15 298.15 293.15

−3

kg ⋅ m

856.80 ± 1.00 863.00 ± 2.00 857.00 ± 1.00 862.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-1.28 -1.25 -1.08 0.49

27-ber/rei(∇) 34-kir/gra(✕ ) 35-sla/sow( ) 36-ipa/cor(∆)

{

T K

293.15 303.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

863.40 ± 2.00 855.60 ± 1.00 861.80 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

1.89 0.95 0.29

43-new(◆) 43-new(◆) 59-vol/zav( )

…

Not included in Fig. 1.

ρ

ρ

1)

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

175

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

870.53 ± 4.70 863.67 ± 1.90

280.00 290.00

ρ ± σ fit kg ⋅ m−3

T K

861.51 ± 1.38 858.08 ± 1.01

293.15 298.15

1,3,5-Tris(1-methylethyl)benzene

[717-74-8]

T K

300.00 310.00

ρ ± σ fit kg ⋅ m−3 856.81 ± 1.05 849.96 ± 2.32

C15H24

MW = 204.36

273

C16H26

MW = 218.38

274

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.187. Coefficient ρ = A + BT A 1089.22 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 303.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

854.7 ± 1.0 846.6 ± 1.0 854.5 ± 1.0 855.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.00 -0.10 -0.20 0.30

43-new 43-new 54-mcc/lie 59-vol/zav

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

857.2 ± 1.2 854.7 ± 0.8 850.7 ± 0.7 841.2 ± 1.3

290.00 293.15 298.15 310.00

1,3-Bis(1,1-dimethylethyl)5-ethylbenzene

[500034-54-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

857.5 ± 1.0

Landolt-Börnstein New Series IV/8E

53-sch-1

176

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1,4-bis(1,1-Dimethylpropyl)benzene

[3373-10-2]

C16H26

MW = 218.38

275

C16H26

MW = 218.38

276

Table 1. Experimental and recommended values with uncertainties. T K 298.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

846.6 ± 10.0 875.2 ± 0.4 875.2 ± 0.4

38-oco/sow1) 62-ano-3 Recommended

Not included in calculation of recommended value.

1,4-bis(1-Methylbutyl)benzene

[1020-14-0]

Table 1. Experimental and recommended values with uncertainties. T K 298.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

849.6 ± 10.0 863.0 ± 1.0 861.9 ± 1.0 862.5 ± 1.1

38-oco/sow1) 40-tou/hen 41-wel/hen Recommended

Not included in calculation of recommended value.

(1-Butylhexyl)benzene

[4537-11-5]

C16H26

MW = 218.38

277

C16H26

MW = 218.38

278

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.3 ± 1.0

50-zie/eim

1-Butyl-2-hexylbenzene

[71521-89-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

861.8 ± 1.0

57-els/str

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 Decylbenzene

[104-72-3]

177

C16H26

MW = 218.38

279

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.7336 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.6261 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.06033 · 103 -6.98863 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 273.15 293.15 310.95 333.15 372.05 1)

ρexp ± 2σ est kg ⋅ m

−3

856.00 ± 0.50 856.00 ± 0.50 855.40 ± 0.50 869.30 ± 0.50 855.40 ± 0.50 843.00 ± 0.50 827.50 ± 0.50 800.10 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.54 0.54 -0.06 -0.14 -0.06 -0.02 -0.00 -0.22

48-ano-3(✕ ) 49-boo/gre(∇) 50-boo/gre( ) 52-ano-5(∆) 52-ano-5(∆) 52-ano-5(∆) 52-ano-5(∆) 52-ano-5(∆)

{

T K

293.15 298.15 303.15 273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est kg ⋅ m

−3

855.53 ± 0.06 851.89 ± 0.06 848.33 ± 0.06 869.30 ± 0.50 855.40 ± 0.50 843.00 ± 0.50 827.50 ± 0.50 800.10 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.07 -0.07 -0.14 -0.14 -0.06 -0.02 -0.00 -0.22

… … …

54-cam/for( ) 54-cam/for( ) 54-cam/for( ) 68-ano-1(◆) 68-ano-1(◆) 68-ano-1(◆) 68-ano-1(◆) 68-ano-1(◆)

Not included in Fig. 1.

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 871.64 ± 0.58 864.65 ± 0.44 857.66 ± 0.37 855.46 ± 0.36 851.96 ± 0.35

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 850.67 ± 0.36 843.68 ± 0.38 836.69 ± 0.43 829.71 ± 0.49 822.72 ± 0.54

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 815.73 ± 0.58 808.74 ± 0.58 801.75 ± 0.54 794.76 ± 0.44

cont.

Landolt-Börnstein New Series IV/8E

178

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

ρ

ρ

Decylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

[1,3-Dimethyl-1-(2-methylpropyl)-butyl]- [500035-32-8] benzene

C16H26

MW = 218.38

C16H26

MW = 218.38

280

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

875.3 ± 2.0

14-hal

(3,7-Dimethyloctyl)benzene

[21425-82-1]

281

Table 1. Experimental value with uncertainty. T K 283.65

ρexp ± 2σ est

Ref.

kg ⋅ m−3

878.9 ± 2.0

06-kla/sau

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 1,2-Dimethyl-4-octylbenzene

[15880-22-5]

179

C16H26

MW = 218.38

282

C16H26

MW = 218.38

283

C16H26

MW = 218.38

284

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.2 ± 1.0

66-mek/lyu

1,4-Dimethyl-2-octylbenzene

[500005-14-1]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.108. Coefficient ρ = A + BT 1076.20 A -0.720 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

303.15 293.15 303.15 313.15

ρexp ± 2σ est −3

kg ⋅ m

857.9 ± 0.5 865.0 ± 0.6 857.9 ± 0.6 850.9 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-0.03 -0.12 -0.01 0.19

49-les/sur 49-qua 49-qua 49-qua

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

867.4 ± 0.7 865.1 ± 0.5 861.5 ± 0.3 853.0 ± 0.4 845.8 ± 0.8

290.00 293.15 298.15 310.00 320.00

(2,4-Dimethyl-2-propylpentyl)benzene

[500030-47-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.1 ± 1.0

Landolt-Börnstein New Series IV/8E

59-pet/zak

180

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

1,2-Dimethyl-4(1,1,3,3-tetramethylbutyl)benzene

[13384-13-9]

C16H26

MW = 218.38

285

C16H26

MW = 218.38

286

C16H26

MW = 218.38

287

C16H26

MW = 218.38

288

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

879.8 ± 1.0

59-san/kov

1,3-Dipentylbenzene

[1752-08-5]

Table 1. Experimental value with uncertainty. T K 273.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.8 ± 2.0

1879-aus

1,4-Dipentylbenzene

[6796-33-4]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 1.120. Coefficient ρ = A + BT 1120.58 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 293.15

ρexp ± 2σ est kg ⋅ m−3

850.0 ± 2.0 857.3 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-2.24 0.56

54-cra/dae 60-pet/nik

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

859.6 ± 1.2 856.7 ± 1.1 852.2 ± 1.2

1-Ethyl-4-(1-methylheptyl)benzene

[500034-53-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

860.9 ± 2.0

41-wel/hen

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 (1-Ethyl-1-propylpentyl)benzene

[500035-31-7]

181

C16H26

MW = 218.38

289

C16H26

MW = 218.38

290

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.4 ± 2.0

14-hal

(1-Methylnonyl)benzene

[4537-13-7]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2368 (combined temperature ranges, weighted), σc,uw = 6.0913 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 298.15 K ρ = A + BT + CT 2 + DT 3 + … 1.11956 · 103 -8.82553 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 295.15 273.15 292.15 1)

ρexp ± 2σ est −3

kg ⋅ m

877.60 ± 2.00 862.30 ± 3.00 877.00 ± 2.00 862.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.89 3.22 -1.49 0.28

30-til/kur(◆) 30-til/kur(◆) 37-til(∇) 37-til(∇)

T K

293.15 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

861.00 ± 1.00 855.00 ± 1.00 861.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.16 -1.43 0.16

{

38-til( ) 49-eme/luc(∆) 86-pla/sha( )

…

Not included in Fig. 1.

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 881.27 ± 2.00 872.45 ± 1.50 863.62 ± 1.00

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 860.84 ± 1.49 856.43 ± 1.23 854.80 ± 0.70

T K

310.00

ρ ± σ fit kg ⋅ m−3 845.97 ± 1.30

cont.

Landolt-Börnstein New Series IV/8E

182

2.5 Alkylbenzenes (CnH2n-6), C15 - C16

ρ

ρ

(1-Methylnonyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1-Methyl-2,4,6-tris(1-methylethyl)benzene

[500035-33-9]

C16H26

MW = 218.38

291

C16H26

MW = 218.38

292

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

869.5 ± 2.0

35-des-2

Pentaethylbenzene

[605-01-6]

Table 1. Experimental values with uncertainties. T K

381.05 293.45 292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

833.6 ± 3.0 896.3 ± 1.0 897.1 ± 1.0

1893-eyk 1893-eyk 14-hal

Landolt-Börnstein New Series IV/8E

2.5 Alkylbenzenes (CnH2n-6), C15 - C16 (1,3,5,5-Tetramethylhexyl)benzene

183

[500006-27-9]

C16H26

MW = 218.38

293

[500034-52-6]

C16H26

MW = 218.38

294

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.9 ± 0.5 855.9 ± 0.5 855.9 ± 0.5

50-bry/tur 53-tre Recommended

(4,6,6-Trimethylheptyl)benzene

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.9 ± 1.0

Landolt-Börnstein New Series IV/8E

50-bry/tur

Empty page 184

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

185

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1,3-bis(1-Methylbutyl)-4-methylbenzene [30675-96-8]

C17H28

MW = 232.41

295

C17H28

MW = 232.41

296

C17H28

MW = 232.41

297

C17H28

MW = 232.41

298

C17H28

MW = 232.41

299

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

865.1 ± 1.0

65-zav/kog

1,3-bis(3-Methylbutyl)-4-methylbenzene [500033-99-8] Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

862.0 ± 2.0

59-rom/gri

1,3-bis(1-Methylpropyl)-2,4,6trimethylbenzene

[92102-13-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.8 ± 1.0

63-iof/yan

(3-Butylheptyl)benzene

[101746-51-4]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.9 ± 1.0

58-pet/nik

1-Decyl-4-methylbenzene Table 1. Experimental and recommended values with uncertainties. ρexp ± 2σ est T Ref. −3 K kg ⋅ m 293.15 854.9 ± 2.0 41-sch/sch-1 293.15 858.3 ± 2.0 60-nik/vor 293.15 856.6 ± 2.3 Recommended

Landolt-Börnstein New Series IV/8E

[500025-28-5]

186

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1-(1,1-Dimethylhexyl)4-(1-methylethyl)benzene

[500036-26-0]

C17H28

MW = 232.41

300

C17H28

MW = 232.41

301

C17H28

MW = 232.41

302

C17H28

MW = 232.41

303

C17H28

MW = 232.41

304

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

862.6 ± 1.0

60-pet/nik

(1,1-Dimethylnonyl)benzene

[55191-25-8]

Table 1. Experimental values with uncertainties. T K 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.6 ± 2.0 867.6 ± 2.0 862.8 ± 2.0

40-zie/gri 58-pet/nik 60-nik/vor

(1,1-Dipropyl-3-methylbutyl)benzene

[500035-35-1]

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.0 ± 2.0

14-hal

(3-Ethyl-1,1-dimethylheptyl)benzene

[500035-34-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

862.0 ± 2.0

(1-Methyldecyl)benzene

40-zie/gri

[4536-88-3]

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.377. Coefficient ρ = A + BT 1094.18 A -0.800 B

cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

187

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

296.65 273.15 296.65 273.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

857.2 ± 1.0 875.5 ± 1.0 857.0 ± 1.0 875.0 ± 1.0 860.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.34 -0.16 0.14 -0.66 0.34

30-til/kur 30-til/kur 37-til 37-til 38-til

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

878.2 ± 1.7 870.2 ± 0.8 862.2 ± 0.5 859.7 ± 0.8 855.7 ± 1.2

270.00 280.00 290.00 293.15 298.15

[2-Methyl-2-(2-methylpropyl)hexyl]benzene

[500028-41-1]

C17H28

MW = 232.41

305

C18H30

MW = 246.44

306

C18H30

MW = 246.44

307

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.3 ± 1.0

59-pet/zak

1,4-bis(1-Ethylbutyl)benzene

[500036-28-2]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

912.5 ± 2.0

39-spi/tin

1,3-bis(1-Methylbutyl)-4-ethylbenzene

[25168-28-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

866.8 ± 1.0

Landolt-Börnstein New Series IV/8E

69-ovc/zav

188

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Butyloctyl)benzene

[2719-63-3]

C18H30

MW = 246.44

308

C18H30

MW = 246.44

309

C18H30

MW = 246.44

310

C18H30

MW = 246.44

311

Table 1. Experimental values with uncertainties. T K 313.15 303.15 293.15 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

840.6 ± 2.0 848.5 ± 2.0 861.0 ± 2.0 846.7 ± 2.0

42-sch/gro 42-sch/gro 43-gil/mea 55-gra/ger

1-Decyl-2,6-dimethylbenzene

[500034-59-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

867.9 ± 1.0

54-sch-1

1,4-Dihexylbenzene

[22588-73-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.7 ± 1.0

60-pet/nik

1,4-Dimethyl-2-(3,7-dimethyloctyl)benzene

[500034-55-9]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 6.0226 · 10-2 (combined temperature ranges, weighted), σc,uw = 1.3867 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05983 · 103 -6.83661 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.95

ρexp ± 2σ est −3

kg ⋅ m

873.10 ± 1.00 859.40 ± 1.00 847.30 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.01 -0.02 0.05

… … …

68-ano-1( ) 68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

832.00 ± 1.00 805.50 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.07 0.02

… …

68-ano-1( ) 68-ano-1( )

Further references: [67-ano-1]. cont.

Landolt-Börnstein New Series IV/8E

189

ρ

ρ

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 875.24 ± 1.03 868.41 ± 1.02 861.57 ± 1.01 859.42 ± 1.01 856.00 ± 1.00

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 854.73 ± 1.00 847.90 ± 1.00 841.06 ± 1.00 834.22 ± 1.00 827.39 ± 1.01

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 820.55 ± 1.01 813.71 ± 1.02 806.88 ± 1.03 800.04 ± 1.05

190

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1-(1,1-Dimethylethyl)-4 -(1,1,3,3-tetramethylbutyl)benzene

[500034-60-6]

C18H30

MW = 246.44

312

C18H30

MW = 246.44

313

C18H30

MW = 246.44

314

MW = 246.44

315

MW = 246.44

316

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

865.3 ± 1.0

59-san/kov

[1,4-Dimethyl-1-(3-methylbutyl)pentyl]benzene

[500035-37-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

872.8 ± 2.0

14-hal

1-(1,1-Dimethylnonyl)-4-methylbenzene

[500036-27-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

865.6 ± 1.0

60-pet/nik

1-(2,2-Dimethylpropyl)-4(1,3,3-trimethylbutyl)benzene

[500035-10-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

847.0 ± 2.0

Dodecylbenzene

53-blo/wes

[123-01-3]

C18H30

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.4133 · 10-1 (combined temperature ranges, weighted), σc,uw = 7.8306 · 10-2 (combined temperature ranges, unweighted). Coefficient A B

T = 283.65 to 373.15 K ρ = A + BT + CT 2 + DT 3 + … 1.05996 · 103 -6.93643 · 10-1 cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

191

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 303.15 283.65 294.25 303.05 313.75 322.95 332.15 342.15 362.95 373.15 1)

ρexp ± 2σ est −3

kg ⋅ m

856.40 ± 1.00 850.20 ± 1.00 863.60 ± 1.00 856.20 ± 1.00 849.60 ± 1.00 841.90 ± 1.00 835.60 ± 1.00 829.50 ± 1.00 822.50 ± 1.00 808.40 ± 1.00 801.30 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.22 0.52 0.39 0.34 -0.15 -0.43 -0.35 -0.07 -0.13 0.20 0.17

…) …) {) {) {) {) {) {) {) {) {)

39-sch/hop( 39-sch/hop( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she( 40-ju /she(

T K

288.71 293.15 293.15 303.15 297.15 297.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

859.90 ± 1.00 856.40 ± 1.00 856.40 ± 1.00 850.20 ± 1.00 852.00 ± 2.00 853.00 ± 1.00 856.40 ± 1.00 857.00 ± 1.00 856.70 ± 1.00 856.70 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.20 -0.22 -0.22 0.52 -1.85 -0.85 -0.22 0.38 0.08 0.08

41-ju /woo(∆) 42-sch(∇) 42-sch(∇) 42-sch(∇) 43-gil/mea1) 43-gil/mea(◆) 49-lut(✕ ) 60-nik/vor(✕ ) 64-sha/bek(✕ ) 66-sha/bek(✕ )

Not included in Fig. 1.

ρ

ρ

Further references: [38-pet/lap].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

192

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Dodecylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

865.74 ± 1.03 858.81 ± 1.01 856.62 ± 1.01 853.15 ± 1.00 851.87 ± 1.00

844.93 ± 1.00 838.00 ± 1.01 831.06 ± 1.02 824.12 ± 1.04 817.19 ± 1.07

310.00 320.00 330.00 340.00 350.00

(1-Ethyldecyl)benzene

[2400-00-2]

T K

360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 810.25 ± 1.10 803.31 ± 1.14 796.38 ± 1.19

C18H30

MW = 246.44

317

C18H30

MW = 246.44

318

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.200. Coefficient ρ = A + BT A 1107.11 B -0.860 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

313.15 303.15 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

837.60 ± 1.0 846.60 ± 1.0 859.00 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.20 0.20 4.00

42-sch/gro 42-sch/gro 43-gil/mea1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 293.15 298.15 310.00 320.00

ρexp ± 2σ est kg ⋅ m−3

855.0 ± 2.0 850.7 ± 2.0 840.5 ± 1.9 831.9 ± 2.0

Hexaethylbenzene

[604-88-6]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw =1.152. Coefficient ρ = A + BT A 1152.43 B -0.800 cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

193

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

403.55 403.55 423.15 408.15

ρexp ± 2σ est −3

kg ⋅ m

830.5 ± 2.0 830.5 ± 2.0 814.0 ± 2.0 824.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.91 0.91 0.09 -1.91

1893-eyk 33-hen/jef 38-koc/ste 38-koc/ste

Table 3. Recommended values. ρexp ± 2σ est

T K 400.00 410.00 420.00 430.00

kg ⋅ m−3

832.4 ± 1.5 824.4 ± 1.2 816.4 ± 1.6 808.4 ± 2.3

(2-Hexyl-4-methylpentyl)benzene

[500023-79-0]

C18H30

MW = 246.44

319

C18H30

MW = 246.44

320

C18H30

MW = 246.44

321

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

865.7 ± 1.0

58-pet/nik

[2-Methyl-2-(2-methylpropyl)-heptyl]benzene

[500028-11-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

872.7 ± 1.0

59-pet/zak

(1-Methylundecyl)benzene

[2719-61-1]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.340. Coefficient ρ = A + BT 1090.85 A -0.800 B

cont.

Landolt-Börnstein New Series IV/8E

194

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Methylundecyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

313.15 303.15 293.15 293.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

840.2 ± 1.0 848.8 ± 1.0 852.0 ± 3.0 856.0 ± 1.0

-0.13 0.47 -4.33 -0.33

42-sch/gro 42-sch/gro 43-gil/mea1) 86-pla/sha

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15 310.00 320.00

ρexp ± 2σ est kg ⋅ m−3

858.9 ± 1.4 856.3 ± 1.1 852.3 ± 0.6 842.9 ± 0.8 834.9 ± 1.7

(3-Methylundecyl)benzene

[500035-36-2]

C18H30

MW = 246.44

322

C18H30

MW = 246.44

323

C18H30

MW = 246.44

324

Table 1. Experimental value with uncertainty. T K 296.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

859.0 ± 2.0

35-lev/har-1

(1-Pentylheptyl)benzene

[2719-62-2]

Table 1. Experimental values with uncertainties. T K

313.15 303.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

839.2 ± 1.0 847.7 ± 1.0 858.0 ± 2.0

(1-Propylnonyl)benzene

42-sch/gro 42-sch/gro 43-gil/mea

[2719-64-4]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.437. Coefficient ρ = A + BT 1122.21 A -0.900 B cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

195

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

313.15 303.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

840.7 ± 1.0 848.9 ± 1.0 859.0 ± 2.0 842.0 ± 10.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.32 -0.48 0.62 -16.38

42-sch/gro 42-sch/gro 43-gil/mea 44-pet/lap1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K 290.00 293.15 298.15 310.00 320.00

kg ⋅ m−3

861.2 ± 1.7 858.4 ± 1.4 853.9 ± 0.9 843.2 ± 0.6 834.2 ± 1.4

1,2,4,5-Tetrakis(1-methylethyl)benzene

[635-11-0]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.150. Coefficient ρ = A + BT 1104.83 A -0.820 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

423.15 408.15

ρexp ± 2σ est kg ⋅ m−3

758.0 ± 2.0 770.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.15 -0.15

Table 3. Recommended values. T K 400.00 410.00 420.00 430.00

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

776.8 ± 2.3 768.6 ± 1.8 760.4 ± 1.8 752.2 ± 2.3

38-koc/ste 38-koc/ste

C18H30

MW = 246.44

325

196

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1,3,5-Tributylbenzene

[841-07-6]

C18H30

MW = 246.44

326

C18H30

MW = 246.44

327

C18H30

MW = 246.44

328

C18H30

MW = 246.44

329

Table 1. Experimental values with uncertainties. T K 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

853.9 ± 2.0 860.9 ± 3.0

54-mcc/lie 64-mak/rei

(1,1,3-Trimethylnonyl)benzene

[500021-55-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.7 ± 1.0

58-pet/nik

(1,4,8-Trimethylnonyl)benzene

[500022-78-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.3 ± 1.0

58-pet/nik

1,3,5-Tris(1-methylpropyl)benzene

[6565-55-5]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.160. Coefficient ρ = A + BT 1111.41 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15

ρexp ± 2σ est −3

kg ⋅ m

847.9 ± 2.0 843.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.32 -0.08

54-mcc/lie 67-she-2

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

850.4 ± 1.5 847.6 ± 1.5 843.1 ± 1.5

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1,3-bis(1-Methylbutyl)-4-propylbenzene

[25168-29-0]

197

C19H32

MW = 260.46

330

C19H32

MW = 260.46

331

C19H32

MW = 260.46

332

C19H32

MW = 260.46

333

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

870.8 ± 1.0

69-ovc/zav

1-Dodecyl-4-methylbenzene

[104-41-6]

Table 1. Experimental values with uncertainties. T K

293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.0 ± 1.0 856.0 ± 1.0

41-sch/sch 41-sch/sch-1

[1-Ethyl-4-methyl-1-(3-methylbutyl) pentyl]benzene

[500035-39-5]

Table 1. Experimental value with uncertainty. T K

291.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.5 ± 2.0

14-hal

(1-Hexylheptyl)benzene

[2400-01-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2224 · 10-1 (combined temperature ranges, weighted), σc,uw = 4.9022 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05746 · 103 -6.94366 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 273.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

854.10 ± 0.40 867.70 ± 0.50 853.90 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.19 -0.09 -0.01

… { {

49-foe/fen( ) 68-ano-1( ) 68-ano-1( )

T K

310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

841.50 ± 0.50 826.00 ± 0.50 799.20 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.05 -0.13 0.08

{ { {

68-ano-1( ) 68-ano-1( ) 68-ano-1( ) cont.

Landolt-Börnstein New Series IV/8E

198

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Hexylheptyl)benzene (cont.)

ρ

ρ

Further references: [39-pet/bai].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 869.98 ± 0.54 863.04 ± 0.51 856.09 ± 0.50 853.91 ± 0.49 850.43 ± 0.49

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 849.15 ± 0.49 842.21 ± 0.48 835.26 ± 0.49 828.32 ± 0.50 821.37 ± 0.52

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 814.43 ± 0.55 807.49 ± 0.58 800.54 ± 0.61 793.60 ± 0.66

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 [2-Methyl-2-(2-methylpropyl)-octyl]benzene

[500029-99-2]

199

C19H32

MW = 260.46

334

C19H32

MW = 260.46

335

C20H34

MW = 274.49

336

C20H34

MW = 274.49

337

C20H34

MW = 274.49

338

C20H34

MW = 274.49

339

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

875.6 ± 1.0

59-pet/zak

1-Methyl-4-(1-methylundecyl)benzene

[90734-24-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

859.4 ± 1.0

41-wel/hen

1-Butyl-2,4-bis(1-methylbutyl)benzene

[25168-30-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.2 ± 1.0

69-ovc/zav

1,4-Diheptylbenzene

[40775-32-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.3 ± 1.0

60-pet/nik

1,2-Dimethyl-4-dodecylbenzene

[15880-23-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.2 ± 1.0

66-mek/lyu

1-Ethyl-4-(1-methylundecyl)benzene

[115416-73-4]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

858.6 ± 1.0

Landolt-Börnstein New Series IV/8E

41-wel/hen

200

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

[5-Methyl-1-(1-methylethyl)1-propylheptyl]benzene

[500035-40-5]

C20H34

MW = 274.49

340

C20H34

MW = 274.49

341

C20H34

MW = 274.49

342

C20H34

MW = 274.49

343

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.7 ± 2.0

14-hal

[2-Methyl-2-(2-methylpropyl)-nonyl]benzene

[500030-10-2]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.7 ± 1.0

59-pet/zak

(1-Methyltridecyl)benzene

[4534-59-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.5 ± 1.0

42-pet/che

Tetradecylbenzene

[1459-10-5]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.3053 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.5435 · 10-1 (combined temperature ranges, unweighted). T = 283.85 to 375.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05552 · 103 -6.78319 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 303.15 283.85

ρexp ± 2σ est −3

kg ⋅ m

855.90 ± 0.60 849.60 ± 0.60 862.90 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.77 -0.29 -0.08

{ { …

39-sch/hop( ) 39-sch/hop( ) 40-ju /she( )

T K

293.15 302.65 312.65

ρexp ± 2σ est −3

kg ⋅ m

856.70 ± 0.60 850.00 ± 0.60 842.70 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.03 -0.23 -0.74

… … …

40-ju /she( ) 40-ju /she( ) 40-ju /she( ) cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

201

Table 2. (cont.) T K

−3

kg ⋅ m

835.90 ± 0.60 830.00 ± 0.60 822.30 ± 0.60 814.20 ± 0.60 807.80 ± 0.60 801.20 ± 0.60 859.70 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.49 0.26 -0.46 -0.14 -0.10 0.08 0.02

… … … … … …

40-ju /she( ) 40-ju /she( ) 40-ju /she( ) 40-ju /she( ) 40-ju /she( ) 40-ju /she( ) 41-ju /woo(∆)

T K

288.65 293.15 293.15 296.75 297.05 293.15

ρexp ± 2σ est −3

kg ⋅ m

860.50 ± 1.00 857.30 ± 1.00 855.90 ± 1.00 855.00 ± 2.00 856.00 ± 2.00 856.20 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.78 0.63 -0.77 0.77 1.97 -0.47

42-ju /woo(✕ ) 42-ju /woo(✕ ) 42-sch(◆) 43-gil/mea(✕ ) 43-gil/mea(✕ ) 49-lut(∇)

ρ

ρ

323.05 332.85 343.15 355.55 365.05 375.05 288.71

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

202

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Tetradecylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

865.59 ± 0.98 858.81 ± 0.92 856.67 ± 0.91 853.28 ± 0.88 852.02 ± 0.87

845.24 ± 0.82 838.46 ± 0.78 831.67 ± 0.73 824.89 ± 0.70 818.11 ± 0.66

310.00 320.00 330.00 340.00 350.00

[4-Methyl-1-(3-methylbutyl)-1(2-methylpropyl)pentyl]benzene

[500035-41-6]

ρ ± σ fit kg ⋅ m−3

T K

360.00 370.00 380.00 390.00

C21H36

811.33 ± 0.64 804.54 ± 0.62 797.76 ± 0.61 790.98 ± 0.60

MW = 288.52

344

C21H36

MW = 288.52

345

C22H38

MW = 302.54

346

C22H38

MW = 302.54

347

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

898.2 ± 2.0

14-hal

1-Methyl-4-tetradecylbenzene

[148278-31-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

856.0 ± 1.0

41-sch/sch-1

[1,1-bis(2-Methylpropyl)octyl]benzene

[500036-22-6]

Table 1. Experimental value with uncertainty. T K 292.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

870.8 ± 2.0

41-pet/lap

1,4-bis(1,1,3,3-Tetramethylbutyl)benzene

[102943-96-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

883.1 ± 1.0

59-san/kov

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1-Decyl-2,6-dimethyl-4(1,1-dimethylethyl)benzene

[500035-62-1]

203

C22H38

MW = 302.54

348

C22H38

MW = 302.54

349

C22H38

MW = 302.54

350

C22H38

MW = 302.54

351

C22H38

MW = 302.54

352

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.5 ± 1.0

54-sch-1

(1,1-Dimethyltetradecyl)benzene

[29138-94-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

861.1 ± 2.0

42-pet/che

1,4-Dioctylbenzene

[10541-38-5]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.6 ± 1.0

60-pet/nik

1-Dodecyl-2-methyl-5-(1-methylethyl)benzene

[500035-61-0]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

859.5 ± 1.0

Hexadecylbenzene

40-tur

[1459-09-2]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2555 (combined temperature ranges, weighted), σc,uw = 6.4385 · 10-1 (combined temperature ranges, unweighted). Coefficient A B C

T = 293.15 to 323.15 K ρ = A + BT + CT 2 + DT 3 + … 2.12493 · 102 4.81279 -8.92214 · 10-3 cont.

Landolt-Börnstein New Series IV/8E

204

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Hexadecylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

300.15 293.15 303.15 293.15 318.15 323.15 293.15 1)

856.70 ± 5.00 855.80 ± 0.40 849.30 ± 0.40 855.00 ± 0.60 838.80 ± 0.60 835.30 ± 0.60 861.50 ± 5.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

3.44 -0.82 -2.25 -1.62 -1.79 -0.74 4.88

1888-kra/got(✕ ) 39-sch/hop(∆) 39-sch/hop(∆) 42-lar/tho(∇) 42-lar/tho(∇) 42-lar/tho(∇) 42-pet/che1)

T K

300.15 293.15 298.55 300.45 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

856.70 ± 5.00 855.80 ± 0.40 855.00 ± 3.00 856.00 ± 3.00 854.80 ± 1.00 855.80 ± 0.40

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

3.44 -0.82 0.90 2.91 -1.82 -0.82

42-pet/che(✕ ) 42-sch( ) 43-gil/mea(✕ ) 43-gil/mea(✕ ) 43-wib/ove(◆) 49-lut( )

{

…

Not included in Fig. 1.

ρ

ρ

Further references: [38-til, 41-ney/pil].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

205

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

857.85 ± 2.0 856.62 ± 1.5 854.31 ± 3.0

290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

T K

853.34 ± 3.3 847.04 ± 2.0 838.96 ± 2.0

300.00 310.00 320.00

(4-Hexyldecyl)benzene

[500036-21-5]

T K

330.00

ρ ± σ fit kg ⋅ m−3 829.09 ± 5.0

C22H38

MW = 302.54

353

C22H38

MW = 302.54

354

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

874.5 ± 2.0

49-pet/kap

(1-Methylpentadecyl)benzene

[13419-16-4]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.216. Coefficient ρ = A + BT A 1098.82 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.65 273.15 293.15

ρexp ± 2σ est kg ⋅ m−3

864.0 ± 1.0 880.5 ± 1.0 864.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.10 0.20 -0.30

Table 3. Recommended values. T K

270.00 280.00 290.00 293.15 298.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est kg ⋅ m−3

882.8 ± 1.7 874.8 ± 0.7 866.8 ± 0.7 864.3 ± 0.7 860.3 ± 1.2

30-til/kur 30-til/kur 37-til

206

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Octylnonyl)benzene

[20216-92-6]

C23H40

MW = 316.57

355

C23H40

MW = 316.57

356

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

849.1 ± 1.0

49-foe/fen

1-Hexadecyl-2-methylbenzene

[112098-25-6]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.332. Coefficient ρ = A + BT 1059.93 A -0.680 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

282.35 372.15

ρexp ± 2σ est kg ⋅ m−3

867.6 ± 2.0 807.2 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.33 0.33

1888-kra/got 1888-kra/got

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

ρexp ± 2σ est

ρexp ± 2σ est

T K

kg ⋅ m−3

869.5 ± 4.7 862.7 ± 3.7 860.6 ± 3.4 857.2 ± 2.9

849.1 ± 1.8 842.3 ± 1.5 835.5 ± 1.4 828.7 ± 1.3

310.00 320.00 330.00 340.00

1-Hexadecyl-3-methylbenzene

T K

kg ⋅ m−3

[5775-29-1]

350.00 360.00 370.00 380.00 C23H40

ρexp ± 2σ est kg ⋅ m−3

821.9 ± 2.3 815.1 ± 3.3 808.3 ± 4.3 801.5 ± 5.3 MW = 316.57

357

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.622. Coefficient ρ = A + BT 1055.54 A -0.680 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

284.15 372.45

ρexp ± 2σ est kg ⋅ m−3

861.7 ± 2.0 802.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.62 0.62

1888-kra/got 1888-kra/got cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

207

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m

865.1 ± 4.9 858.3 ± 3.9 856.2 ± 3.6 852.8 ± 3.1

280.00 290.00 293.15 298.15

ρexp ± 2σ est

T K

−3

kg ⋅ m

844.7 ± 1.9 837.9 ± 1.5 831.1 ± 1.3 824.3 ± 1.3

310.00 320.00 330.00 340.00

1-Hexadecyl-4-methylbenzene

T K

−3

[154177-08-9]

350.00 360.00 370.00 380.00

C23H40

ρexp ± 2σ est kg ⋅ m−3

817.5 ± 2.3 810.7 ± 3.2 803.9 ± 4.2 797.1 ± 5.2

MW = 316.57

358

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.710. Coefficient ρ = A + BT 1055.05 A -0.680 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

300.65 372.15

ρexp ± 2σ est −3

kg ⋅ m

849.9 ± 2.0 802.7 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.71 0.71

1888-kra/got 1888-kra/got

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m

855.7 ± 4.4 852.3 ± 3.9 844.3 ± 2.7 837.5 ± 1.8

293.15 298.15 310.00 320.00

ρexp ± 2σ est

T K

−3

kg ⋅ m

830.7 ± 1.5 823.9 ± 0.5 817.1 ± 1.5

330.00 340.00 350.00

(1-Butyltetradecyl)benzene

T K

−3

[500015-05-4]

360.00 370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

810.3 ± 2.5 803.5 ± 3.4 796.7 ± 4.4

C24H42

MW = 330.60

359

C24H42

MW = 330.60

360

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

855.9 ± 1.5

44-pet/lap

(1,1-Dimethylhexadecyl)benzene

[500035-63-2]

Table 1. Experimental value with uncertainty. T K 292.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

887.8 ± 2.0

Landolt-Börnstein New Series IV/8E

41-pet/lap

208

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1,2-Dimethyl-4-hexadecyl-benzene

[15880-24-7]

C24H42

MW = 330.60

361

C24H42

MW = 330.60

362

C24H42

MW = 330.60

363

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

888.0 ± 1.0

66-mek/lyu

1,4-Dinonylbenzene

[40775-34-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

855.7 ± 1.0

60-pet/nik

2,4-Dimethyl-1-hexadecylbenzene

[500035-42-7]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.756. Coefficient ρ = A + BT 1058.78 A -0.680 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

306.65 372.55

ρexp ± 2σ est −3

kg ⋅ m

849.5 ± 2.0 806.2 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.76 0.76

1888-kra/got 1888-kra/got

Table 3. Recommended values. T K 293.15 298.15 310.00 320.00

ρexp ± 2σ est −3

kg ⋅ m

859.4 ± 4.7 856.0 ± 4.2 848.0 ± 3.1 841.2 ± 2.1

T K 330.00 340.00 350.00

ρexp ± 2σ est −3

kg ⋅ m

834.4 ± 1.5 827.6 ± 1.3 820.8 ± 1.5

T K 360.00 370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

814.0 ± 2.2 807.2 ± 3.1 800.4 ± 4.1

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 Hexapropylbenzene

[2456-68-0]

209

C24H42

MW = 330.60

364

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.0664 · 10-2 (combined temperature ranges, weighted), σc,uw = 8.1398 · 10-3 (combined temperature ranges, unweighted). T = 376.15 to 493.15 K ρ = A + BT + CT 2 + DT 3 + … 1.08996 · 103 -7.27544 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

376.15 383.15 423.15 1)

ρexp ± 2σ est kg ⋅ m

−3

816.30 ± 1.00 811.20 ± 1.00 782.10 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.00 -0.00 -0.00

… … …

37-gro/ipa( ) 37-gro/ipa( ) 37-gro/ipa( )

Not included in Fig. 1.

T K

473.15 493.15

ρexp ± 2σ est kg ⋅ m

−3

745.70 ± 1.00 731.20 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.02 0.03

… …

37-gro/ipa( ) 37-gro/ipa( )

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

370.00 380.00 390.00 400.00 410.00

ρ ± σ fit kg ⋅ m−3 820.77 ± 1.31 813.50 ± 1.23 806.22 ± 1.15 798.94 ± 1.09 791.67 ± 1.04

T K

420.00 430.00 440.00 450.00 460.00

ρ ± σ fit kg ⋅ m−3 784.39 ± 1.01 777.12 ± 1.00 769.84 ± 1.01 762.57 ± 1.04 755.29 ± 1.09

T K

470.00 480.00 490.00 500.00

ρ ± σ fit kg ⋅ m−3 748.02 ± 1.15 740.74 ± 1.23 733.47 ± 1.32 726.19 ± 1.42

cont.

Landolt-Börnstein New Series IV/8E

210

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

Hexapropylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Octadecylbenzene

[4445-07-2]

C24H42

MW = 330.60

365

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.9592 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.2970 · 10-1 (combined temperature ranges, unweighted). Coefficient A B C

T = 293.15 to 344.65 K ρ = A + BT + CT 2 + DT 3 + … 8.59778 · 102 5.19608 · 10-1 -1.81975 · 10-3 cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

211

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 314.15 344.65 313.15

ρexp ± 2σ est −3

kg ⋅ m

856.30 ± 1.00 843.70 ± 2.00 822.40 ± 2.00 843.90 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.58 0.28 -0.30 -0.14

39-sui/gem(∆) 39-wat/lee(◆) 39-wat/lee(◆) 42-lar/tho( )

{

T K

323.15 314.15 333.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

837.70 ± 1.00 843.40 ± 0.70 831.00 ± 0.70 855.20 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 -0.02 0.09 -0.52

{ … …

42-lar/tho( ) 43-wib/ove( ) 43-wib/ove( ) 49-foe/fen(∇)

ρ

ρ

Further references: [43-het/shc, 47-sch/sti].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

212

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Octadecylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

857.42 ± 0.95 855.72 ± 1.15 852.94 ± 1.45

851.88 ± 1.51 845.98 ± 1.46 839.71 ± 1.05

300.00 310.00 320.00

1-Hexadecyl-2,4,5-trimethylbenzene

[500035-65-4]

T K

330.00 340.00 350.00

ρ ± σ fit kg ⋅ m−3 833.08 ± 0.82 826.08 ± 1.51 818.72 ± 3.58

C25H44

MW = 344.62

366

C25H44

MW = 344.62

367

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

878.2 ± 2.0

42-pet/che

1-Hexadecyl-2,4,6-trimethylbenzene

[500035-43-8]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.778. Coefficient ρ = A + BT A 1058.92 B -0.680

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

372.35 313.15

ρexp ± 2σ est kg ⋅ m−3

806.5 ± 2.0 845.2 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.78 -0.78

1888-kra/got 1888-kra/got

Table 3. Recommended values. T K 310.00 320.00 330.00

ρexp ± 2σ est kg ⋅ m−3

848.1 ± 3.4 841.3 ± 2.4 834.5 ± 1.5

T K 340.00 350.00 360.00

ρexp ± 2σ est kg ⋅ m−3

827.7 ± 1.4 820.9 ± 1.5 814.1 ± 1.9

T K 370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

807.3 ± 2.8 800.5 ± 3.8

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1-Methyl-4-(1-methylheptadecyl)benzene

[500035-64-3]

213

C25H44

MW = 344.62

368

C25H44

MW = 344.62

369

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

856.3 ± 1.0

41-wel/hen

1-Methyl-4-octadecylbenzene

[94135-41-8]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.1334 · 10-1 (combined temperature ranges, weighted), σc,uw = 4.4144 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.04 K ρ = A + BT + CT 2 + DT 3 + … 1.04270 · 103 -6.19002 · 10-1 -7.10125 · 10-5

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.93

ρexp ± 2σ est −3

kg ⋅ m

868.30 ± 1.00 855.10 ± 1.00 843.50 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.02 -0.04 0.13

… … …

47-sch( ) 47-sch( ) 47-sch( )

T K

333.15 372.04

ρexp ± 2σ est −3

kg ⋅ m

828.50 ± 1.00 802.60 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.10 0.02

… …

47-sch( ) 47-sch( )

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 870.39 ± 1.19 863.81 ± 1.07 857.22 ± 1.02 855.14 ± 1.02 851.83 ± 1.01

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 850.61 ± 1.02 843.98 ± 1.03 837.35 ± 1.05 830.70 ± 1.06 824.03 ± 1.06

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 817.35 ± 1.05 810.66 ± 1.06 803.95 ± 1.08 797.22 ± 1.16

cont.

Landolt-Börnstein New Series IV/8E

214

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

1-Methyl-4-octadecylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Nonadecylbenzene

[29136-19-4]

C25H44

MW = 344.62

370

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.1440 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.6440 · 10-2 (combined temperature ranges, unweighted). Coefficient A B

T = 308.15 to 343.15 K ρ = A + BT + CT 2 + DT 3 + … 1.04815 · 103 -6.52690 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

215

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

−3

kg ⋅ m

847.00 ± 1.00 843.90 ± 1.00 840.40 ± 1.00 837.20 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.02 0.14 -0.10 -0.03

…) …) …) …)

86-chu/sin( 86-chu/sin( 86-chu/sin( 86-chu/sin(

T K

328.15 333.15 338.15 343.15

ρexp ± 2σ est −3

kg ⋅ m

833.90 ± 1.00 830.70 ± 1.00 827.50 ± 1.00 824.20 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.07 -0.00 0.06 0.02

…) …) …) …)

86-chu/sin( 86-chu/sin( 86-chu/sin( 86-chu/sin(

ρ

ρ

308.15 313.15 318.15 323.15

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

216

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Nonadecylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

852.34 ± 1.06 845.81 ± 1.02

300.00 310.00

320.00 330.00

1-Methyl-4-(1-octyldecyl)benzene

ρ ± σ fit kg ⋅ m−3

T K

839.29 ± 1.00 832.76 ± 1.00

[4445-08-3]

340.00 350.00

C25H44

ρ ± σ fit kg ⋅ m−3 826.23 ± 1.02 819.71 ± 1.06

MW = 344.62

371

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.5250 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.8565 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05006 · 103 -6.65604 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.95

ρexp ± 2σ est kg ⋅ m

−3

868.10 ± 1.00 854.90 ± 1.00 843.30 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.15 -0.04 0.21

… … …

68-ano-1( ) 68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est kg ⋅ m

−3

828.30 ± 1.00 802.40 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.01 -0.02

… …

68-ano-1( ) 68-ano-1( )

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 870.34 ± 1.06 863.69 ± 1.04 857.03 ± 1.02 854.94 ± 1.02 851.61 ± 1.01

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 850.38 ± 1.01 843.72 ± 1.00 837.06 ± 1.00 830.41 ± 1.01 823.75 ± 1.02

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 817.10 ± 1.03 810.44 ± 1.05 803.78 ± 1.08 797.13 ± 1.11

cont.

Landolt-Börnstein New Series IV/8E

217

ρ

ρ

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(3-Octylundecyl)benzene

[5637-96-7]

C25H44

MW = 344.62

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.1276 · 10-1 (combined temperature ranges, weighted), σc,uw = 9.2387 · 10-2 (combined temperature ranges, unweighted). Coefficient A B C

T = 273.15 to 408.15 K ρ = A + BT + CT 2 + DT 3 + … 1.03411 · 103 -5.57661 · 10-1 -1.68489 · 10-4

cont.

Landolt-Börnstein New Series IV/8E

372

218

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(3-Octylundecyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

−3

kg ⋅ m

855.80 ± 1.00 844.10 ± 1.00 829.60 ± 1.00 804.00 ± 1.00 792.00 ± 1.00 778.10 ± 1.00 869.90 ± 1.00 856.00 ± 1.00 844.10 ± 1.00 829.60 ± 1.00 804.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.35 -0.33 -0.02 0.68 -0.27 -0.33 0.69 -0.15 -0.33 -0.02 0.68

49-foe/fen(◆) 55-cut( ) 55-cut( ) 55-cut( ) 55-cut( ) 55-cut( ) 55-sch/whi( ) 55-sch/whi( ) 55-sch/whi( ) 55-sch/whi( ) 55-sch/whi( )

… … … … …

{ { { { {

T K

310.95 333.15 352.55 372.05 388.15 408.15 273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

844.10 ± 1.00 829.60 ± 1.00 816.79 ± 1.00 803.99 ± 1.00 792.02 ± 1.00 777.97 ± 1.00 869.70 ± 1.00 855.80 ± 1.00 843.90 ± 1.00 829.40 ± 1.00 803.80 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.31 -0.02 0.23 0.68 -0.25 -0.46 0.49 -0.35 -0.51 -0.22 0.49

58-cut/mcm(∆) 58-cut/mcm(∆) 58-cut/mcm(∆) 58-cut/mcm(∆) 58-cut/mcm(∆) 58-cut/mcm(∆) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇)

ρ

ρ

293.15 310.93 333.15 372.04 388.15 408.15 273.15 293.15 310.93 333.15 372.04

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

219

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

871.26 ± 1.04 864.75 ± 1.02 858.22 ± 1.01 856.15 ± 1.01 852.86 ± 1.01 851.65 ± 1.01

270.00 280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

T K

845.04 ± 1.00 838.40 ± 1.00 831.73 ± 1.01 825.03 ± 1.01 818.29 ± 1.01 811.52 ± 1.01

310.00 320.00 330.00 340.00 350.00 360.00

1,4-bis(1-Methylnonyl)benzene

[6796-14-1]

T K

370.00 380.00 390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 804.71 ± 1.01 797.87 ± 1.01 790.99 ± 1.01 784.09 ± 1.02 777.15 ± 1.04 770.17 ± 1.07

C26H46

MW = 358.65

373

C26H46

MW = 358.65

374

Table 1. Experimental value with uncertainty. T K 323.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

832.5 ± 1.0

66-stu

1,4-bis(1-Propylheptyl)benzene

[6796-18-5]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.600. Coefficient ρ = A + BT A 1061.67 B -0.720

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 323.15

ρexp ± 2σ est kg ⋅ m

−3

850.0 ± 1.0 829.6 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.60 0.60

66-stu 66-stu

Table 3. Recommended values. T K 290.00 293.15

Landolt-Börnstein New Series IV/8E

ρexp ± 2σ est −3

kg ⋅ m

852.9 ± 1.9 850.6 ± 1.6

T K 298.15 310.00

ρexp ± 2σ est −3

kg ⋅ m

847.0 ± 1.2 838.5 ± 0.8

T K 320.00 330.00

ρexp ± 2σ est kg ⋅ m−3

831.3 ± 1.3 824.1 ± 2.3

220

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1,4-bis(4-Propylheptyl)benzene

[6796-32-3]

C26H46

MW = 358.65

375

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.600. Coefficient ρ = A + BT A 1064.70 B -0.700 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 323.15

ρexp ± 2σ est kg ⋅ m−3

858.9 ± 1.0 839.1 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.60 0.60

66-stu 66-stu

Table 3. Recommended values. T K 290.00 293.15

ρexp ± 2σ est

ρexp ± 2σ est

T K 298.15 310.00

kg ⋅ m−3

861.7 ± 1.9 859.5 ± 1.6

(1-Butylhexadecyl)benzene

kg ⋅ m−3

856.0 ± 1.2 847.7 ± 0.8 [2400-04-6]

T K 320.00 330.00

C26H46

ρexp ± 2σ est kg ⋅ m−3

840.7 ± 1.3 833.7 ± 2.3 MW = 358.65

376

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.198. Coefficient ρ = A + BT A 1054.52 B -0.680 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 310.93 333.15 372.04 1)

ρexp ± 2σ est kg ⋅ m

−3

851.4 ± 4.0 843.2 ± 0.5 827.7 ± 0.5 801.7 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

-3.78 0.11 -0.28 0.17

42-pet/che1) 47-sch 47-sch 47-sch

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

310.00 320.00 330.00

ρexp ± 2σ est −3

kg ⋅ m

843.7 ± 4.0 836.9 ± 3.1 830.1 ± 1.9

T K

340.00 350.00 360.00

ρexp ± 2σ est −3

kg ⋅ m

823.3 ± 0.9 816.5 ± 1.8 809.7 ± 3.0

T K

370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

802.9 ± 4.2 796.1 ± 5.1

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1-Butyl-4-hexadecylbenzene

[2655-92-7]

221

C26H46

MW = 358.65

377

C26H46

MW = 358.65

378

Table 1. Experimental value with uncertainty. T K

323.15 323.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

833.3 ± 1.0 833.3 ± 1.0

65-stu 66-stu-1

1,3-Didecylbenzene

[55191-38-3]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 9.5204 · 10-2 (combined temperature ranges, weighted), σc,uw = 2.3753 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05043 · 103 -6.98974 · 10-1 8.20830 · 10-5

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.95 273.15 293.15 310.95 333.15 372.05 273.15 293.15 310.95

ρexp ± 2σ est −3

kg ⋅ m

841.10 ± 0.50 865.70 ± 0.50 852.60 ± 0.50 841.10 ± 0.50 826.70 ± 0.50 801.80 ± 0.50 865.70 ± 0.50 852.60 ± 0.50 841.10 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.08 0.07 0.02 0.08 0.02 0.06 0.07 0.02 0.08

…

57-ano-3( ) 58-ano(∆) 58-ano(∆) 58-ano(∆) 58-ano(∆) 58-ano(∆) 58-cla(◆) 58-cla(◆) 58-cla(◆)

T K

333.15 372.05 372.05 310.95 273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

826.70 ± 0.50 801.80 ± 0.60 801.80 ± 0.60 841.10 ± 0.50 865.50 ± 0.50 852.40 ± 0.50 840.90 ± 0.50 826.50 ± 0.50 801.60 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 0.06 0.06 0.08 -0.13 -0.18 -0.12 -0.18 -0.14

58-cla(◆) 58-cla(◆) 58-cla/dix(✕ ) 59-dix/cla(∇) 68-ano-1( ) 68-ano-1( ) 68-ano-1( ) 68-ano-1( ) 68-ano-1( )

{ { { { {

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 867.69 ± 0.57 861.15 ± 0.53 854.63 ± 0.51 852.58 ± 0.51 849.33 ± 0.51

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 848.12 ± 0.51 841.64 ± 0.51 835.16 ± 0.52 828.71 ± 0.52 822.27 ± 0.52

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 815.84 ± 0.53 809.44 ± 0.55 803.05 ± 0.59 796.67 ± 0.65

cont.

Landolt-Börnstein New Series IV/8E

222

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

1,3-Didecylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1,4-Didecylbenzene

[2655-95-0]

C26H46

MW = 358.65

379

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 8.6979 · 10-2 (combined temperature ranges, weighted), σc,uw = 2.7959 · 10-2 (combined temperature ranges, unweighted). Coefficient A B

T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04204 · 103 -6.45387 · 10-1

cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

223

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

−3

kg ⋅ m

841.40 ± 0.60 827.10 ± 0.60 802.00 ± 0.60 841.40 ± 0.60 841.40 ± 0.50 833.60 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.03 0.07 0.07 0.04 0.04 0.12

52-ano(∇) 52-ano(∇) 52-ano(∇) 57-ano-3(∆) 59-dix/cla( ) 65-stu(✕ )

{

T K

323.15 273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

833.60 ± 1.00 865.70 ± 0.50 852.80 ± 0.50 841.20 ± 0.50 826.90 ± 0.50 801.80 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.12 -0.05 -0.04 -0.16 -0.13 -0.12

66-stu(◆) 68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1(

…) …) …) …) …)

ρ

ρ

310.93 333.15 372.04 310.95 310.95 323.15

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont.

Landolt-Börnstein New Series IV/8E

224

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1,4-Didecylbenzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

T K

867.78 ± 0.57 861.33 ± 0.53 854.88 ± 0.53 852.84 ± 0.54 849.62 ± 0.56

270.00 280.00 290.00 293.15 298.15

300.00 310.00 320.00 330.00 340.00

1,4-Dimethyl-2-octadecylbenzene

ρ ± σ fit kg ⋅ m−3

T K

848.42 ± 0.57 841.97 ± 0.62 835.51 ± 0.67 829.06 ± 0.72 822.61 ± 0.75 [55191-39-4]

350.00 360.00 370.00 380.00

C26H46

ρ ± σ fit kg ⋅ m−3 816.15 ± 0.76 809.70 ± 0.72 803.25 ± 0.63 796.79 ± 0.51

MW = 358.65

380

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.9882 · 10-1 (combined temperature ranges, weighted), σc,uw = 7.1483 · 10-2 (combined temperature ranges, unweighted). T = 310.95 to 408.15 K ρ = A + BT + CT 2 + DT 3 + … 1.01620 · 103 -4.55850 · 10-1 -2.81822 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.95 333.15 372.04 388.15 333.15

ρexp ± 2σ est kg ⋅ m−3

847.30 ± 0.50 832.80 ± 0.50 807.90 ± 0.50 796.60 ± 0.50 832.80 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.10 -0.25 0.30 -0.20 -0.25

…

57-ano-3( ) 58-ano(∆) 58-ano(∆) 58-ano(∆) 58-cla(∇)

T K

372.05 388.15 408.15 372.05 310.95

ρexp ± 2σ est kg ⋅ m−3

807.80 ± 0.60 796.60 ± 0.50 783.20 ± 0.50 807.80 ± 0.60 847.30 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.21 -0.20 0.00 0.21 0.10

58-cla(∇) 58-cla(∇) 58-cla(∇) 58-cla/dix(◆) 59-dix/cla( )

{

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 847.80 ± 0.58 841.47 ± 0.54 835.08 ± 0.53 828.63 ± 0.55

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 822.13 ± 0.57 815.57 ± 0.58 808.95 ± 0.57 802.28 ± 0.56

T K

390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 795.55 ± 0.55 788.77 ± 0.57 781.93 ± 0.65 775.03 ± 0.79 cont.

Landolt-Börnstein New Series IV/8E

225

ρ

ρ

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Eicosylbenzene

[2398-68-7]

C26H46

MW = 358.65

381

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.117. Coefficient ρ = A + BT A 1042.04 B -0.640 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

333.15 372.04 333.15

ρexp ± 2σ est −3

kg ⋅ m

828.7 ± 0.6 804.1 ± 0.6 828.7 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-0.12 0.16 -0.12

47-sch 47-sch 52-ano-10

T K

372.04 310.95 310.95

ρexp ± 2σ est −3

kg ⋅ m

804.1 ± 0.6 843.0 ± 0.6 843.0 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

0.16 -0.03 -0.03

52-ano-10 57-ano-13 59-dix/cla cont.

Landolt-Börnstein New Series IV/8E

226

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Eicosylbenzene (cont.) Table 3. Recommended values. T K 310.00 320.00 330.00

ρexp ± 2σ est

ρexp ± 2σ est

T K 340.00 350.00 360.00

−3

kg ⋅ m

843.6 ± 1.3 837.2 ± 0.8 830.8 ± 0.4

1-Ethyloctadecylbenzene

−3

kg ⋅ m

824.4 ± 0.5 818.0 ± 0.7 811.6 ± 1.2

[2400-02-4]

T K 370.00 380.00

C26H46

ρexp ± 2σ est kg ⋅ m−3

805.2 ± 1.7 798.8 ± 2.2

MW = 358.65

382

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.272. Coefficient ρ = A + BT 1048.61 A -0.660 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.93 333.15 372.04

ρexp ± 2σ est kg ⋅ m−3

843.4 ± 0.5 828.4 ± 0.5 803.4 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

0.00 -0.33 0.33

47-sch 47-sch 47-sch

Table 3. Recommended values. T K

310.00 320.00 330.00

ρexp ± 2σ est

ρexp ± 2σ est

T K

−3

kg ⋅ m

844.0 ± 1.5 837.4 ± 1.0 830.8 ± 0.5

kg ⋅ m

824.2 ± 0.3 817.6 ± 0.6 811.0 ± 1.1

340.00 350.00 360.00

1-Ethyl-4-octadecylbenzene

T K

−3

[2655-91-6]

370.00 380.00

C26H46

ρexp ± 2σ est kg ⋅ m−3

804.4 ± 1.6 797.8 ± 2.1

MW = 358.65

383

Table 1. Experimental value with uncertainty. T K

323.15 323.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

834.9 ± 1.0 834.9 ± 1.0

65-stu 66-stu-1

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1-(1-Heptyldodecyl)-4-methylbenzene

[55191-36-1]

227

C26H46

MW = 358.65

384

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2203 · 10-1 (combined temperature ranges, weighted), σc,uw = 3.7098 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04682 · 103 -6.61105 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.93 333.15 372.04 310.95

ρexp ± 2σ est kg ⋅ m

−3

866.40 ± 0.50 853.00 ± 0.50 841.30 ± 0.50 826.80 ± 0.50 800.90 ± 0.60 841.30 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.16 -0.02 0.04 0.23 0.04 0.05

47-sch(∆) 47-sch(∆) 47-sch(∆) 47-sch(∆) 47-sch(∆) 57-ano-3( )

{

T K

310.95 273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est kg ⋅ m

−3

841.30 ± 0.50 866.20 ± 0.50 852.80 ± 0.50 841.10 ± 0.50 826.60 ± 0.50 800.70 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.05 -0.04 -0.22 -0.15 0.03 -0.16

…

59-dix/cla( ) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 868.32 ± 0.55 861.71 ± 0.53 855.10 ± 0.52 853.02 ± 0.52 849.71 ± 0.51

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 848.49 ± 0.51 841.88 ± 0.50 835.27 ± 0.50 828.66 ± 0.50 822.05 ± 0.52

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 815.43 ± 0.55 808.82 ± 0.60 802.21 ± 0.65 795.60 ± 0.72

cont.

Landolt-Börnstein New Series IV/8E

228

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

1-(1-Heptyldodecyl)-4-methylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1-Heptadecyl-2,4,6-trimethylbenzene

[500035-67-6]

C26H46

MW = 358.65

385

Table 1. Experimental value with uncertainty. T K 310.95

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

851.3 ± 0.5

57-ano-13

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 (1-Hexyltetradecyl)benzene

[2398-64-3]

C26H46

229 MW = 358.65

386

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 8.9343 · 10-2 (combined temperature ranges, weighted), σc,uw = 4.4872 · 10-2 (combined temperature ranges, unweighted). T = 293.15 to 372.04 K ρ = A + BT + CT 2 + DT 3 + … 1.04665 · 103 -6.58474 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

kg ⋅ m

−3

853.70 ± 0.50 841.90 ± 0.50 827.40 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.08 -0.00 0.12

{ { {

47-sch( ) 47-sch( ) 47-sch( )

T K

372.04 293.15

ρexp ± 2σ est kg ⋅ m

−3

801.60 ± 0.60 853.50 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.07 -0.12

{

47-sch( ) 49-foe/fen( )

…

ρ

ρ

293.15 310.95 333.15

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.) cont. Landolt-Börnstein New Series IV/8E

230

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Hexyltetradecyl)benzene (cont.) Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3

ρ ± σ fit kg ⋅ m−3

T K

855.70 ± 0.56 853.62 ± 0.55 850.33 ± 0.53 849.11 ± 0.53

842.53 ± 0.51 835.94 ± 0.50 829.36 ± 0.51 822.77 ± 0.53

310.00 320.00 330.00 340.00

1-Hexyl-4-tetradecylbenzene

[500035-66-5]

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 816.19 ± 0.58 809.60 ± 0.64 803.02 ± 0.72 796.43 ± 0.82

C26H46

MW = 358.65

387

C26H46

MW = 358.65

388

Table 1. Experimental value with uncertainty. T K 323.15 323.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

833.1 ± 1.0 833.1 ± 1.0

65-stu 66-stu-1

(1-Methylnonadecyl)benzene

[2398-66-5]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.270. Coefficient ρ = A + BT A 1051.80 B -0.670 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.93 333.15 372.04

ρexp ± 2σ est kg ⋅ m

−3

843.2 ± 0.5 828.5 ± 0.5 802.9 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

-0.28 -0.09 0.37

47-sch 47-sch 47-sch

Table 3. Recommended values. T K 310.00 320.00 330.00

ρexp ± 2σ est −3

kg ⋅ m

844.1 ± 1.5 837.4 ± 1.0 830.7 ± 0.5

T K 340.00 350.00 360.00

ρexp ± 2σ est −3

kg ⋅ m

824.0 ± 0.3 817.3 ± 0.6 810.6 ± 1.1

T K 370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

803.9 ± 1.6 797.2 ± 2.1

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 (1-Octyldodecyl)benzene

[2398-65-4]

231

C26H46

MW = 358.65

389

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.9016 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.2962 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.01943 · 103 -4.88591 · 10-1 -2.64209 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 310.93 333.15 372.04 310.95 310.95

ρexp ± 2σ est −3

kg ⋅ m

853.20 ± 0.50 842.40 ± 0.50 827.00 ± 0.50 801.30 ± 0.60 842.40 ± 0.50 842.40 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.29 0.43 -0.33 0.22 0.44 0.44

47-sch(∇) 47-sch(∇) 47-sch(∇) 47-sch(∇) 57-ano-3( ) 59-dix/cla(∆)

{

T K

273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

866.30 ± 0.50 853.00 ± 0.50 842.20 ± 0.50 826.60 ± 0.50 801.10 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 -0.49 0.24 -0.73 0.02

…) …) …) …) …)

68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1(

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 868.25 ± 0.67 861.91 ± 0.58 855.52 ± 0.53 853.49 ± 0.52 850.27 ± 0.51

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 849.07 ± 0.51 842.58 ± 0.51 836.02 ± 0.52 829.42 ± 0.53 822.77 ± 0.53

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 816.06 ± 0.54 809.29 ± 0.57 802.48 ± 0.63 795.61 ± 0.73

cont.

Landolt-Börnstein New Series IV/8E

232

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

(1-Octyldodecyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1-Octyl-4-dodecylbenzene

[500035-91-6]

C26H46

MW = 358.65

390

C26H46

MW = 358.65

391

Table 1. Experimental value with uncertainty. T K

323.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

833.7 ± 1.0

65-stu

(1-Propylheptadecyl)benzene

[2400-03-5]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.152. Coefficient ρ = A + BT 1048.38 A -0.660 B cont.

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

233

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.93 333.15 372.04

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

843.2 ± 0.5 828.3 ± 0.5 803.0 ± 0.5

0.03 -0.20 0.17

47-sch 47-sch 47-sch

Table 3. Recommended values. ρexp ± 2σ est

T K 310.00 320.00 330.00

ρexp ± 2σ est

T K 340.00 350.00 360.00

−3

kg ⋅ m

843.8 ± 1.4 837.2 ± 0.9 830.6 ± 0.5

1,2,4,5-Tetrapentylbenzene

kg ⋅ m

824.0 ± 0.4 817.4 ± 0.6 810.8 ± 1.1 [6796-37-8]

ρexp ± 2σ est

T K 370.00 380.00

−3

kg ⋅ m−3

804.2 ± 1.6 797.6 ± 2.1

C26H46

MW = 358.65

392

C27H48

MW = 372.68

393

Table 1. Experimental value with uncertainty. T K

293.15 323.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

858.8 ± 1.0 838.3 ± 1.0

66-stu 66-stu

(1-Decylundecyl)benzene

[6703-80-6]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 7.0492 · 10-2 (combined temperature ranges, weighted), σc,uw = 2.3121 · 10-2 (combined temperature ranges, unweighted). T = 293.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04385 · 103 -6.50287 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 293.15 310.95 333.15

ρexp ± 2σ est −3

kg ⋅ m

853.10 ± 0.50 853.10 ± 0.50 853.30 ± 0.50 841.70 ± 0.50 827.20 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.12 -0.12 0.08 0.06 -0.01

… {

46-par/wes( ) 49-foe/fen( ) 52-ano(∆) 52-ano(∆) 52-ano(∆)

T K

372.05 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

801.90 ± 0.60 853.30 ± 0.50 841.70 ± 0.50 827.20 ± 0.50 801.90 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.01 0.08 0.06 -0.01 -0.01

52-ano(∆) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇) cont.

Landolt-Börnstein New Series IV/8E

234

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

(1-Decylundecyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 855.27 ± 0.53 853.22 ± 0.53 849.97 ± 0.52 848.76 ± 0.52

T K

310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 842.26 ± 0.50 835.76 ± 0.50 829.26 ± 0.50 822.75 ± 0.52

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 816.25 ± 0.55 809.75 ± 0.59 803.24 ± 0.66 796.74 ± 0.74

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1-Octadecyl-2,4,6-trimethylbenzene

[55282-67-2]

235

C27H48

MW = 372.68

394

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.4534 · 10-2 (combined temperature ranges, weighted), σc,uw = 1.0938 · 10-2 (combined temperature ranges, unweighted). T = 310.95 to 408.15 K ρ = A + BT + CT 2 + DT 3 + … 1.04400 · 103 -6.07441 · 10-1 -3.96672 · 10-5

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.95 333.15 372.04 388.15 333.15 372.05 388.15

ρexp ± 2σ est kg ⋅ m

−3

851.30 ± 0.50 837.20 ± 0.50 812.50 ± 0.60 802.30 ± 0.60 837.20 ± 0.50 812.50 ± 0.60 802.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 -0.03 -0.02 0.05 -0.03 -0.01 0.05

…

57-ano-3( ) 58-ano(◆) 58-ano(◆) 58-ano(◆) 58-cla(∆) 58-cla(∆) 58-cla(∆)

T K

408.15 372.05 310.95 333.15 372.04 388.15

ρexp ± 2σ est kg ⋅ m

−3

789.40 ± 0.50 812.50 ± 0.60 851.30 ± 0.50 837.20 ± 0.50 812.50 ± 0.60 802.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.06 -0.01 0.02 -0.03 -0.02 0.05

58-cla(∆) 58-cla/dix(✕ ) 59-dix/cla( ) 68-ano-1(∇) 68-ano-1(∇) 68-ano-1(∇)

{

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 851.88 ± 0.59 845.56 ± 0.53 839.22 ± 0.52 832.88 ± 0.54

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 826.54 ± 0.57 820.18 ± 0.60 813.82 ± 0.62 807.44 ± 0.62

T K

390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 801.06 ± 0.61 794.68 ± 0.62 788.28 ± 0.65 781.88 ± 0.74

cont.

Landolt-Börnstein New Series IV/8E

236

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

ρ

ρ

1-Octadecyl-2,4,6-trimethylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(1-Butyloctadecyl)benzene

[500035-44-9]

C28H50

MW = 386.70

395

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

855.4 ± 2.0

36-mik

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 (2-Decyldodecyl)benzene

[500034-56-0]

C28H50

237 MW = 386.70

396

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.0787 · 10-1 (combined temperature ranges, weighted), σc,uw = 3.5795 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05261 · 103 -6.59252 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

kg ⋅ m

−3

872.60 ± 0.50 859.40 ± 0.50 847.40 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.07 0.05 -0.21

… … …

68-ano-1( ) 68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est kg ⋅ m

−3

833.00 ± 0.50 807.40 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 0.07

… …

68-ano-1( ) 68-ano-1( )

ρ

ρ

273.15 293.15 310.95

ρexp ± 2σ est

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.) cont. Landolt-Börnstein New Series IV/8E

238

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(2-Decyldodecyl)benzene (cont.) Further references: [47-sch]. Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

874.61 ± 0.55 868.02 ± 0.54 861.42 ± 0.52 859.35 ± 0.52 856.05 ± 0.51

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3

T K

854.83 ± 0.51 848.24 ± 0.50 841.65 ± 0.50 835.05 ± 0.50 828.46 ± 0.52

300.00 310.00 320.00 330.00 340.00

Docosylbenzene

T K

[5634-22-0]

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 821.87 ± 0.55 815.28 ± 0.59 808.68 ± 0.65 802.09 ± 0.72

C28H50

MW = 386.70

397

C29H52

MW = 400.73

398

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

851.3 ± 1.0

36-mik

2-(1-Decylundecyl)-1,4-dimethylbenzene [55373-91-6]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 7.0390 · 10-2 (combined temperature ranges, weighted), σc,uw = 4.0288 · 10-2 (combined temperature ranges, unweighted). T = 293.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04998 · 103 -6.57020 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 310.95

ρexp ± 2σ est kg ⋅ m

−3

857.40 ± 0.50 845.60 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 -0.08

… …

68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est kg ⋅ m

−3

831.20 ± 0.50 805.50 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.10 -0.04

… …

68-ano-1( ) 68-ano-1( )

cont.

Landolt-Börnstein New Series IV/8E

239

ρ

ρ

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00

Landolt-Börnstein New Series IV/8E

ρ ± σ fit kg ⋅ m−3 859.45 ± 0.61 857.38 ± 0.59 854.09 ± 0.57 852.88 ± 0.56

T K

310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 846.31 ± 0.53 839.74 ± 0.50 833.17 ± 0.50 826.60 ± 0.52

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 820.03 ± 0.56 813.46 ± 0.63 806.89 ± 0.71 800.32 ± 0.82

240

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

1,3,5-Trioctylbenzene

[7694-77-1]

C30H54

MW = 414.76

399

C31H56

MW = 428.79

400

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

852.5 ± 1.0

66-mak/rei

(1-Dodecyltridecyl)benzene

[6006-90-2]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.2260 · 10-1 (combined temperature ranges, weighted), σc,uw = 4.1384 · 10-2 (combined temperature ranges, unweighted). T = 293.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04305 · 103 -6.45043 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. z

ρexp ± 2σ est −3

kg ⋅ m

310.93 333.15 372.04 293.15 310.93

842.60 ± 0.50 828.00 ± 0.50 803.20 ± 0.60 853.90 ± 0.50 842.60 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.11 -0.16 0.13 -0.06 0.11

47-sch(∇) 47-sch(∇) 47-sch(∇) 49-foe/fen( ) 52-ano( )

{

…

z

ρexp ± 2σ est −3

kg ⋅ m

333.15 372.04 310.95 333.15 372.05

828.00 ± 0.50 803.20 ± 0.60 842.60 ± 0.50 828.00 ± 0.50 803.00 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.16 0.13 0.12 -0.16 -0.07

{ {

52-ano( ) 52-ano( ) 68-ano-1(∆) 68-ano-1(∆) 68-ano-1(∆)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 855.99 ± 0.57 853.96 ± 0.56 850.73 ± 0.55 849.54 ± 0.55

T K

310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 843.09 ± 0.52 836.64 ± 0.51 830.19 ± 0.50 823.74 ± 0.51

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 817.29 ± 0.53 810.84 ± 0.57 804.39 ± 0.63 797.94 ± 0.71

cont.

Landolt-Börnstein New Series IV/8E

241

ρ

ρ

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(1-Butyldocosyl)benzene

[500035-45-0]

C32H58

MW = 442.81

401

C35H64

MW = 484.89

402

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

853.2 ± 2.0

36-mik

(1-Tetradecylpentadecyl)benzene

[56247-97-3]

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.289. Coefficient ρ = A + BT 1041.34 A -0.640 B cont.

Landolt-Börnstein New Series IV/8E

242

2.6 Alkylbenzenes (CnH2n-6), C17 - C50

(1-Tetradecylpentadecyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

310.93 333.15 372.04 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

842.0 ± 0.5 828.1 ± 0.5 803.6 ± 0.5 842.0 ± 0.5 828.1 ± 0.5 803.6 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

-0.35 -0.03 0.36 -0.33 -0.03 0.37

52-ano-10 52-ano-10 52-ano-10 68-ano-1 68-ano-1 68-ano-1

Table 3. Recommended values. T K 310.00 320.00 330.00

ρexp ± 2σ est

ρexp ± 2σ est

T K 340.00 350.00 360.00

kg ⋅ m−3

842.9 ± 1.5 836.5 ± 1.0 830.1 ± 0.5

(1-Hexadecylheptadecyl)benzene

kg ⋅ m−3

823.7 ± 0.4 817.3 ± 0.6 810.9 ± 1.1

[55517-74-3]

T K 370.00 380.00

C39H72

ρexp ± 2σ est kg ⋅ m−3

804.5 ± 1.6 798.1 ± 2.1

MW = 541.00

403

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.231. Coefficient ρ = A + BT 1041.68 A -0.640 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

333.15 358.15 372.04

ρexp ± 2σ est −3

kg ⋅ m

828.3 ± 0.5 812.3 ± 0.5 803.9 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

-0.16 -0.16 0.33

68-ano-1 68-ano-1 68-ano-1

Table 3. Recommended values. T K 330.00 340.00

ρexp ± 2σ est −3

kg ⋅ m

830.5 ± 1.2 824.1 ± 0.8

T K 350.00 360.00

ρexp ± 2σ est −3

kg ⋅ m

817.7 ± 0.3 811.3 ± 0.4

T K 370.00 380.00

ρexp ± 2σ est kg ⋅ m−3

804.9 ± 0.8 798.5 ± 1.3

Landolt-Börnstein New Series IV/8E

2.6 Alkylbenzenes (CnH2n-6), C17 - C50 1,2-bis(1-Butyloctadecyl)benzene

[500035-60-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

847.0 ± 2.0

Landolt-Börnstein New Series IV/8E

36-mik

C50H94

243 MW = 695.30

404

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

245

3 Tabulated Data on Density - Alkenylbenzenes (CnH2n-8) 3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 Ethenylbenzene

[100-42-5]

C8H8

MW = 104.15

405

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 9.1577 · 10-1 (combined temperature ranges, weighted), σc,uw = 7.2242 · 10-2 (combined temperature ranges, unweighted). T = 255.35 to 418.15 K ρ = A + BT + CT 2 + DT 3 + … 1.16852 · 103 -8.79715 · 10-1 -5.46317 · 10-5

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

416.15 273.15 286.15 293.15 255.35 268.75 273.15 288.75 294.25 310.95 288.71 273.15 293.15 298.15 313.15 333.15 353.15 373.15 393.15 418.15 288.71 293.15 298.15 293.15 1)

ρexp ± 2σ est kg ⋅ m

−3

792.60 ± 0.60 925.10 ± 1.00 912.10 ± 0.60 905.60 ± 0.20 941.00 ± 2.00 929.70 ± 2.00 925.90 ± 2.00 912.70 ± 3.00 908.00 ± 3.00 893.80 ± 4.00 910.37 ± 0.30 924.00 ± 0.40 905.60 ± 0.20 901.00 ± 0.20 887.30 ± 0.40 868.90 ± 0.40 850.60 ± 0.40 832.20 ± 0.60 813.80 ± 0.60 790.90 ± 0.60 910.38 ± 0.20 905.74 ± 0.20 901.66 ± 0.20 905.50 ± 0.20

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.36 0.95 -0.21 -0.33 0.68 1.55 1.75 2.76 3.07 4.11 0.39 -0.15 -0.33 -0.37 -0.38 -0.47 -0.43 -0.44 -0.41 -0.21 0.40 -0.19 0.29 -0.43

1883-sch-3(✕ ) 1883-weg(✕ ) 03-kla/kei(✕ ) 39-pat/sch(∇) 42-gar/ada(✕ ) 42-gar/ada1) 42-gar/ada1) 42-gar/ada1) 42-gar/ada1) 42-gar/ada1) 43-pfe(◆) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 43-woo/hig(✕ ) 45-cra/pfe( ) 49-dre/mar(∆) 49-dre/mar(∆) 49-foe/fen( )

…

{

T K

283.15 293.15 298.15 303.15 311.55 323.15 333.15 343.15 298.15 313.15 303.15 313.15 323.15 333.15 343.15 353.15 363.15 298.15 298.15 298.15 298.15 303.15 308.15

ρexp ± 2σ est kg ⋅ m

−3

915.00 ± 0.60 905.80 ± 0.60 901.00 ± 0.60 897.00 ± 0.60 889.00 ± 0.60 878.90 ± 0.70 869.00 ± 0.70 860.00 ± 0.70 901.60 ± 0.50 888.50 ± 1.00 895.40 ± 0.50 887.10 ± 0.50 878.50 ± 0.50 869.90 ± 0.50 861.10 ± 0.60 851.90 ± 0.60 841.20 ± 0.60 901.48 ± 0.40 901.42 ± 0.40 901.51 ± 0.40 901.60 ± 0.60 897.10 ± 0.60 892.60 ± 0.60

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

-0.04 -0.13 -0.37 0.19 -0.14 0.37 -0.37 -0.21 0.23 0.82 -1.41 -0.58 -0.03 0.53 0.89 0.87 -0.64 0.11 0.05 0.14 0.23 0.29 0.36

51-mat/aue-1(✕ ) 51-mat/aue-11) 51-mat/aue-11) 51-mat/aue-1(✕ ) 51-mat/aue-1(✕ ) 51-mat/aue-1(✕ ) 51-mat/aue-1(✕ ) 51-mat/aue-1(✕ ) 57-pet/smy(✕ ) 57-pet/smy1) 73-tok/pug1) 73-tok/pug(✕ ) 73-tok/pug(✕ ) 73-tok/pug(✕ ) 73-tok/pug(✕ ) 73-tok/pug(✕ ) 73-tok/pug(✕ ) 93-hai/guo(✕ ) 95-hai/cha(✕ ) 95-hai/min-1(✕ ) 97-ami/pat1) 97-ami/pat(✕ ) 97-ami/pat(✕ )

Not included in Fig. 1.

cont. Landolt-Börnstein New Series IV/8E

246

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

Ethenylbenzene (cont.)

ρ

ρ

Further references: [1884-gla, 1885-nas/ber, 1886-bru, 1891-gla, 1896-per, 1897-bil-1, 07-erf, 10von/eis, 11-hil/dun, 17-von-1, 29-sab, 32-vor/fis, 33-hof/lan, 34-bir/hag, 34-dyk, 35-ott/wen, 35-sho/sho, 37-mul, 38-sta, 42-jon/sco, 43-gol/jos, 45-gri, 48-tsc-1, 48-tsc-2, 49-boo/gre, 50-boo/gre, 52-ano-5, 55dre/mar, 55-jun/von, 56-sch/cor, 57-mal/mal, 58-lev/nic, 63-pud/kon, 68-ano, 75-mil/wac].

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

250.00 260.00 270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 945.17 ± 1.90 936.10 ± 1.36 927.01 ± 0.96 917.91 ± 0.67 908.80 ± 0.48 905.93 ± 0.44 901.37 ± 0.39

T K

300.00 310.00 320.00 330.00 340.00 350.00 360.00

ρ ± σ fit kg ⋅ m−3 899.68 ± 0.38 890.55 ± 0.35 881.41 ± 0.37 872.26 ± 0.44 863.10 ± 0.53 853.92 ± 0.63 844.74 ± 0.72

T K

370.00 380.00 390.00 400.00 410.00 420.00 430.00

ρ ± σ fit kg ⋅ m−3 835.54 ± 0.80 826.33 ± 0.85 817.12 ± 0.85 807.89 ± 0.81 798.65 ± 0.70 789.40 ± 0.55 780.14 ± 0.46

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 1-Ethenyl-2-methylbenzene

[611-15-4]

C9H10

247 MW = 118.18

406

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 4.2437 · 10-1 (combined temperature ranges, weighted), σc,uw = 2.6038 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 308.15 K ρ = A + BT + CT 2 + DT 3 + … 1.15379 · 103 -8.26824 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

285.70 286.40 286.55 287.25 293.15

ρexp ± 2σ est kg ⋅ m

−3

917.40 ± 0.60 916.80 ± 0.60 916.10 ± 0.60 915.50 ± 0.60 910.60 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.16 -0.18 -0.76 -0.78 -0.80

17-von-1(∆) 17-von-1(∆) 17-von-1(∆) 17-von-1(∆) 51-kut/nic( )

{

T K

273.15 298.15 308.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

928.40 ± 0.25 907.70 ± 0.25 899.20 ± 0.25 913.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.46 0.43 0.20 1.60

… … …

53-cle/wis( ) 53-cle/wis( ) 53-cle/wis( ) 56-sch/cor(∇)

Further references: [35-sho/sho, 59-sia].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 930.54 ± 0.64 922.28 ± 0.59 914.01 ± 0.58

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 911.40 ± 0.58 907.27 ± 0.49 905.74 ± 0.44

T K

310.00 320.00

ρ ± σ fit kg ⋅ m−3 897.47 ± 0.26 889.20 ± 0.29

cont.

Landolt-Börnstein New Series IV/8E

248

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

ρ

ρ

1-Ethenyl-2-methylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1-Ethenyl-3-methylbenzene

[100-80-1]

C9H10

MW = 118.18

407

Table 1. Experimental and recommended values with uncertainties. T K 289.15 297.15 291.15 293.15 273.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

906.0 ± 3.0 902.0 ± 4.0 902.0 ± 3.0 898.9 ± 2.0 928.3 ± 6.0

1)

26-tit 35-sho/sho1) 49-buc/col1) 51-kut/nic 53-cle/wis1)

T K 298.15 308.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

907.6 ± 6.0 899.2 ± 6.0 901.3 ± 1.5 901.0 ± 1.5 900.7 ± 1.5

53-cle/wis1) 53-cle/wis1) 56-sch/cor 58-lev/nic Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 1-Ethenyl-4-methylbenzene

[622-97-9]

C9H10

249 MW = 118.18

408

Table 1. Fit with estimated B coefficient for 8 accepted points. Deviation σw = 0.441. Coefficient ρ = A + BT A 1146.40 B -0.850 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.15 289.15 289.55 289.45 289.35 293.15 298.15 297.15 297.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

kg ⋅ m−3

897.4 ± 2.5 897.8 ± 3.0 900.3 ± 1.0 901.0 ± 2.0 901.1 ± 2.0 894.0 ± 3.0 881.3 ± 4.0 895.0 ± 2.0 893.0 ± 3.0

-1.52 -2.82 0.02 0.64 0.65 -3.22 -11.67 1.18 -0.82

T K

02-kla1) 03-kla/kei1) 12-von-1 12-von-1 12-von-1 34-lov/cam1) 35-ott/wen1) 35-sho/sho 49-buc/col1)

293.15 293.15 273.15 298.15 308.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

903.7 ± 4.0 876.0 ± 10.0 938.3 ± 6.0 917.3 ± 6.0 908.8 ± 6.0 896.1 ± 2.0 897.3 ± 1.0 897.0 ± 1.0 897.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

6.43 -21.22 24.08 24.33 24.33 -1.12 0.08 -0.22 -0.22

49-dre/mar1) 51-kut/nic1) 53-cle/wis1) 53-cle/wis1) 53-cle/wis1) 56-sch/cor 56-vai/ria 58-lev/nic 59-sia

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

908.4 ± 1.6 899.9 ± 1.1 897.2 ± 1.1 893.0 ± 1.5

(1-Methylethenyl)benzene

[98-83-9]

C9H10

MW = 118.18

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.3111 (combined temperature ranges, weighted), σc,uw = 2.9013 · 10-1 (combined temperature ranges, unweighted). Coefficient A B C

T = 273.15 to 423.11 K ρ = A + BT + CT 2 + DT 3 + … 1.05018 · 103 -1.94615 · 10-1 -9.78152 · 10-4

cont.

Landolt-Börnstein New Series IV/8E

409

250

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

(1-Methylethenyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp ± 2σ est

T K

−3

kg ⋅ m

282.75 293.15 297.15 273.15 290.55 292.95 288.15 293.15 273.15 293.15 293.15 293.15

-0.45 -1.07 -1.58 -0.94 2.34 -1.42 0.72 -1.07 3.04 3.63 2.43 -0.77

01-gri-2(✕ ) 02-kla(✕ ) 02-kla-2(✕ ) 02-tif-1(✕ ) 10-von/eis1) 10-von/eis(✕ ) 13-kis-2(✕ ) 17-von-1(◆) 27-dan/ven(✕ ) 27-dan/ven1) 27-dan/ven1) 43-ano-3(∆)

T K

293.15 298.15 293.15 298.15 293.15 298.15 293.15 323.14 348.13 373.12 398.12 423.11

ρexp ± 2σ est −3

kg ⋅ m

909.80 ± 2.00 905.60 ± 2.00 910.50 ± 2.00 906.20 ± 2.00 908.80 ± 0.60 907.00 ± 2.00 909.10 ± 0.50 886.60 ± 0.32 863.90 ± 0.35 840.00 ± 0.37 817.50 ± 0.40 793.40 ± 0.42

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.73 0.40 1.43 1.00 -0.27 1.80 0.03 1.45 0.02 -1.39 -0.16 0.68

44-dre-11) 44-dre-1(✕ ) 45-stu1) 45-stu(✕ ) 46-ano(∇) 48-bac/hel(✕ ) 56-sch/cor( ) 97-ste/chi( ) 97-ste/chi( ) 97-ste/chi( ) 97-ste/chi( ) 97-ste/chi( )

{ … … … … …

Not included in Fig. 1.

ρ

ρ

1)

916.50 ± 1.00 908.00 ± 1.00 904.40 ± 2.00 923.10 ± 2.00 913.40 ± 3.00 907.80 ± 1.00 913.60 ± 2.00 908.00 ± 1.00 927.08 ± 3.00 912.70 ± 4.00 911.50 ± 3.00 908.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

cont. Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

251

Further references: [07-tif, 18-ley, 30-sab, 45-bal/mar]. Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ).

ρ ± σ fit kg ⋅ m−3

T K

926.33 ± 2.39 919.00 ± 1.87 911.48 ± 1.45 909.07 ± 1.33 905.20 ± 1.17 903.76 ± 1.11 895.85 ± 0.86

270.00 280.00 290.00 293.15 298.15 300.00 310.00

ρ ± σ fit kg ⋅ m−3

T K

887.74 ± 0.67 879.44 ± 0.55 870.94 ± 0.47 862.24 ± 0.43 853.35 ± 0.41 844.26 ± 0.42 834.98 ± 0.43

320.00 330.00 340.00 350.00 360.00 370.00 380.00

1-Propenylbenzene

T K

[637-50-3]

390.00 400.00 410.00 420.00 430.00

C9H10

ρ ± σ fit kg ⋅ m−3 825.50 ± 0.45 815.83 ± 0.47 805.96 ± 0.50 795.89 ± 0.53 785.63 ± 0.56

MW = 118.18

410

MW = 118.18

411

Table 1. Experimental values with uncertainties

T K 277.15 278.15 283.15 288.15 293.15 298.15 296.15 293.15 273.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

923.0 ± 4.0 922.2 ± 4.0 917.9 ± 4.0 913.5 ± 4.0 909.3 ± 4.0 904.9 ± 4.0 908.9 ± 4.0 913.0 ± 4.0 935.0 ± 4.0 907.0 ± 4.0

1896-per 1896-per 1896-per 1896-per 1896-per 1896-per 05-age 30-les 31-lev/dvo 33-nen/isa

(E)-1-Propenylbenzene

ρexp ± 2σ est

T K

Ref.

kg ⋅ m−3

293.15 293.15 293.15 293.15 273.15 285.15 286.15 293.15 299.15

914.1 ± 4.0 913.0 ± 4.0 911.0 ± 4.0 914.1 ± 4.0 925.3 ± 4.0 918.1 ± 4.0 915.1 ± 4.0 914.1 ± 4.0 908.1 ± 4.0

[873-66-5]

39-bri/ryf 39-lev 58-lev/nic 63-pud/kon 03-kla-3 03-kla-3 03-kla-3 03-kla-3 03-kla-3

C9H10

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.294. Coefficient ρ = A + BT A 1156.09 B -0.850

cont. Landolt-Börnstein New Series IV/8E

252

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

(E)-1-Propenylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 293.15 298.15 293.15 298.15 1)

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

907.2 ± 0.6 906.7 ± 0.6 901.9 ± 2.0 902.0 ± 4.0 915.5 ± 10.0

0.28 -0.22 -0.77 -4.92 12.83

52-ano-5 53-ano-1 53-mix/hec 54-par/wri1) 55-ove/tan1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

909.6 ± 0.4 906.9 ± 0.3 902.7 ± 0.6

(Z)-1-Propenylbenzene

[766-90-5]

C9H10

MW = 118.18

412

Table 1. Experimental and recommended values with uncertainties. T K 293.15 281.15 294.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

908.8 ± 0.6 916.0 ± 2.5 910.4 ± 2.5 909.0 ± 0.6

T K 39-cam/oco 298.15 41-pau1) 293.15 49-lar/jeg1) 293.15 53-ano-1

Ref.

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

910.7 ± 3.0 902.0 ± 4.0 908.9 ± 0.6

53-mix/hec1) 54-par/wri1) Recommended

Not included in calculation of recommended value.

2-Propenylbenzene

[300-57-2]

C9H10

MW = 118.18

413

Table 1. Experimental and recommended values with uncertainties. T K 287.65 291.15 293.65 273.15 293.15 293.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

901.8 ± 3.0 901.2 ± 2.5 892.8 ± 3.0 906.9 ± 4.0 893.0 ± 3.0 893.0 ± 3.0 893.0 ± 3.0

T K 04-bar/gri1) 298.15 04-tif1) 293.15 05-age1) 293.15 05-age1) 293.15 1) 30-les 293.15 30-les-11) 293.15 34-hus/goo1) 293.15

Ref.

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.2 ± 10.0 892.9 ± 3.0 892.3 ± 4.0 896.0 ± 2.0 899.2 ± 2.0 899.0 ± 2.0 898.1 ± 2.1

37-mck/sow1) 39-bri/ryf1) 39-lev1) 44-naz/tsu 58-hil/hay 58-hil/hay Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 1-Butenylbenzene

[824-90-8]

253

C10H12

MW = 132.21

414

C10H12

MW = 132.21

415

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

912.4 ± 4.0

04-kla

(E)-1-Butenylbenzene

[1005-64-7]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.481. Coefficient ρ = A + BT 1150.96 A -0.850 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

286.15 284.15 293.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

906.5 ± 2.0 907.0 ± 2.0 892.7 ± 6.0 901.9 ± 0.5

ρexp − ρcalc Ref. kg ⋅ m−3

-1.24 -2.44 -9.09 0.11

T K

03-kun/sie 29-que-1 34-war/ful1) 46-boo/gre

293.15 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

901.9 ± 0.5 896.5 ± 4.0 907.0 ± 8.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.11 -5.29 9.46

49-boo/hen 49-vor/bro1) 55-ove/tan1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

913.0 ± 1.4 904.5 ± 0.6 901.8 ± 0.5 897.5 ± 0.7

(Z)-1-Butenylbenzene

[1560-09-4]

C10H12

MW = 132.21

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.543. Coefficient ρ = A + BT 1159.32 A -0.850 B

cont. Landolt-Börnstein New Series IV/8E

416

254

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

(Z)-1-Butenylbenzene (cont.)

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

292.15 293.15 273.15 293.15 293.15

ρexp ± 2σ est

ρexp − ρcalc Ref. kg ⋅ m−3

−3

kg ⋅ m

909.7 ± 2.0 910.6 ± 1.0 927.7 ± 1.0 910.0 ± 1.0 909.6 ± 1.0

-1.29 0.46 0.56 -0.14 -0.54

10-von/rot 11-rii 31-lev/dvo 58-lev/nic 63-pud/kon

Table 3. Recommended values. T K 270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

929.8 ± 1.1 921.3 ± 0.7 912.8 ± 0.5 910.1 ± 0.6 905.9 ± 0.7

2-Butenylbenzene

[1560-06-1]

C10H12

MW = 132.21

417

Table 1. Experimental values with uncertainties. T K

293.15 273.15 290.05 292.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

883.1 ± 5.0 899.1 ± 5.0 883.9 ± 5.0 906.9 ± 5.0

11-rii 13-and 19-eyk 23-von/sch

3-Butenylbenzene

ρexp ± 2σ est

T K

Ref.

kg ⋅ m−3

293.15 293.15 293.15 293.15

903.3 ± 5.0 900.6 ± 5.0 885.2 ± 5.0 921.2 ± 5.0

[768-56-9]

37-lev/pet 41-lev/shc 57-kup/dom 60-shi/sev

C10H12

MW = 132.21

418

Table 1. Experimental values with uncertainties. T K

288.65 288.65 287.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

901.5 ± 5.0 901.0 ± 5.0 887.8 ± 5.0 883.1 ± 5.0 906.0 ± 5.0

1872-aro 1874-aro 06-kla-1 11-rii 25-gil/bea-2

T K

293.15 293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.5 ± 5.0 882.2 ± 5.0 881.5 ± 5.0 881.5 ± 5.0

37-lev/pet 46-kar/lam 50-bry/tur 53-tre

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 1,3-Dimethyl-2-ethenylbenzene

[2039-90-9]

255

C10H12

MW = 132.21

419

C10H12

MW = 132.21

420

C10H12

MW = 132.21

421

C10H12

MW = 132.21

422

Table 1. Experimental values with uncertainties. T K 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

907.9 ± 0.6 907.9 ± 0.6

54-sch/cor 56-sch/cor

1,3-Dimethyl-4-ethenylbenzene

[2234-20-0]

Table 1. Experimental and recommended values with uncertainties. T K 294.65 298.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

902.2 ± 3.0 904.0 ± 3.0 905.1 ± 0.5 906.2 ± 1.0 905.3 ± 0.6

03-kla/kei1) 46-mar/sau1) 56-sch/cor 59-sia Recommended

Not included in calculation of recommended value.

1,3-Dimethyl-5-ethenylbenzene

[5379-20-4]

Table 1. Experimental and recommended values with uncertainties. T K

298.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

894.0 ± 3.0 893.5 ± 2.0 895.7 ± 2.0 894.6 ± 2.1

46-mar/sau1) 56-sch/cor 59-sia Recommended

Not included in calculation of recommended value.

1,4-Dimethyl-2-ethenylbenzene

[2039-89-6]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.496. Coefficient ρ = A + BT 1167.41 A -0.900 B

cont.

Landolt-Börnstein New Series IV/8E

256

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

1,4-Dimethyl-2-ethenylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

290.65 298.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. kg ⋅ m−3

907.2 ± 2.0 899.0 ± 1.0 903.3 ± 1.0

1.38 -0.07 -0.27

03-kla/kei 46-mar/sau 56-sch/cor

Table 3. Recommended values. T K

290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

906.4 ± 1.2 903.6 ± 0.8 899.1 ± 0.8

3,4-Dimethyl-1-ethenylbenzene

[27831-13-6]

C10H12

MW = 132.21

423

C10H12

MW = 132.21

424

Table 1. Experimental and recommended values with uncertainties. T K 298.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

906.0 ± 3.0 906.0 ± 2.0 908.0 ± 1.0 907.6 ± 1.1

46-mar/sau1) 58-ria/vai 59-sia Recommended

Not included in calculation of recommended value.

1-Ethenyl-2-ethylbenzene

[7564-63-8]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.085. Coefficient ρ = A + BT 1155.00 A -0.850 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

295.15 293.15 298.15 1)

ρexp ± 2σ est −3

kg ⋅ m

911.9 ± 6.0 905.7 ± 0.6 901.7 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

7.78 -0.08 0.09

36-fri/bes1) 49-dre/mar 49-dre/mar

Not included in calculation of linear coefficients.

cont.

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

257

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

908.5 ± 0.5 905.8 ± 0.4 901.6 ± 0.4

290.00 293.15 298.15

1-Ethenyl-3-ethylbenzene

[7525-62-4]

C10H12

MW = 132.21

425

C10H12

MW = 132.21

426

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.105. Coefficient ρ = A + BT 1143.75 A -0.850 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

ρexp − ρcalc Ref. kg ⋅ m−3

894.5 ± 0.6 890.4 ± 0.6 899.7 ± 4.0

-0.10 0.11 5.13

49-dre/mar 49-dre/mar 63-pud/kon1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

897.3 ± 0.5 894.6 ± 0.5 890.3 ± 0.5

1-Ethenyl-4-ethylbenzene

[3454-07-7]

Table 1. Fit with estimated B coefficient for 5 accepted points. Deviation σw = 0.432. Coefficient ρ = A + BT 1141.84 A -0.850 B

cont. Landolt-Börnstein New Series IV/8E

258

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

1-Ethenyl-4-ethylbenzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

286.15 288.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

907.4 ± 8.0 895.3 ± 2.0 890.1 ± 3.0 892.5 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

8.79 -1.61 1.69 -0.19

T K

02-kla1) 03-kla/kei 35-ott/wen1) 49-dre/mar

298.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

888.4 ± 0.6 893.5 ± 1.0 892.7 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.02 0.84 0.04

49-dre/mar 58-ria/vai 59-sia

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

903.8 ± 1.5 895.3 ± 0.6 892.7 ± 0.5 888.4 ± 0.5

(1-Methylenepropyl)benzene

[2039-93-2]

C10H12

MW = 132.21

427

C10H12

MW = 132.21

428

Table 1. Experimental and recommended values with uncertainties. T K 293.15 298.15 298.15 298.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

906.3 ± 10.0 890.0 ± 2.0 888.0 ± 2.0 898.4 ± 10.0 886.8 ± 0.5 887.0 ± 0.6

41-nes/pec-11) 48-bac/hel 48-bac/hel 52-cra1) 55-ove/tan Recommended

Not included in calculation of recommended value.

Methyl(1-methylethenyl)benzene

[26444-18-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

857.5 ± 3.0

35-mal

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 1-Methyl-2-(1-methylethenyl)benzene

[7399-49-7]

259

C10H12

MW = 132.21

429

C10H12

MW = 132.21

430

C10H12

MW = 132.21

431

Table 1. Experimental and recommended values with uncertainties. T K

288.15 288.15 298.95 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

918.0 ± 10.0 918.1 ± 10.0 873.9 ± 10.0 889.3 ± 0.6 889.3 ± 0.6

13-sab/mur-11) 15-sab/mur1) 36-ber/wei-11) 52-ano-5 Recommended

Not included in calculation of recommended value.

1-Methyl-3-(1-methylethenyl)benzene

[1124-20-5]

Table 1. Experimental and recommended values with uncertainties. T K 273.15 295.15 295.15 295.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

911.5 ± 6.0 903.4 ± 0.6 903.4 ± 0.6 903.4 ± 0.6

07-tif1) 13-sab/mur-1 15-sab/mur Recommended

Not included in calculation of recommended value.

1-Methyl-4-(1-methylethenyl)benzene

[1195-32-0]

Table 1. Fit with estimated B coefficient for 8 accepted points. Deviation σw = 1.520. Coefficient ρ = A + BT 1131.87 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 296.15 291.65 291.85 273.15 289.15 273.15 1)

ρexp ± 2σ est −3

kg ⋅ m

912.2 ± 2.0 893.6 ± 2.0 902.4 ± 3.0 902.2 ± 3.0 912.0 ± 2.0 907.3 ± 10.0 911.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-1.15 -1.35 3.85 3.81 -1.35 6.75 -1.45

07-tif 10-gri 12-von-11) 12-von-11) 13-sab/mur-1 13-sab/mur-11) 15-sab/mur

T K

289.15 293.15 298.15 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

907.2 ± 10.0 899.6 ± 2.0 895.0 ± 2.0 905.0 ± 5.0 896.9 ± 2.0 899.2 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

6.65 2.25 1.65 7.65 -0.45 1.85

15-sab/mur1) 43-bal/mar 48-bac/hel 61-bor/zac1) 61-tom/zac 61-tom/zac-1

Not included in calculation of linear coefficients.

cont. Landolt-Börnstein New Series IV/8E

260

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

1-Methyl-4-(1-methylethenyl)benzene (cont.) Table 3. Recommended values. T K 270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

915.9 ± 2.3 907.9 ± 1.7 899.9 ± 1.6 897.3 ± 1.7 893.3 ± 1.9

(1-Methyl-1-propenyl)benzene

[2082-61-3]

C10H12

MW = 132.21

432

MW = 132.21

433

Table 1. Experimental values with uncertainties. T K 288.15 295.15 292.85 292.85

ρexp ± 2σ est

Ref.

kg ⋅ m−3

922.1 ± 4.0 909.0 ± 4.0 909.5 ± 4.0 908.8 ± 4.0

02-kla-1 02-kla-2 10-von/eis 10-von/eis

ρexp ± 2σ est T K kg ⋅ m−3 298.15 891.1 ± 4.0 293.15 909.0 ± 4.0 293.15 904.1 ± 4.0

Ref.

[768-00-3]

C10H12

(E)-(1-Methyl-1-propenyl)benzene

18-hal/bau 18-von-2 39-kaz/tat-1

Table 1. Experimental and recommended values with uncertainties. T K 293.15 293.15 298.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

917.8 ± 0.6 917.8 ± 0.6 979.9 ± 20.0 917.8 ± 0.6

ρexp ± 2σ est T K kg ⋅ m−3 45-boo/gre 293.15 919.9 ± 1.5 45-gre/waa 298.15 919.1 ± 5.0 49-cra1) 298.15 917.9 ± 0.6 52-ano-5

Ref.

Ref. 52-ano-6 52-cra1) Recommended

Not included in calculation of recommended value.

(Z)-(1-Methyl-1-propenyl)-benzene

[767-99-7]

C10H12

MW = 132.21

434

Table 1. Experimental and recommended values with uncertainties. T K 298.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

919.1 ± 20.0 891.8 ± 2.0 891.8 ± 2.0

49-cra1) 52-cra Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 (R)-(1-Methyl-2-propenyl)benzene

[36617-88-6]

261

C10H12

MW = 132.21

435

C10H12

MW = 132.21

436

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

879.2 ± 2.0

52-cra

1-Methyl-2-(2-propenyl)benzene

[1587-04-8]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 2.7992 · 10-1 (combined temperature ranges, weighted), σc,uw = 1.6161 · 10-1 (combined temperature ranges, unweighted). T = 280.15 to 308.15 K ρ = A + BT + CT 2 + DT 3 + … 1.13060 · 103 -7.84734 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

280.15 297.65

ρexp ± 2σ est −3

kg ⋅ m

911.00 ± 1.00 897.00 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.25 -0.02

… …

34-hur/bol( ) 34-hur/bol( )

T K

308.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

889.00 ± 1.00 900.10 ± 1.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.22 -0.45

…

34-hur/bol( ) 37-lev/gri(∇)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

280.00 290.00 293.15

ρ ± σ fit kg ⋅ m−3 910.87 ± 1.24 903.02 ± 1.03 900.55 ± 1.00

T K

298.15 300.00 310.00

ρ ± σ fit kg ⋅ m−3 896.63 ± 1.01 895.17 ± 1.03 887.33 ± 1.25

T K

320.00

ρ ± σ fit kg ⋅ m−3 879.48 ± 1.61

cont.

Landolt-Börnstein New Series IV/8E

262

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

ρ

ρ

1-Methyl-2-(2-propenyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(Z)-1-Methyl-2-(1-propenyl)benzene

[2077-33-0]

C10H12

MW = 132.21

437

C10H12

MW = 132.21

438

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

901.7 ± 1.0

37-lev/gri

(Z)-1-Methyl-3-(1-propenyl)benzene

[2077-31-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

895.4 ± 1.0

37-lev/gri

Landolt-Börnstein New Series IV/8E

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10 (Z)-1-Methyl-4-(1-propenyl)-benzene

[2077-29-4]

263

C10H12

MW = 132.21

439

C10H12

MW = 132.21

440

C10H12

MW = 132.21

441

Table 1. Experimental and recommended values with uncertainties. T K

287.15 286.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

988.0 ± 50.0 905.7 ± 4.0 889.6 ± 4.0 905.9 ± 0.6 905.9 ± 0.6

02-kla1) 03-kun1) 37-lev1) 52-ano-5 Recommended

Not included in calculation of recommended value.

1-Methyl-3-(2-propenyl)-benzene

[3333-20-8]

Table 1. Experimental and recommended values with uncertainties. T K

295.15 295.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

903.4 ± 6.0 903.4 ± 6.0 891.0 ± 3.0 891.0 ± 3.0

13-sab/mur-11) 15-sab/mur1) 37-lev/gri Recommended

Not included in calculation of recommended value.

1-Methyl-4-(2-propenyl)-benzene

[3333-13-9]

Table 1. Experimental and recommended values with uncertainties. T K

273.15 289.15 293.15 293.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

912.0 ± 10.0 901.3 ± 10.0 883.0 ± 3.0 879.9 ± 0.6 879.9 ± 0.6 879.9 ± 0.6

13-sab/mur-11) 13-sab/mur-11) 37-lev/gri1) 46-boo/gre 49-boo/hen Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

264

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

(2-Methyl-1-propenyl)benzene

[768-49-0]

C10H12

MW = 132.21

442

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.0733 (combined temperature ranges, weighted), σc,uw = 4.3071 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 298.15 K ρ = A + BT + CT 2 + DT 3 + … 1.16335 · 103 -8.94584 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

277.15 278.15 283.15 288.15 293.15 298.15 287.65

ρexp ± 2σ est kg ⋅ m

−3

916.30 ± 2.00 915.40 ± 2.00 911.30 ± 2.00 907.30 ± 2.00 903.20 ± 2.00 898.70 ± 2.00 902.20 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.89 0.88 1.25 1.73 2.10 2.07 -3.82

1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per(✕ ) 1896-per1) 1896-per(✕ ) 04-kla-1(✕ )

T K

273.15 293.15 293.15 293.15 293.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m

−3

917.20 ± 2.00 900.50 ± 1.00 900.50 ± 1.00 901.10 ± 0.50 901.10 ± 0.50 901.10 ± 0.50 901.10 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-1.79 -0.60 -0.60 -0.00 -0.00 -0.00 -0.00

07-tif-2(✕ ) 10-kis(✕ ) 12-kiz(◆) 44-boo/per( ) 46-boo/gre( ) 49-boo/hen(∇) 52-ano-5(∆)

… {

Further references: [10-von/eis, 46-bue/kar, 49-vor/bro-1, 52-kaz/gru, 54-par/wri, 55-she/wri, 59mas/def].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00

ρ ± σ fit kg ⋅ m−3 921.81 ± 2.52 912.86 ± 1.87 903.92 ± 1.28

T K

293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 901.10 ± 1.11 896.63 ± 0.91 894.97 ± 0.86

T K

310.00

ρ ± σ fit kg ⋅ m−3 886.03 ± 0.90

cont.

Landolt-Börnstein New Series IV/8E

265

ρ

ρ

3.1 Alkenylbenzenes (CnH2n-8), C8 - C10

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(2-Methyl-2-propenyl)benzene

[3290-53-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

882.1 ± 0.5

Landolt-Börnstein New Series IV/8E

46-bue/kar

C10H12

MW = 132.21

443

Empty page 266

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

267

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 1-(1-Butenyl)-3-methylbenzene

[500034-04-8]

C11H14

MW = 146.23

444

C11H14

MW = 146.23

445

C11H14

MW = 146.23

446

C11H14

MW = 146.23

447

C11H14

MW = 146.23

448

Table 1. Experimental value with uncertainty. T K

291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.1 ± 2.0

10-gri

1-(1-Butenyl)-4-methylbenzene

[500034-05-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.3 ± 2.0

03-kun

1,2-Dimethyl-3-(1-methylethenyl)benzene

[500010-80-0]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.0 ± 2.0

48-bac/hel

1,2-Dimethyl-4-(1-methylethenyl)benzene

[18908-16-2]

Table 1. Experimental values with uncertainties. T K 298.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

906.0 ± 3.0 933.0 ± 3.0

48-bac/hel 60-lap/ryb

1,3-Dimethyl-4-(1-methylethenyl)benzene

[500027-37-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.5 ± 5.0

Landolt-Börnstein New Series IV/8E

59-her/kna

268

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

2,5-Dimethyl-1-(1-methylethenyl)benzene

[500027-42-9]

C11H14

MW = 146.23

449

C11H14

MW = 146.23

450

C11H14

MW = 146.23

451

C11H14

MW = 146.23

452

C11H14

MW = 146.23

453

Table 1. Experimental values with uncertainties. T K

293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.5 ± 5.0 906.7 ± 4.0

59-her/kna 60-lap/ryb

(1,1-Dimethyl-1-propenyl)benzene

[500034-63-9]

Table 1. Experimental value with uncertainty. T K 292.95

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

897.0 ± 2.0

10-von/eis

(1,1-Dimethyl-2-propenyl)benzene

[18321-36-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.3 ± 0.5

52-ano-6

(1,2-Dimethyl-1-propenyl)benzene

[769-57-3]

Table 1. Experimental values with uncertainties. T K 293.15 279.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.7 ± 3.0 908.0 ± 3.0 900.0 ± 3.0

13-lep 13-lep 64-iof/sto

1,2-Dimethyl-4-(1-propenyl)benzene

[500034-06-0]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

915.1 ± 2.0

03-kun

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 1,3-Dimethyl-4-(1-propenyl)benzene

[500034-07-1]

269

C11H14

MW = 146.23

454

C11H14

MW = 146.23

455

C11H14

MW = 146.23

456

C11H14

MW = 146.23

457

C11H14

MW = 146.23

458

Table 1. Experimental values with uncertainties. T K 286.15 290.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

903.0 ± 6.0 909.6 ± 2.0

12-kun 29-ber/ang

1,4-Dimethyl-2-(1-propenyl)benzene

[41965-20-2]

Table 1. Experimental value with uncertainty. T K 295.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

925.9 ± 2.0

12-kun

1-Ethenyl-4-(1-methylethyl)benzene

[2055-40-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

894.0 ± 1.0

59-sia

1-Ethenyl-2,4,5-trimethylbenzene

[3937-24-4]

Table 1. Experimental values with uncertainties. T K

290.15 289.65

ρexp ± 2σ est

Ref.

kg ⋅ m−3

913.7 ± 2.0 916.0 ± 2.0

03-kla/kei 49-buc/col

1-Ethenyl-2,4,6-trimethylbenzene

[769-25-5]

Table 1. Fit with estimated B coefficient for 4 accepted points. Deviation σw = 0.584. Coefficient ρ = A + BT 1146.38 A -0.820 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 290.65 294.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

905.7 ± 2.0 907.3 ± 2.0 906.0 ± 2.0 906.2 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.29 -0.74 0.83 0.21

02-kla 03-kla/kei 49-buc/col 62-lev/kos cont.

Landolt-Börnstein New Series IV/8E

270

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

1-Ethenyl-2,4,6-trimethylbenzene (cont.) Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

908.6 ± 1.3 906.0 ± 1.1 901.9 ± 1.3

1-Ethyl-4-(1-methylethenyl)benzene

[13045-22-2]

C11H14

MW = 146.23

459

C11H14

MW = 146.23

460

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

894.0 ± 2.0

59-her/kna

(1-Ethyl-1-propenyl)benzene

[4701-36-4]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 1.500. Coefficient ρ = A + BT 1174.24 A -0.900 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

287.15 294.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

917.3 ± 2.0 908.0 ± 2.0 867.4 ± 20.0

ρexp − ρcalc Ref. kg ⋅ m−3

1.50 -1.50 -43.00

03-kla-1 39-gui 60-vdo/kha1)

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K

280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

922.2 ± 1.8 913.2 ± 1.5 910.4 ± 1.5 905.9 ± 1.7

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 (1-Ethyl-2-propenyl)benzene

[19947-22-9]

271

C11H14

MW = 146.23

461

C11H14

MW = 146.23

462

C11H14

MW = 146.23

463

C11H14

MW = 146.23

464

Table 1. Experimental and recommended values with uncertainties. T K

296.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

845.8 ± 30.0 880.1 ± 0.6 880.1 ± 0.6

1883-daf-31) 52-ano-6 Recommended

Not included in calculation of recommended value.

1-Ethyl-4-(1-propenyl)benzene

[74532-89-1]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

907.2 ± 2.0

03-kun

(1-Methylenebutyl)benzene

[5676-32-4]

Table 1. Experimental and recommended values with uncertainties. T K

273.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

913.8 ± 6.0 904.2 ± 2.0 904.2 ± 2.0

07-tif-21) 55-ove/tan Recommended

Not included in calculation of recommended value.

(1-Methyl-1-butenyl)benzene

[53172-84-2]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.627. Coefficient ρ = A + BT 1163.62 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

294.35 299.65 273.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

897.6 ± 2.0 895.0 ± 2.0 932.1 ± 10.0 899.8 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-1.11 1.06 14.31 0.01

02-kla-1 02-kla-2 07-tif-21) 64-iof/sto

Not included in calculation of linear coefficients.

cont. Landolt-Börnstein New Series IV/8E

272

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

(1-Methyl-1-butenyl)benzene (cont.) Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

902.6 ± 1.3 899.8 ± 0.9 895.3 ± 1.0

(2-Methyl-1-butenyl)benzene

[56253-64-6]

C11H14

MW = 146.23

465

C11H14

MW = 146.23

466

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

899.6 ± 2.0

64-iof/sto

(3-Methyl-1-butenyl)benzene

[1608-28-2]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.850. Coefficient ρ = A + BT 1138.47 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

289.15 287.15 287.75 287.55 273.15 293.15 1)

ρexp ± 2σ est −3

kg ⋅ m

878.0 ± 20.0 887.0 ± 10.0 890.3 ± 10.0 887.0 ± 10.0 919.1 ± 2.0 904.8 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-29.15 -21.75 -17.97 -21.43 -0.85 0.85

1883-sch-21) 04-kun/sta1) 10-von/eis1) 10-von/eis1) 31-lev/dvo 63-pud/kon

Not included in calculation of linear coefficients.

Table 3. Recommended values. T K 270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

922.5 ± 2.0 914.5 ± 1.5 906.5 ± 1.7 903.9 ± 1.9 899.9 ± 2.1

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 (3-Methyl-2-butenyl)benzene

[4489-84-3]

273

C11H14

MW = 146.23

467

C11H14

MW = 146.23

468

C11H14

MW = 146.23

469

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.422. Coefficient ρ = A + BT A 1153.79 B -0.900 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

291.45 288.15 288.15

ρexp ± 2σ est kg ⋅ m−3

891.0 ± 2.0 894.4 ± 2.0 895.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.49 -0.06 0.54

04-kla 06-kla-1 22-cla/kre

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

901.8 ± 2.1 892.8 ± 1.4 890.0 ± 1.6 885.5 ± 2.0

(3-Methyl-3-butenyl)benzene

[6683-51-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

885.5 ± 1.0

66-nik/vor

1-Methyl-4-(1-methylenepropyl)benzene [21758-18-9] Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 1.128. Coefficient ρ = A + BT A 1157.18 B -0.900 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

295.65 298.15

ρexp ± 2σ est kg ⋅ m−3

892.6 ± 2.0 888.0 ± 1.5

ρexp − ρcalc Ref. kg ⋅ m−3

1.50 -0.85

10-gri 48-bac/hel cont.

Landolt-Börnstein New Series IV/8E

274

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

1-Methyl-4-(1-methylenepropyl)benzene (cont.) Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

896.2 ± 1.7 893.3 ± 1.5 888.8 ± 1.5

(2-Methyl-1-methylenepropyl)benzene

[17498-71-4]

C11H14

MW = 146.23

470

C11H14

MW = 146.23

471

C11H14

MW = 146.23

472

C11H14

MW = 146.23

473

Table 1. Experimental values with uncertainties. T K

286.25 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

899.1 ± 3.0 895.4 ± 2.0

03-kla-1 55-ove/tan

1-Pentenylbenzene

[826-18-6]

Table 1. Experimental values with uncertainties. T K 288.15 293.15 290.15 273.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

892.0 ± 5.0 878.2 ± 5.0 892.4 ± 5.0 935.0 ± 5.0 874.0 ± 5.0

06-kla-1 18-von/koh 30-pre/dau 31-lev/dvo 57-tru/hol

2-Pentenylbenzene

[27911-12-2]

Table 1. Experimental values with uncertainties. T K

289.35 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.4 ± 3.0 883.7 ± 3.0

10-von/rot 06-kla-1

(E)-3-Pentenylbenzene

[16091-23-9]

Table 1. Experimental value with uncertainty. T K 294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

874.0 ± 2.0

43-arb/kuz-1

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 4-Pentenylbenzene

[1075-74-7]

275

C11H14

MW = 146.23

474

C12H16

MW = 160.26

475

C12H16

MW = 160.26

476

C12H16

MW = 160.26

477

C12H16

MW = 160.26

478

C12H16

MW = 160.26

479

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.9 ± 2.0

12-von/deu

1-(1-Butenyl)-2,4-dimethylbenzene

[500034-13-9]

Table 1. Experimental values with uncertainties. T K

292.15 291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.7 ± 2.0 896.7 ± 2.0

02-kla 12-kun-1

1-(1-Butenyl)-3,4-dimethylbenzene

[142062-13-3]

Table 1. Experimental value with uncertainty. T K 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

911.4 ± 2.0

12-kun-1

1-(1-Butenyl)-4-ethylbenzene

[500034-12-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

907.4 ± 2.0

12-kun-1

1-Butyl-4-ethenylbenzene

[26206-42-8]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

976.8 ± 0.7

53-ove/fra

1,4-Diethyl-2-ethenylbenzene

[2715-29-9]

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

891.5 ± 2.0

Landolt-Börnstein New Series IV/8E

03-kla/kei

276

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

(1,1-Dimethyl-3-butenyl)benzene

[66622-39-7]

C12H16

MW = 160.26

480

C12H16

MW = 160.26

481

C12H16

MW = 160.26

482

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.0 ± 2.0

48-col/gar

(1,2-Dimethyl-1-butenyl)benzene

[61777-06-8]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 1.076. Coefficient ρ = A + BT 1135.34 A -0.850 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 287.85 293.15

ρexp ± 2σ est −3

kg ⋅ m

902.0 ± 2.0 892.1 ± 2.0 885.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-1.16 1.43 -0.27

35-fav/tik 35-fav/tik 35-fav/tik

Table 3. Recommended values. T K 270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

905.8 ± 1.8 897.3 ± 1.2 888.8 ± 1.2 886.2 ± 1.4 881.9 ± 1.7

(1,3-Dimethyl-1-butenyl)benzene

[20247-87-4]

Table 1. Experimental values with uncertainties. T K

288.15 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

894.8 ± 5.0 909.0 ± 6.0

04-kla 09-bod/tab-1

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 (1,3-Dimethyl-2-butenyl)benzene

[50704-01-3]

277

C12H16

MW = 160.26

483

C12H16

MW = 160.26

484

C12H16

MW = 160.26

485

C12H16

MW = 160.26

486

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.1 ± 2.0

04-kla

(2,3-Dimethyl-1-butenyl)benzene

[500034-10-6]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.9 ± 2.0

13-ram

(2,3-Dimethyl-2-butenyl)benzene

[500034-09-3]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.000. Coefficient ρ = A + BT 1161.54 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 293.15 293.15

ρexp ± 2σ est kg ⋅ m−3

902.2 ± 1.0 897.7 ± 1.0 897.7 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

-0.00 -0.00 -0.00

22-cla/kre 39-cli 41-gib

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

909.5 ± 1.0 900.5 ± 1.0 897.7 ± 1.0 893.2 ± 1.0

1-(1,1-Dimethylethyl)-3-ethenylbenzene

[19789-36-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

897.0 ± 1.5

Landolt-Börnstein New Series IV/8E

46-mar/all

278

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

1,2-Dimethyl-4-(1-methyl-1-propenyl)benzene

[180963-06-8]

C12H16

MW = 160.26

487

C12H16

MW = 160.26

488

C12H16

MW = 160.26

489

Table 1. Experimental value with uncertainty. T K

289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.0 ± 2.0

37-fav/zak

1,3-Dimethyl-4-(2-methyl-1-propenyl)benzene

[500034-15-1]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 2.500. Coefficient ρ = A + BT 1186.65 A -1.000 B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

298.15 273.15

ρexp ± 2σ est −3

kg ⋅ m

886.0 ± 3.0 916.0 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

-2.50 2.50

36-har-2 36-har-2

Table 3. Recommended values. T K

270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

916.7 ± 3.5 906.7 ± 3.5 896.7 ± 3.5 893.5 ± 3.5 888.5 ± 3.5

1,3-Dimethyl-5-(1-methyl-1-propenyl)benzene

[500034-14-0]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

892.00 ± 2.0

30-tis

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 (1-Ethenylbutyl)benzene

[500036-33-9]

279

C12H16

MW = 160.26

490

C12H16

MW = 160.26

491

C12H16

MW = 160.26

492

C12H16

MW = 160.26

493

C12H16

MW = 160.26

494

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

876.9 ± 0.5

52-ano-6

1-Ethenyl-3-(1-methylpropyl)benzene

[500011-17-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.9 ± 0.7

46-mar/all

(2-Ethyl-1-butenyl)benzene

[33143-15-6]

Table 1. Experimental and recommended values with uncertainties. T K

291.65 291.15 291.15 291.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

903.8 ± 2.0 904.0 ± 1.0 903.8 ± 1.0 903.9 ± 1.0

04-kla-21) 10-von/eis 31-lev/tab Recommended

Not included in calculation of recommended value.

(1-Ethyl-1-methyl-2-propenyl)benzene

[51752-50-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

896.6 ± 0.4

52-ano-6

(1-Ethyl-2-methyl-1-propenyl)benzene

[104851-42-5]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.000. Coefficient ρ = A + BT 1150.18 A -0.900 B

cont.

Landolt-Börnstein New Series IV/8E

280

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

(1-Ethyl-2-methyl-1-propenyl)benzene (cont.) Table 2. Experimental values with uncertainties and deviation from calculated values. T K

287.65 290.65

ρexp ± 2σ est −3

kg ⋅ m

891.3 ± 1.0 888.6 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.00 0.00

04-kla-2 10-von/eis

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

898.2 ± 1.0 889.2 ± 1.0 886.3 ± 1.0 881.8 ± 1.0

1-Hexenylbenzene

[828-15-9]

C12H16

MW = 160.26

495

C12H16

MW = 160.26

496

C12H16

MW = 160.26

497

C12H16

MW = 160.26

498

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

945.5 ± 2.0

27-mar/hag

2-Hexenylbenzene

[500034-08-2]

Table 1. Experimental value with uncertainty. T K

289.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

889.8 ± 2.0

07-kla-1

5-Hexenylbenzene

[1588-44-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.9 ± 2.0

12-von/deu

1-(1-Methylethenyl)-4-(1-methylethyl)benzene

[2388-14-9]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

887.0 ± 3.0

48-bac/hel

Landolt-Börnstein New Series IV/8E

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12 1-(1-Methylethenyl)-2,4,6trimethylbenzene

[14679-13-1]

281

C12H16

MW = 160.26

499

C12H16

MW = 160.26

500

C12H16

MW = 160.26

501

C12H16

MW = 160.26

502

C12H16

MW = 160.26

503

C12H16

MW = 160.26

504

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

909.6 ± 1.0

62-lev/kos

1-(1-Methylethyl)-4-(1-propenyl)benzene

[27319-06-8]

Table 1. Experimental value with uncertainty. T K

295.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

930.8 ± 2.0

03-kun

1-Methyl-4-(1-methyl-2-butenyl)benzene [14979-71-6] Table 1. Experimental value with uncertainty. T K

273.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.4 ± 1.0

66-yan/vdo

1-Methyl-4-(3-methyl-1-butenyl)benzene [32094-37-4] Table 1. Experimental value with uncertainty. T K

291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

885.0 ± 2.0

04-kun/sta

1-Methyl-4-(1-methylene2-methylpropyl)benzene

[500034-11-7]

Table 1. Experimental value with uncertainty. T K

300.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.8 ± 2.0

10-gri

(2-Methyl-1-pentenyl)benzene

[123762-55-0]

Table 1. Experimental value with uncertainty. T K 273.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

992.6 ± 2.0

Landolt-Börnstein New Series IV/8E

31-lev/tab

282

3.2 Alkenylbenzenes (CnH2n-8), C11 - C12

(3-Methyl-1-pentenyl)benzene

[15314-17-7]

C12H16

MW = 160.26

505

[75593-28-1]

C12H16

MW = 160.26

506

[6683-49-4]

C12H16

MW = 160.26

507

C12H16

MW = 160.26

508

C12H16

MW = 160.26

509

Table 1. Experimental values with uncertainties. T K 285.15 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

914.6 ± 6.0 890.6 ± 6.0

04-kla/sau 10-von/eis

(3-Methyl-2-pentenyl)benzene Table 1. Experimental and recommended values with uncertainties. T K 291.15 291.15 291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

900.4 ± 2.0 901.4 ± 2.0 900.9 ± 2.0

04-kla 06-kla-1 Recommended

(4-Methyl-4-pentenyl)benzene

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

880.7 ± 1.0

66-nik/vor

1-(1-Propenyl)-2,4,6-trimethylbenzene

[500034-16-2]

Table 1. Experimental values with uncertainties. T K

290.65 294.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

900.3 ± 2.0 898.8 ± 2.0

02-kla 04-kla-3

1-(2-Propenyl)-2,4,6-trimethylbenzene

[4810-05-3]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

898.9 ± 1.0

56-lib/pry

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

283

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 1-(1-Butenyl)-4-(1-methylethyl)benzene

[500034-24-2]

C13H18

MW = 174.29

510

C13H18

MW = 174.29

511

C13H18

MW = 174.29

512

C13H18

MW = 174.29

513

C13H18

MW = 174.29

514

Table 1. Experimental value with uncertainty. T K

287.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.2 ± 2.0

12-kun-1

1-(1-Butenyl)-2,4,6-trimethylbenzene

[500034-27-5]

Table 1. Experimental value with uncertainty. T K 287.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.3 ± 2.0

02-kla

(1,1-Diethyl-2-propenyl)benzene

[19781-34-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

903.0 ± 0.6

52-ano-6

1-(1,3-Dimethyl-3-butenyl)4-methylbenzene

[500011-00-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.5 ± 0.7

50-pin/str-1

[1-(1,1-Dimethylethyl)-1-propenyl]benzene

[500034-23-1]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

906.4 ± 2.0

Landolt-Börnstein New Series IV/8E

13-ram

284

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

1,2-Dimethyl-4-(1-methyl-2-butenyl)benzene

[14979-72-7]

C13H18

MW = 174.29

515

C13H18

MW = 174.29

516

C13H18

MW = 174.29

517

C13H18

MW = 174.29

518

C13H18

MW = 174.29

519

C13H18

MW = 174.29

520

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

892.5 ± 1.0

66-yan/vdo

1,3-Dimethyl-4-(1-methyl-2-butenyl)benzene

[14979-73-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.6 ± 1.0

66-yan/vdo

1,4-Dimethyl-5-(1-methyl-2-butenyl)benzene

[14803-53-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.2 ± 1.0

66-yan/vdo

(1,3-Dimethyl-1-pentenyl)benzene

[500034-20-8]

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

883.9 ± 2.0

30-dav/dix

(1,4-Dimethyl-1-pentenyl)benzene

[500034-21-9]

Table 1. Experimental value with uncertainty. T K 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

881.4 ± 2.0

02-kla-1

(1-Ethyl-2-methyl-2-butenyl)benzene

[500034-22-0]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.270. Coefficient ρ = A + BT 1135.01 A -0.850 B cont. Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

285

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 286.75

ρexp ± 2σ est −3

kg ⋅ m

886.1 ± 2.0 891.0 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.27 -0.27

36-fav/tik 36-fav/tik

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

897.0 ± 2.0 888.5 ± 2.0 885.8 ± 2.0 881.6 ± 2.0

(2-Methyl-1-hexenyl)benzene

[500034-17-3]

C13H18

MW = 174.29

521

C13H18

MW = 174.29

522

C13H18

MW = 174.29

523

C13H18

MW = 174.29

524

Table 1. Experimental value with uncertainty. T K

290.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

897.4 ± 2.0

21-rei/van

(2-Methyl-3-hexenyl)benzene

[500034-18-4]

Table 1. Experimental value with uncertainty. T K

294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.0 ± 2.0

43-arb/kuz-1

1-Methyl-2-(1-methylethenyl)4-(1-methylethyl)benzene

[38031-45-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

885.6 ± 1.0

48-pin/wei

1-Methyl-4-(1-methylethyl)3-(1-propenyl)benzene

[500034-25-3]

Table 1. Experimental values with uncertainties. T K

291.15 292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.9 ± 2.0 889.9 ± 2.0

Landolt-Börnstein New Series IV/8E

03-kun 12-kun

286

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

1-Methyl-4-(4-methyl-4-pentenyl)benzene

[74672-08-5]

C13H18

MW = 174.29

525

C13H18

MW = 174.29

526

C13H18

MW = 174.29

527

C13H18

MW = 174.29

528

C13H18

MW = 174.29

529

C13H18

MW = 174.29

530

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

878.5 ± 1.0

50-pin/str

1-(1-Methyl-1-propenyl)-2,3,5trimethylbenzene

[500034-28-6]

Table 1. Experimental value with uncertainty. T K 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

899.2 ± 2.0

02-kla-1

1-(2-Methyl-1-propenyl)-2,4,6trimethylbenzene

[500034-26-4]

Table 1. Experimental value with uncertainty. T K 291.95

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.0 ± 2.0

04-kla-3

1-(2-Methyl-2-propenyl)-2,4,5trimethylbenzene

[500036-29-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

863.0 ± 2.0

55-kor/mat

(1-Ethyl-2-methyl-1-propenyl)benzene

[500034-19-5]

Table 1. Experimental value with uncertainty. T K

289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.7 ± 2.0

04-kla-2

(1-Propyl-1-butenyl)benzene

[55878-04-1]

Table 1. Experimental value with uncertainty. T K 288.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

885.5 ± 2.0

12-mur/amo

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 (1,1,3-Trimethyl-2-butenyl)benzene

[92104-77-3]

287

C13H18

MW = 174.29

531

C14H20

MW = 188.31

532

C14H20

MW = 188.31

533

C14H20

MW = 188.31

534

C14H20

MW = 188.31

535

C14H20

MW = 188.31

536

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

876.0 ± 1.0

48-lev/fai

1-(1-Butenyl)-5-methyl-2(1-methylethyl)benzene

[500034-31-1]

Table 1. Experimental value with uncertainty. T K

287.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

935.3 ± 2.0

12-kun-1

(2-Butyl-3-butenyl)benzene

[500036-39-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.9 ± 1.0

50-zie/eim

1,3-Dimethyl-5-(1,1-dimethylethyl)2-ethenylbenzene

[500036-23-7]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

893.2 ± 1.0

54-sch-1

1,3-Dimethyl-4-(2-ethyl-1-butenyl)benzene

[500034-30-0]

Table 1. Experimental values with uncertainties. T K 273.15 283.15 301.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

927.0 ± 3.0 914.0 ± 3.0 887.0 ± 3.0

36-har-2 36-har-2 36-har-2

2-(1,1-Dimethylethyl)-3-methyl4-(1-methylethenyl)benzene

[500036-31-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

882.5 ± 1.0

Landolt-Börnstein New Series IV/8E

55-sch-1

288

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

(1-Ethenylhexyl)benzene

[500036-30-6]

C14H20

MW = 188.31

537

C14H20

MW = 188.31

538

C14H20

MW = 188.31

539

C14H20

MW = 188.31

540

C14H20

MW = 188.31

541

C 14H20

MW = 188.31

542

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

866.7 ± 1.0

56-mix/you

1-Ethenyl-4-hexylbenzene

[10074-43-8]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

874.2 ± 0.7

53-ove/fra

1-(1-Methyl-2-butenyl)-2,4,6trimethylbenzene

[14979-74-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

899.6 ± 1.0

66-yan/vdo

(1-Methyl-1-heptenyl)benzene

[14673-22-4]

Table 1. Experimental value with uncertainty. T K

290.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

879.9 ± 2.0

39-pet/bai

[2-Methyl-1-(1-methylethyl)2-propenyl)]benzene

[500034-29-7]

Table 1. Experimental value with uncertainty. T K 292.85

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.2 ± 2.0

34-zie/der

1-Octenylbenzene

[29518-72-7]

Table 1. Experimental value with uncertainty. T K

290.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

906.3 ± 4.0

21-rei/van

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 2-Octenylbenzene

[64275-34-9]

289

C14H20

MW = 188.31

543

C14H20

MW = 188.31

544

C14H20

MW = 188.31

545

C14H20

MW = 188.31

546

C15H22

MW = 202.34

547

C15H22

MW = 202.34

548

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

870.4 ± 1.0

50-zie/eim

7-Octenylbenzene

[35008-87-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

879.2 ± 2.0

12-von/deu

1-(1-Pentenyl)-2,4,6-trimethylbenzene

[500034-32-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.1 ± 2.0

04-kla-3

(1,1,4-Trimethyl-4-pentenyl)benzene

[6683-45-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

887.1 ± 1.0

66-nik/vor

3,4-bis(1-Methylethyl)-1(1-methylethenyl)benzene

[500034-02-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

896.3 ± 1.0

59-vol/zav

(1-Butyl-1-pentenyl)benzene

[42044-74-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.7 ± 2.0

Landolt-Börnstein New Series IV/8E

39-pet/bai

290

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

(1,3-Dimethyl-1-ethyl-2-pentenyl)benzene

[500011-26-7]

C15H22

MW = 202.34

549

C15H22

MW = 202.34

550

C15H22

MW = 202.34

551

C15H22

MW = 202.34

552

C15H22

MW = 202.34

553

C 16H24

MW = 216.37

554

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

924.4 ± 1.0

52-lev/shu-2

1-(1-Methlethyl)-4-(3-methyl1-pentenyl)benzene

[500034-65-1]

Table 1. Experimental value with uncertainty. T K 289.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.1 ± 2.0

05-kla/sau

[3-Methyl-1-(2-methylpropyl)1-butenyl)]benzene

[500034-64-0]

Table 1. Experimental values with uncertainties. T K

289.65 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

873.1 ± 4.0 905.9 ± 3.0

07-sho 60-lap/ryb

1-Methyl-4-(1,1,4-trimethyl-4-pentenyl)- [6683-47-2] benzene Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.8 ± 1.0

66-nik/vor

(1-Propyl-1-hexenyl)benzene

[500034-33-3]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

886.7 ± 2.0

39-pet/bai

1-Decenylbenzene

[33206-62-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

872.6 ± 1.0

47-tuo/guy

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 (3,7-Dimethyl-7-ocetenyl)benzene

[500034-66-2]

291

C16H24

MW = 216.37

555

C16H24

MW = 216.37

556

C16H24

MW = 216.37

557

C16H24

MW = 216.37

558

Table 1. Experimental value with uncertainty. T K 284.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

884.4 ± 2.0

06-kla/sau

1,3-Dimethyl-4-(3-propyl-1-pentenyl)benzene

[500035-57-4]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 1.575. Coefficient ρ = A + BT 1161.75 A -0.850 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

292.15 273.15

ρexp ± 2σ est kg ⋅ m−3

ρexp − ρcalc Ref. kg ⋅ m−3

915.0 ± 2.0 928.0 ± 2.0

1.57 -1.58

36-har-2 36-har-2

Table 3. Recommended values. ρexp ± 2σ est

T K 270.00 280.00 290.00 293.15 298.15

kg ⋅ m−3

932.3 ± 2.5 923.8 ± 2.5 915.3 ± 2.5 912.6 ± 2.5 908.3 ± 2.5

1-Ethenyl-4-octylbenzene

[46745-66-8]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

871.4 ± 0.7

53-ove/fra

2-(1-Heptenyl)-1,3,5-trimethylbenzene

[500034-67-3]

Table 1. Experimental value with uncertainty. T K

290.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

884.4 ± 2.0

Landolt-Börnstein New Series IV/8E

04-kla-3

292

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

1-Ethenyl-4-nonylbenzene

[46843-32-7]

C17H26

MW = 230.39

559

C17H26

MW = 230.39

560

C18H28

MW = 244.42

561

C18H28

MW = 244.42

562

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.2 ± 1.0

53-ove/fra

(4-Methyl-1-pentyl-1-pentenyl)benzene

[500034-68-4]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.750. Coefficient ρ = A + BT 1105.17 A -0.800 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

299.15 273.15

ρexp ± 2σ est kg ⋅ m−3

866.6 ± 2.0 885.9 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.75 -0.75

07-sho 07-sho

Table 3. Recommended values. T K

270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

889.2 ± 2.0 881.2 ± 2.0 873.2 ± 2.0 870.7 ± 2.0 866.7 ± 2.0

1-(2-Butyl-1-hexenyl)2,4-dimethylbenzene

[500034-69-5]

Table 1. Experimental value with uncertainty. T K 300.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.0 ± 2.0

36-har-2

1-Ethenyl-4-decylbenzene

[46926-59-4]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

870.6 ± 1.0

53-ove/fra

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 (1-Hexyl-1-heptenyl)benzene

[900001-32-3]

C19H30

293 MW = 258.45

563

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 3.3562 · 10-2 (combined temperature ranges, weighted), σc,uw = 1.9377 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.07580 · 103 -6.87467 · 10-1 -4.34257 · 10-5

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.95

ρexp ± 2σ est −3

kg ⋅ m

884.80 ± 0.50 870.50 ± 0.50 857.80 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.02 -0.03 -0.03

… … …

68-ano-1( ) 68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

842.00 ± 0.50 814.00 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.05 -0.01

… …

68-ano-1( ) 68-ano-1( )

Further references: [39-pet/bai].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 887.01 ± 0.68 879.90 ± 0.57 872.78 ± 0.53 870.53 ± 0.53 866.97 ± 0.53

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 865.65 ± 0.53 858.51 ± 0.55 851.36 ± 0.56 844.20 ± 0.57 837.04 ± 0.56

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 829.86 ± 0.56 822.68 ± 0.58 815.49 ± 0.64 808.29 ± 0.77

cont.

Landolt-Börnstein New Series IV/8E

294

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

ρ

ρ

(1-Hexyl-1-heptenyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(1-Pentyl-1-octenyl)benzene

[500035-58-5]

C19H30

MW = 258.45

564

C22H36

MW = 300.53

565

Table 1. Experimental value with uncertainty. T K

291.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

876.2 ± 2.0

39-pet/bai

2-(1-Decenyl)-1,3-dimethyl-5(1,1-dimethylethyl)benzene

[500036-24-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

873.1 ± 1.0

54-sch-1

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 (4-Hexyl-3-decenyl)benzene

[500036-38-4]

295

C22H36

MW = 300.53

566

C24H40

MW = 328.58

567

C27H46

MW = 370.66

568

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

876.7 ± 2.0

49-pet/kap

1,4-Dimethyl-2-(1-hexadecenyl)benzene

[500034-70-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

868.0 ± 2.0

02-kla

(1-Decyl-1-undecenyl)benzene

[6703-78-2]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.5196 · 10-1 (combined temperature ranges, weighted), σc,uw = 5.3262 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.04724 · 103 -5.95452 · 10-1 -1.03491 · 10-4

Coefficient A B C

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 310.95 333.15 372.05 273.15

ρexp ± 2σ est −3

kg ⋅ m

863.60 ± 0.50 852.00 ± 0.50 837.60 ± 0.50 811.30 ± 0.60 877.00 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.19 -0.08 0.22 -0.08 0.13

T K

41-cos/sut-1(∆) 41-cos/sut-1(∆) 41-cos/sut-1(∆) 41-cos/sut-1(∆) 42-sch/cos-1( )

…

273.15 293.15 310.95 333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

877.00 ± 0.50 863.60 ± 0.50 852.00 ± 0.50 837.60 ± 0.50 811.30 ± 0.60

ρexp − ρcalc Ref. (Symbol kg ⋅ m−3 in Fig. 1)

0.13 -0.19 -0.08 0.22 -0.08

{) {) {) {) {)

68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1( 68-ano-1(

cont.

Landolt-Börnstein New Series IV/8E

296

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

ρ

ρ

(1-Decyl-1-undecenyl)benzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 878.92 ± 0.60 872.40 ± 0.54 865.86 ± 0.52 863.79 ± 0.52 860.51 ± 0.52

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 859.29 ± 0.52 852.71 ± 0.53 846.10 ± 0.53 839.47 ± 0.53 832.82 ± 0.54

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 826.16 ± 0.55 819.47 ± 0.60 812.76 ± 0.67 806.03 ± 0.80

Landolt-Börnstein New Series IV/8E

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32 (1-Butyl-1-octadecenyl)benzene

[500034-71-9]

297

C28H48

MW = 384.69

569

C29H50

MW = 398.72

570

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

867.5 ± 2.0

36-mik

1-(1-Decyl-1-undecenyl)-2,5dimethylbenzene

[500034-57-1]

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 5.7386 · 10-2 (combined temperature ranges, weighted), σc,uw = 2.8225 · 10-2 (combined temperature ranges, unweighted). T = 273.15 to 372.05 K ρ = A + BT + CT 2 + DT 3 + … 1.05461 · 103 -6.59338 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 293.15 310.95

ρexp ± 2σ est −3

kg ⋅ m

874.50 ± 0.50 861.40 ± 0.50 849.50 ± 0.50

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-0.02 0.07 -0.09

… … …

68-ano-1( ) 68-ano-1( ) 68-ano-1( )

T K

333.15 372.05

ρexp ± 2σ est −3

kg ⋅ m

835.00 ± 0.50 809.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

0.04 -0.01

… …

68-ano-1( ) 68-ano-1( )

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15

ρ ± σ fit kg ⋅ m−3 876.59 ± 0.60 870.00 ± 0.57 863.41 ± 0.54 861.33 ± 0.53 858.03 ± 0.52

T K

300.00 310.00 320.00 330.00 340.00

ρ ± σ fit kg ⋅ m−3 856.81 ± 0.51 850.22 ± 0.50 843.63 ± 0.50 837.03 ± 0.51 830.44 ± 0.53

T K

350.00 360.00 370.00 380.00

ρ ± σ fit kg ⋅ m−3 823.85 ± 0.58 817.25 ± 0.63 810.66 ± 0.70 804.07 ± 0.79

cont.

Landolt-Börnstein New Series IV/8E

298

3.3 Alkenylbenzenes (CnH2n-8), C13 - C32

ρ

ρ

1-(1-Decyl-1-undecenyl)-2,5-dimethylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

(1-Butyl-1-docosenyl)benzene

[500034-72-0]

C32H56

MW = 440.80

571

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

858.0 ± 2.0

36-mik

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

299

4 Tabulated Data on Density - Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) Ethynylbenzene

[536-74-3]

C8H6

MW = 102.14

572

Table 1. Coefficients of the polynomial expansion equation. Standard deviations (see introduction): σc,w = 1.8648 (combined temperature ranges, weighted), σc,uw = 3.7614 · 10-1 (combined temperature ranges, unweighted). T = 273.15 to 414.75 K ρ = A + BT + CT 2 + DT 3 + … 1.21594 · 103 -9.79347 · 10-1

Coefficient A B

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

273.15 414.75 293.15 295.15 293.15 293.15 296.25

ρexp ± 2σ est kg ⋅ m

−3

946.56 ± 2.00 808.30 ± 2.00 929.50 ± 1.50 927.00 ± 1.00 930.00 ± 2.00 929.50 ± 2.00 926.50 ± 2.00

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

-1.87 -1.46 0.65 0.11 1.15 0.65 0.69

1883-weg(✕ ) 1883-weg(✕ ) 1886-bru(✕ ) 1899-nef(∆) 25-bou(✕ ) 29-von/ber(✕ ) 29-von/ber(✕ )

T K

295.15 293.15 298.15 293.15 293.15 303.15

ρexp ± 2σ est kg ⋅ m

−3

930.00 ± 1.00 928.00 ± 1.00 924.60 ± 1.00 928.10 ± 0.60 927.50 ± 0.60 918.30 ± 0.60

ρexp − ρcalc Ref. (Symbol in Fig. 1) kg ⋅ m−3

3.11 -0.85 0.65 -0.75 -1.35 -0.75

31-tru(◆) 34-lov/cam(✕ ) 34-vau(∇) 39-cam/oco( ) 50-wei/del( ) 50-wei/del( )

{ … …

Further references: [06-mou, 31-kre/per, 33-hof/lan].

Table 3. Recommended values (fit to the reliable experimental values according to the equations ρ = A + BT + CT 2 + DT 3 + … or ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)][ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4] ). T K

270.00 280.00 290.00 293.15 298.15 300.00

ρ ± σ fit kg ⋅ m−3 951.52 ± 2.0 941.72 ± 1.9 931.93 ± 1.5 928.85 ± 1.5 923.95 ± 1.4 922.14 ± 1.4

T K

310.00 320.00 330.00 340.00 350.00 360.00

ρ ± σ fit kg ⋅ m−3 912.34 ± 1.5 902.55 ± 1.5 892.76 ± 1.6 882.96 ± 1.6 873.17 ± 1.7 863.38 ± 1.7

T K

370.00 380.00 390.00 400.00 410.00 420.00

ρ ± σ fit kg ⋅ m−3 853.58 ± 1.7 843.79 ± 1.7 834.00 ± 1.7 824.20 ± 1.7 814.41 ± 2.0 804.62 ± 3.7 cont.

Landolt-Börnstein New Series IV/8E

300

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

ρ

ρ

Ethynylbenzene (cont.)

Fig. 1. The symbols show the deviation of the calculated from the experimental values from Table 2. The curves above and below the zero line indicate the calculated error region of the recommended values given in Table 3. The error bars represent the experimental errors. (Error bars smaller than the symbols are omitted for clarity of the figure.)

1-Ethynyl-4-methylbenzene

[766-97-2]

C9H8

MW = 116.16

573

Table 1. Experimental and recommended values with uncertainties. T K 291.15 291.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

912.0 ± 3.0 903.0 ± 8.0 915.9 ± 2.0 915.9 ± 2.0

00-kun/got1) 13-kun1) 34-ott Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) 1-Propynylbenzene

[673-32-5]

301

C9H8

MW = 116.16

574

C9H8

MW = 116.16

575

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.566 . Coefficient ρ = A + BT A 1202.40 B -0.900 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 290.15 293.15 289.15 273.15 293.15 1)

ρexp ± 2σ est kg ⋅ m−3

942.0 ± 2.0 944.0 ± 4.0 937.0 ± 2.0 939.3 ± 3.0 954.5 ± 3.0 938.8 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-1.06 2.74 -1.56 -2.86 -2.06 0.24

28-bou-1 31-tru1) 34-lov/cam 38-gin1) 38-gin1) 39-cam/oco

Not included in calculation of linear coefficients.

Table 3. Recommended values. ρexp ± 2σ est

T K 280.00 290.00 293.15 298.15

kg ⋅ m−3

950.4 ± 1.0 941.4 ± 1.0 938.6 ± 1.0 934.1 ± 1.0

2-Propynylbenzene

[500019-32-9]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.909 . Coefficient ρ = A + BT A 1201.03 B -0.900 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

288.15 293.15 301.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

938.0 ± 3.0 932.0 ± 5.0 931.0 ± 2.0 936.0 ± 2.0 937.4 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

-3.70 -5.20 1.00 -1.20 0.20

27-bou-31) 28-bou-11) 28-gri/lap 31-bou 34-lov/cam cont.

Landolt-Börnstein New Series IV/8E

302

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

2-Propynylbenzene (cont.) Table 3. Recommended values. T K 290.00 293.15 298.15 310.00

ρexp ± 2σ est kg ⋅ m−3

940.0 ± 2.0 937.2 ± 1.6 932.7 ± 1.6 922.0 ± 2.0

1,2-Butadienylbenzene

[2327-98-2]

C10H10

MW = 130.19

576

C10H10

MW = 130.19

577

Table 1. Experimental value with uncertainty. T K 299.65

ρexp ± 2σ est

Ref.

kg ⋅ m−3

924.0 ± 2.0

39-acr/laf

1,3-Butadienylbenzene

[1515-78-2]

Table 1. Fit with estimated B coefficient for 6 accepted points. Deviation σw = 0.634 . Coefficient ρ = A + BT 1191.07 A -0.900 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 289.15 288.05 293.15 293.15 293.15

ρexp ± 2σ est −3

kg ⋅ m

928.6 ± 2.0 930.9 ± 1.0 933.3 ± 2.0 926.0 ± 2.0 927.0 ± 1.0 927.0 ± 1.0

ρexp − ρcalc Ref. kg ⋅ m−3

1.37 0.07 1.48 -1.23 -0.23 -0.23

02-lie/rii 11-von/eis 11-von/eis 34-lov/cam 56-dom-1 57-kup/dom

Table 3. Recommended values. T K 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

939.1 ± 1.3 930.1 ± 0.9 927.2 ± 0.9 922.7 ± 1.1

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) 2,3-Butadienylbenzene

[500034-77-5]

303

C10H10

MW = 130.19

578

C 10H10

MW = 130.19

579

C10H10

MW = 130.19

580

[16520-62-0]

C10H10

MW = 130.19

581

[91-14-5]

C10H10

MW = 130.19

582

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

922.0 ± 2.0

33-car/ber

1-Butynylbenzene

[622-76-4]

Table 1. Experimental values with uncertainties. T K

294.15 291.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

923.0 ± 3.0 915.0 ± 6.0 921.0 ± 2.0

1876-mor 31-tru 38-joh/sch

2-Butynylbenzene

[33598-22-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

926.1 ± 2.0

41-lev/shc

3-Butynylbenzene Table 1. Experimental and recommended values with uncertainties. T K 273.15 273.15 273.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

939.1 ± 2.0 937.5 ± 2.0 938.3 ± 2.10

11-and 13-and Recommended

1,2-Diethenylbenzene

Table 1. Experimental values with uncertainties. T K 294.15 295.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

934.0 ± 2.0 932.5 ± 2.0 928.0 ± 5.0

Landolt-Börnstein New Series IV/8E

34-del 36-fri/bes 55-nau

304

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

1,3-Diethenylbenzene

[108-57-6]

C10H10

MW = 130.19

583

C10H10

MW = 130.19

584

C10H10

MW = 130.19

585

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.426 . Coefficient ρ = A + BT A 1193.35 B -0.900

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

295.15 293.15 298.15

ρexp ± 2σ est kg ⋅ m

−3

926.0 ± 2.0 929.4 ± 0.6 925.3 ± 0.6

ρexp − ρcalc Ref. kg ⋅ m−3

-1.72 -0.15 0.30

34-del 49-dre/mar 49-dre/mar

Table 3. Recommended values. T K 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

932.4 ± 0.7 929.5 ± 0.5 925.0 ± 0.5

1,4-Diethenylbenzene

[105-06-6]

Table 1. Experimental value with uncertainty. T K

313.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

913.0 ± 2.0

34-del

2,4-Dimethyl-1-ethynylbenzene

[500034-74-2]

Table 1. Experimental value with uncertainty. T K 285.15

ρexp ± 2σ est

Ref.

kg ⋅ m

−3

925.8 ± 2.0

26-gri/per

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) 1-Ethyl-4-ethynylbenzene

[500034-73-1]

305

C10H10

MW = 130.19

586

C10H10

MW = 130.19

587

C11H12

MW = 144.22

588

C11H12

MW = 144.22

589

C11H12

MW = 144.22

590

C11H12

MW = 144.22

591

Table 1. Experimental and recommended values with uncertainties. T K

291.15 289.15 298.15 298.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

908.6 ± 6.0 912.8 ± 4.0 908.8 ± 2.0 908.8 ± 2.0

13-kun1) 13-kun1) 34-ott Recommended

Not included in calculation of recommended value.

(1-Methylene-2-propenyl)benzene

[2288-18-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

922.6 ± 2.0

33-car/ber

2-Ethynyl-1,3,5-trimethylbenzene

[769-26-6]

Table 1. Experimental values with uncertainties. T K 294.15 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

900.4 ± 2.0 918.5 ± 2.0

13-kun 34-vau/nie

1-(1,3-Butadienyl)-2-methybenzene

[57132-26-0]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

925.6 ± 1.0

56-dom-1

1-(1,3-Butadienyl)-3-methylbenzene

[62982-07-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

921.2 ± 1.0

56-dom-1

1-(1,3-Butadienyl)-4-methyl-benzene

[33356-85-3]

Table 1. Experimental value with uncertainty. T K 301.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

907.9 ± 2.0

Landolt-Börnstein New Series IV/8E

56-dom-1

306

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

(1-Ethenyl-1-propenyl)benzene

[500034-78-6]

C11H12

MW = 144.22

592

C11H12

MW = 144.22

593

C11H12

MW = 144.22

594

C11H12

MW = 144.22

595

C11H12

MW = 144.22

596

C11H12

MW = 144.22

597

Table 1. Experimental value with uncertainty. T K 294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

915.0 ± 2.0

33-kuh/hof

1-Ethynyl-4-(1-methylethyl)benzene

[23152-99-0]

Table 1. Experimental value with uncertainty. T K 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

903.7 ± 2.0

34-ott

1-Ethynyl-2,4,6-trimethylbenzene

[500034-76-4]

Table 1. Experimental values with uncertainties. T K

294.15 298.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

900.4 ± 2.0 918.5 ± 2.0

13-kun 34-vau/nie

(3-Methyl-1,3-butadienyl)benzene

[21919-51-7]

Table 1. Experimental and recommended values with uncertainties. T K 296.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

942.3 ± 10.0 931.0 ± 2.0 931.0 ± 2.0

02-kla-41) 56-dom-1 Recommended

Not included in calculation of recommended value.

1,3-Pentadienylbenzene

[1608-27-1]

Table 1. Experimental value with uncertainty. T K 288.35

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

932.5 ± 3.0

11-von/eis

2,3-Pentadienylbenzene

[13633-08-4]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

913.7 ± 1.0

66-che/kor

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) 2,4-Pentadienylbenzene

[1007-52-9]

307

C11H12

MW = 144.22

598

C11H12

MW = 144.22

599

C 11H12

MW = 144.22

600

C12H14

MW = 158.24

601

C12H14

MW = 158.24

602

C 12H14

MW = 158.24

603

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

931.2 ± 1.0

56-dom-1

3,4-Pentadienylbenzene

[500034-79-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

916.9 ± 2.0

33-car/ber

1-Pentynylbenzene

[4250-81-1]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

911.0 ± 2.0

31-tru

(E,Z)-1,2-Bis(1-propenyl)benzene

[27304-33-2]

Table 1. Experimental values with uncertainties. T K

294.15 293.65

ρexp ± 2σ est

Ref.

kg ⋅ m−3

926.3 ± 3.0 918.5 ± 3.0

34-del 34-del

(E,Z)-1,3-Bis(1-propenyl)benzene

[500034-92-4]

Table 1. Experimental value with uncertainty. T K 297.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

922.1 ± 2.0

34-del

1,4-Bis(2-propenyl)benzene

[2664-28-0]

Table 1. Experimental values with uncertainties. T K 284.15 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

915.0 ± 3.0 916.0 ± 3.0

Landolt-Börnstein New Series IV/8E

29-que-1 40-lev/kar

308

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

(1,3-Dimethyl-1,2-butadienyl)benzene

[17530-18-6]

C12H14

MW = 158.24

604

[30504-95-1]

C12H14

MW = 158.24

605

C12H14

MW = 158.24

606

C 12H14

MW = 158.24

607

C 12H14

MW = 158.24

608

Table 1. Experimental and recommended values with uncertainties. T K

292.95 293.15 293.15 273.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

927.7 ± 2.0 920.0 ± 4.0 930.2 ± 2.0 946.0 ± 2.0 923.5 ± 3.0 927.0 ± 5.0

04-kla 34-lov/cam 47-zak 47-zak 54-pan/ide Recommended

(2,3-Dimethyl-1,3-butadienyl)benzene

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

937.7 ± 1.0

56-dom-1

1,2-Dipropenylbenzene

[500033-94-3]

Table 1. Experimental values with uncertainties. T K

293.65 294.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

918.5 ± 3.0 926.3 ± 3.0

34-del 34-del

1,3-Dipropenylbenzene

[500033-93-1]

Table 1. Experimental value with uncertainty. T K 297.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

922.1 ± 2.0

34-del

(2-Ethyl-1,3-butadienyl)benzene

[500034-82-2]

Table 1. Experimental value with uncertainty. T K

292.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

928.8 ± 2.0

39-deu-1

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) 1-Ethynyl-2,3,4,6-tetramethylbenzene

[500034-75-3]

309

C12H14

MW = 158.24

609

C12H14

MW = 158.24

610

C12H14

MW = 158.24

611

C12H14

MW = 158.24

612

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

946.3 ± 2.0

43-ada/the

1,2-Hexadienylbenzene

[13633-27-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

911.8 ± 1.0

66-che/bal

1,3-Hexadienylbenzene

[41635-77-2]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.400 . Coefficient ρ = A + BT 1182.34 A -0.900 B Table 2. Experimental values with uncertainties. T K

293.15 285.15

ρexp ± 2σ est kg ⋅ m−3

918.9 ± 2.0 925.3 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.40 -0.40

07-kla-1 07-kla-1

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

930.3 ± 2.0 921.3 ± 2.0 918.5 ± 2.0 914.0 ± 2.0

280.00 290.00 293.15 298.15

2,3-Hexadienylbenzene

[13632-89-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

914.7 ± 1.0

Landolt-Börnstein New Series IV/8E

66-che/kor

310

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

3,4-Hexadienylbenzene

[13633-29-9]

C12H14

MW = 158.24

613

C12H14

MW = 158.24

614

C12H14

MW = 158.24

615

[1009-08-1]

C12H14

MW = 158.24

616

[500025-39-8]

C12H14

MW = 158.24

617

C12H14

MW = 158.24

618

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

910.8 ± 1.0

66-che/bal

3,5-Hexadienylbenzene

[500034-80-0]

Table 1. Experimental value with uncertainty. T K 286.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

930.4 ± 2.0

35-coh

1-Hexynylbenzene

[1129-65-3]

Table 1. Experimental values with uncertainties. T K

290.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

899.0 ± 2.0 902.4 ± 2.0

31-tru 38-joh/sch

(3-Methyl-1-methylene-2-butenyl)benzene Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

923.5 ± 2.0

34-rav

(2-Methyl-1,3-pentadienyl)benzene

Table 1. Experimental value with uncertainty. T K

298.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

898.6 ± 1.0

12-bje

(3-Methyl-1,3-pentadienyl)benzene

[57007-36-0]

Table 1. Experimental and recommended values with uncertainties. T K 296.15 292.15 293.15 293.15 1)

ρexp ± 2σ est

Ref.

kg ⋅ m−3

952.3 ± 6.0 959.3 ± 6.0 946.6 ± 2.0 946.6 ± 2.0

02-kla-41) 06-kla-11) 56-dom-1 Recommended

Not included in calculation of recommended value.

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) (4-Methyl-1,3-pentadienyl)benzene

[500034-81-1]

311

C12H14

MW = 158.24

619

C12H14

MW = 158.24

620

C13H16

MW = 172.27

621

C13H16

MW = 172.27

622

C13H16

MW = 172.27

623

C13H16

MW = 172.27

624

Table 1. Experimental value with uncertainty. T K 289.35

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

951.2 ± 2.0

11-von/eis

1-(1-Propenyl)-4-(2-propenyl)benzene

[500034-93-5]

Table 1. Experimental values with uncertainties. T K

284.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

918.0 ± 3.0 916.0 ± 3.0

29-que-1 40-lev/kar

(2,4-Dimethyl-1,3-pentadienyl)benzene

[24107-64-0]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

910.9 ± 1.0

69-sta/gan

(1,2-Heptadienyl)benzene

[13633-28-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

912.5 ± 1.0

66-che/bal

(3,4-Heptadienyl)benzene

[13633-30-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

909.7 ± 1.0

66-che/bal

1-(1,2-Hexadienyl)-4-methylbenzene

[30011-67-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

898.1 ± 1.0

Landolt-Börnstein New Series IV/8E

70-che/bal-1

312

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

1-(2,3-Hexadienyl)-2-methylbenzene

[18550-72-6]

C13H16

MW = 172.27

625

C13H16

MW = 172.27

626

C13H16

MW = 172.27

627

C13H16

MW = 172.27

628

C13H16

MW = 172.27

629

C13H16

MW = 172.27

630

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

916.9 ± 1.0

68-che/bal

1-(2,3-Hexadienyl)-3-methylbenzene

[13633-09-5]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

916.5 ± 1.0

66-che/kor

1-(2,3-Hexadienyl)-4-methylbenzene

[18335-43-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

916.4 ± 1.0

68-che/bal

(3-Methyl-3,5-hexadienyl)benzene

[500034-84-4]

Table 1. Experimental value with uncertainty. T K 286.45

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

915.2 ± 2.0

35-coh

(5-Methyl-1,2-hexadienyl)benzene

[27694-91-3]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

893.1 ± 1.0

69-che/pis

(5-Methyl-1,3-hexadienyl)benzene

[17697-67-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

924.8 ± 2.0

07-kla-1

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) (1-Methylene-2-hexenyl)benzene

[500034-83-3]

313

C13H16

MW = 172.27

631

C14H18

MW = 186.30

632

C14H18

MW = 186.30

633

C14H18

MW = 186.30

634

C14H18

MW = 186.30

635

C14H18

MW = 186.30

636

Table 1. Experimental values with uncertainties. T K 288.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

938.4 ± 5.0 956.5 ± 4.0

24-gri/dub 46-esa/mol

1-(2,4-Dimethyl-1,3-pentadienyl)-3methylbenzene

[24107-66-2]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

922.0 ± 1.0

69-sta/gan

1-(2,4-Dimethyl-1,3-pentadienyl)-4methylbenzene

[24107-65-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

924.5 ± 1.0

69-sta/gan

2-Ethyl-1,3-hexadienylbenzene

[107517-87-3]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

924.0 ± 2.0

57-jac

1-(1,2-Heptadienyl)-4-methylbenzene

[30011-68-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

kg ⋅ m−3

897.6 ± 1.0

70-che/bal-1

(6-Methyl-1,3-heptadienyl)benzene

[500034-85-5]

Table 1. Experimental value with uncertainty. T K

288.05

ρexp ± 2σ est

Ref.

kg ⋅ m−3

948.6 ± 2.0

Landolt-Börnstein New Series IV/8E

11-von/eis

314

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

1-(5-Methyl-1,2-hexadienyl)-4methylbenzene

[30011-69-9]

C14H18

MW = 186.30

637

C14H18

MW = 186.30

638

C15H20

MW = 200.32

639

C15H20

MW = 200.32

640

C15H20

MW = 200.32

641

C15H20

MW =200.32

642

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

891.9 ± 1.0

70-che/bal-1

1,2-Octadienylbenzene

[27694-86-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.0 ± 1.0

69-che/pis

(3-Ethyl-1,3-heptadienyl)benzene

[100950-89-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

906.0 ± 2.0

57-jac

1-Methyl-4-(1,2-octadienyl)benzene

[30011-70-2]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

888.5 ± 1.0

70-che/bal-1

1,2-Nonadienylbenzene

[27694-87-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.2 ± 1.0

69-che/pis

3,7-Nonadienylbenzene

[500034-86-6]

Table 1. Experimental value with uncertainty. T K

294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

887.0 ± 2.0

43-arb/kuz-1

Landolt-Börnstein New Series IV/8E

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10) (1,3,4,4-Tetramethyl-1,2pentadienyl)benzene

[111679-81-3]

315

C15H20

MW = 200.32

643

C16H22

MW = 214.35

644

C16H22

MW = 214.35

645

C16H22

MW = 214.35

646

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.250 . Coefficient ρ = A + BT A 1158.93 B -0.850 Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 273.15

ρexp ± 2σ est −3

kg ⋅ m

910.0 ± 2.0 926.5 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.25 -0.25

52-zak/sap 52-zak/sap

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

929.4 ± 1.6 920.9 ± 1.1 912.4 ± 0.9 909.8 ± 1.3 905.5 ± 1.8

270.00 280.00 290.00 293.15 298.15

1,2-Decadienylbenzene

[27694-88-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

894.8 ± 1.0

69-che/pis

(3,7-Dimethyl-1,6-octadienyl)benzene

[500034-87-7]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

895.7 ± 2.0

14-rup

(3,7-Dimethyl-1,7-octadienyl)benzene

[500034-88-8]

Table 1. Experimental value with uncertainty. T K 290.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

894.7 ± 2.0

Landolt-Börnstein New Series IV/8E

06-kla/sau

316

4 Alkynylbenzenes, Alkadienylbenzenes and Dialkenylbenzenes (CnH2n-10)

[1-(1,1-Dimethylethyl)-4,4-dimethyl-1,2- [500034-90-2] pentadienyl]benzene

C17H24

MW = 228.38

647

C17H24

MW = 228.38

648

C17H24

MW = 228.38

649

C17H24

MW = 228.38

650

C18H26

MW = 242.40

651

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

880.8 ± 2.0

35-for/tho

(4,8-Dimethyl-1,7-nonadienyl)benzene

[500034-89-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

889.4 ± 2.0

14-rup

1-Ethyl-4-(1-methylene-3,4,4-trimethyl2-pentenyl)benzene

[101600-27-5]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

896.4 ± 1.0

59-esa

1,2-Undecadienylbenzene

[27694-89-9]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

890.1 ± 1.0

69-che/pis

(5,9-Dimethyl-2,8-decadienyl)benzene

[500034-91-3]

Table 1. Experimental and recommended values with uncertainties. T K

293.15 293.15 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

885.2 ± 2.0 885.1 ± 2.0 885.2 ± 2.0

14-rup 14-rup Recommended

Landolt-Börnstein New Series IV/8E

5 Unsaturated Alkylbenzenes, (CnH2n-12)

317

5 Tabulated Data on Density - Unsaturated Alkylbenzenes (CnH2n-12) 1-Buten-3-ynylbenzene

[5622-76-4]

C10H8

MW = 128.17

652

C10H8

MW = 128.17

653

C11H10

MW = 142.20

654

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

935.6 ± 2.0

56-dom-1

3-Buten-1-ynylbenzene

[13633-26-6]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 1.400 . Coefficient ρ = A + BT A 1156.92 B -0.800

Table 2. Experimental values with uncertainties and deviation from calculated values. ρexp − ρcalc Ref. ρexp ± 2σ est T −3 kg ⋅ m−3 K kg ⋅ m 293.15 273.15

923.8 ± 2.0 937.0 ± 2.0

1.40 -1.40

54-ven/ser 54-ven/ser

Table 3. Recommended values. ρexp ± 2σ est

T K

kg ⋅ m−3

940.9 ± 1.9 932.9 ± 1.4 924.9 ± 1.6 922.4 ± 1.7 918.4 ± 2.1

270.00 280.00 290.00 293.15 298.15

(3-Methyl-3-buten-1-ynyl)benzene

[500036-32-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

924.7 ± 1.0

Landolt-Börnstein New Series IV/8E

57-fav/pav

318

5 Unsaturated Alkylbenzenes, (CnH2n-12)

4-Penten-1-ynylbenzene

[500033-96-5]

C11H10

MW = 142.20

655

C12H12

MW = 156.23

656

C12H12

MW = 156.23

657

C12H12

MW = 156.23

658

C12H12

MW = 156.23

659

Table 1. Experimental values with uncertainties. T K 288.15 291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

939.0 ± 4.0 947.0 ± 2.0

31-gri/lap 59-gro

1,3,5-Hexatrienylbenzene

[54826-11-8]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

965.8 ± 2.0

54-naz/kak-3

1-Hexen-4-ynylbenzene

[186494-65-5]

Table 1. Experimental and recommended values with uncertainties. T K

299.65 293.15 293.15 1)

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

945.0 ± 2.0 973.5 ± 15.0 945.0 ± 2.0

54-cym/dav 54-har1) Recommended

Not included in calculation of recommended value.

5-Hexen-1-ynylbenzene

[16664-52-1]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

940.0 ± 2.0

28-gri/lap-1

(3-Methyl-3-buten-1-ynyl)benzene

[500034-98-0]

Table 1. Fit with estimated B coefficient for 3 accepted points. Deviation σw = 0.694 . Coefficient ρ = A + BT 1191.87 A -0.900 B

cont.

Landolt-Börnstein New Series IV/8E

5 Unsaturated Alkylbenzenes, (CnH2n-12)

319

Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 273.15 286.15 273.15 286.15

ρexp ± 2σ est −3

kg ⋅ m

928.9 ± 2.0 946.0 ± 2.0 930.0 ± 3.0 945.2 ± 2.0 930.1 ± 3.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.87 -0.03 -4.33 -0.83 -4.23

05-bor 05-bor 06-bra1) 06-bra 06-mou1)

Table 3. Recommended values. ρexp ± 2σ est

T K 270.00 280.00 290.00 293.15 298.15

kg ⋅ m−3

948.9 ± 1.2 939.9 ± 1.1 930.9 ± 1.2 928.0 ± 1.5 923.5 ± 2.0

1,2,4-Triethenylbenzene

[7641-80-7]

C12H12

MW = 156.23

660

C13H14

MW = 170.25

661

C13H14

MW = 170.25

662

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

936.6 ± 1.0

66-mak/rei

(5-Methyl-2,3,5-hexatrienyl)benzene

[13633-14-2]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

940.1 ± 1.0

66-che/bal-1

(3-Methyl-3-hexen-1-ynyl)benzene

[500035-69-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

913.9 ± 2.0

Landolt-Börnstein New Series IV/8E

39-mal

320

5 Unsaturated Alkylbenzenes, (CnH2n-12)

1-Methyl-2-(5-methyl-2,3,5hexatrienyl)benzene

[13633-15-3]

C14H16

MW = 184.28

663

C14H16

MW = 184.28

664

C15H18

MW = 198.31

665

C16H20

MW = 212.33

666

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

989.4 ± 2.0

66-che/bal-1

1-Methyl-3-(5-methyl-2,3,5hexatrienyl)benzene

[13732-82-6]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

979.6 ± 2.0

66-che/bal-1

3-Nonen-1-ynylbenzene

[154221-18-8]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

915.2 ± 2.0

40-mal/sol

(3-Methyl-3-nonen-1-ynyl)benzene

[500034-99-1]

Table 1. Fit with estimated B coefficient for 2 accepted points. Deviation σw = 0.550 . Coefficient ρ = A + BT 1127.21 A -0.780 B Table 2. Experimental values with uncertainties and deviation from calculated values. T K

293.15 273.15

ρexp ± 2σ est kg ⋅ m−3

899.1 ± 2.0 913.6 ± 2.0

ρexp − ρcalc Ref. kg ⋅ m−3

0.55 -0.55

36-mal/sol 36-mal/sol

Table 3. Recommended values. T K

270.00 280.00 290.00 293.15 298.15

ρexp ± 2σ est kg ⋅ m−3

916.6 ± 2.2 908.8 ± 1.3 901.0 ± 1.5 898.5 ± 1.7 894.6 ± 2.1

Landolt-Börnstein New Series IV/8E

5 Unsaturated Alkylbenzenes, (CnH2n-12) (5,9-Dimethyl-1,3,9-decatrienyl)benzene [500035-00-7]

321

C18H24

MW = 240.39

667

C19H26

MW = 254.42

668

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

927.3 ± 2.0

25-rup/rin

3,7,11-Tridecatrienylbenzene

[500035-87-0]

Table 1. Experimental value with uncertainty. T K

294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

896.2 ± 2.0

Landolt-Börnstein New Series IV/8E

43-arb/kuz-1

6 Unsaturated Alkynylbenzenes CnH2n-14

323

6 Tabulated Data on Density - Unsaturated Alkynylbenzenes CnH2n-14 1,2-Diethynylbenzene

[21792-52-9]

C 10H6

MW = 126.16

669

C10H6

MW = 126.16

670

C 11H8

MW = 140.18

671

C11H8

MW = 140.18

672

C14H14

MW = 182.27

673

Table 1. Experimental value with uncertainty. T K

290.65

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

978.8 ± 2.0

34-del

1,3-Diethynylbenzene

[500035-02-9]

Table 1. Experimental value with uncertainty. T K 291.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

966.9 ± 2.0

34-del

1,3-pentadiynylbenzene

[4009-22-7]

Table 1. Experimental and recommended values with uncertainties. ρexp ± 2σ est T Ref. −3 K kg ⋅ m 294.15 974.5 ± 3.0 25-pre1) 291.15 974.5 ± 2.0 28-pre-4 291.15 974.5 ± 2.0 43-arb/kuz-1 291.15 974.5 ± 2.0 Recommended 1)

Not included in calculation of recommended value.

1,4-Pentadiynylbenzene

[6088-96-6]

Table 1. Experimental value with uncertainty. T K

293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

979.0 ± 2.0

59-gro

(3,3-Dimethyl-1,4-hexadienyl)benzene

[10509-42-9]

Table 1. Experimental value with uncertainty. T K 293.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

930.4 ± 2.0

Landolt-Börnstein New Series IV/8E

66-gra/zak

324

6 Unsaturated Alkynylbenzenes CnH2n-14

(3,7,11,15-Heptadecatetraenyl)benzene

[500035-01-8]

C23H32

MW = 308.51

674

Table 1. Experimental value with uncertainty. T K 294.15

ρexp ± 2σ est

Ref.

−3

kg ⋅ m

918.0 ± 2.0

43-arb/kuz-1

Landolt-Börnstein New Series IV/8E

References

325

References Reference codes are those used in the TRC SOURCE database. A reference code consists of the year prior to 1900, or the last two digits of the year after 1899, the first three letters of the first author, the first three letters of the second author. An additional sequence number is used when more than one reference in the database has an identical code. 1867-fit/kon

Fittig, R.; Konig, J.; Justus Liebigs Ann. Chem. 144 (1867) 277.

1872-aro 1873-adr 1873-mye 1873-pis/pat 1874-aro 1874-jac 1876-mor 1876-rad 1878-kra-1 1878-vro 1879-aus 1879-cia

Aronheim, B.; Ber. Dtsch. Chem. Ges. 5 (1872) 1068. Adrieenz, A.; Chem. Ber. 6 (1873) 441. Myers, J.; Ber. Dtsch. Chem. Ges. 6 (1873) 439. Pisati, G.; Paterno, E.; Gazz. Chim. Ital. 3 (1873) 551. Aronheim, B.; Justus Liebigs Ann. Chem. 171 (1874) 219. Jacobsen, O.; Ber. Dtsch. Chem. Ges. 7 (1874) 1430. Morgan, T. M.; J. Chem. Soc. 29 (1876) 162. Radziszewski, B.; Ber. Dtsch. Chem. Ges. 9 (1876) 260. Kraut, K.; Justus Liebigs Ann. Chem. 192 (1878) 222. Vroblevskii, E.; Justus Liebigs Ann. Chem. 192 (1878) 196. Austin, A.; Bull. Soc. Chim. Fr. 32 (1879) 12. Ciamician, G. L.; Ber. Dtsch. Chem. Ges. 12 (1879) 1658.

1880-bru-3 1880-cla-1 1880-jan

Bruhl, J. W.; Justus Liebigs Ann. Chem. 200 (1880) 139. Claus, A.; Ber. Dtsch. Chem. Ges. 13 (1880) 896. Janovsky, J. V.; Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt.1 81 (1880) 539. Naccari, A.; Pagliani, S.; Atti R. Accad. Sci. Torino, Cl. Sci. Fis. Mat. Nat. 16 (1881) 407. Naccari, A.; Pagliani, S.; Beibl. Ann. Phys. 6 (1882) 87. Dafert, F. W.; Monatsh. Chem. 4 (1883) 154. Dafert, F. W.; Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt., II 87 (1883) 460. Dafert, F. W.; Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt., II 88 (1883) 318. Flink, G.; Oversidet. Svenska Vetenskaps-Soc. Forh. 40 (5) (1883) 21. Renard, A.; C. R. Hebd. Seances Acad. Sci. 97 (1883) 328. Schramm, J.; Justus Liebigs Ann. Chem. 218 (1883) 383. Schiff, R.; Justus Liebigs Ann. Chem. 220 (1883) 71. Weger, F.; Justus Liebigs Ann. Chem. 221 (1883) 61. Essner, S. C.; Gossin, F.; Bull. Soc. Chim. Fr. 42 (1884) 213. Gladstone, J. H.; J. Chem. Soc., Trans. 45 (1884) 241. Renard, A.; Ann. Chim. Phys. 1 (1884) 223. Schiff, R.; Justus Liebigs Ann. Chem. 223 (1884) 47. Nasini, R.; Bernheimer, O.; Gazz. Chim. Ital. 15 (1885) 59. Silva, R. D.; Bull. Soc. Chim. Fr. 43 (1885) 317. Anschutz, R.; Justus Liebigs Ann. Chem. 235 (1886) 299. Bruhl, J. W.; Justus Liebigs Ann. Chem. 235 (1886) 1. Friedel, C.; Crafts, J. M.; Ann. Chim. Phys. 10 (1887) 411. Negreano, M.; C. R. Hebd. Seances Acad. Sci. 104 (1887) 423. Neubeck, F.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 1 (1887) 649. Timberg, G.; Ann. Phys. (Leipzig) 30 (1887) 545. Knops, C.; Justus Liebigs Ann. Chem. 248 (1888) 175.

1881-nac/pag 1882-nac/pag 1883-daf 1883-daf-2 1883-daf-3 1883-fli 1883-ren 1883-sch-2 1883-sch-3 1883-weg 1884-ess/gos 1884-gla 1884-ren 1884-sch-6 1885-nas/ber 1885-sil 1886-ans-1 1886-bru 1887-fri/cra 1887-neg 1887-neu 1887-tim 1888-kno Landolt-Börnstein New Series IV/8E

326 1888-kra/got 1888-pin 1888-sch-1 1888-vos 1888-vos-1 1888-wee 1889-you-1

References Krafft, F.; Gottig, J.; Ber. Dtsch. Chem. Ges. 21 (1888) 3180. Pinette, J.; Justus Liebigs Ann. Chem. 243 (1888) 32. Schramm, J.; Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. 2B 97 (1888) 586. Voswinkel, A.; Ber. Dtsch. Chem. Ges. 21 (1888) 2829. Voswinkel, A.; Ber. Dtsch. Chem. Ges. 21 (1888) 3499. Weegmann, R.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 2 (1888) 218. Young, S.; J. Chem. Soc., Trans. 55 (1889) 486.

1890-gar 1890-wid 1891-fer 1891-gla 1891-sch/kos

Gartenmeister, R.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 6 (1890) 524. Widman, O.; Chem. Ber. 23 (1890) 3080. Ferche, F.; Ann. Phys. (Leipzig) 44 (1891) 265. Gladstone, J. H.; J. Chem. Soc. 59 (1891) 290. Schall, C.; Kossakowsky, L.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 8 (1891) 241. 1892-cla Claus, A.; J. Prakt. Chem. 46 (1892) 474. 1892-lan/jah Landolt, H.; Jahn, H.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 10 (1892) 289. 1892-per-1 Peratoner, A.; Gazz. Chim. Ital. 22 (1892) 61. 1893-bro Brochet, A.; Bull. Soc. Chim. Fr. 9 (1893) 687. 1893-bro-1 Brochet, A.; C. R. Hebd. Seances Acad. Sci. 117 (1893) 115. 1893-eyk Eykman, J. F.; Recl. Trav. Chim. Pays-Bas 12 (1893) 157. 1893-ram/shi-3 Ramsay, W.; Shields, J.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 12 (1893) 433. 1893-sch Schonrock, O.; Z. Phys. Chem., Stoechiom, Verwandtschaftsl. 11 (1893) 753. 1894-bru-1 Bruhl, J. W.; J. Prakt. Chem. 50 (1894) 119. 1894-jah/mol Jahn, H.; Moller, G.; Z. Phys. Chem. (Leipzig) 13 (1894) 385. 1894-tho/rod-1 Thorpe, T. E.; Rodger, J. W.; Philos. Trans. R. Soc. London, A 185 (1894) 522. 1895-bar/bou Barbier; Bouveault, L.; C. R. Hebd. Seances Acad. Sci. 120 (1895) 1420. 1895-jou Joukovsky, S.; Zh. Russ. Fiz.-Khim. O-va. 27 (1895) 296. 1895-kon Konovalov, M.; Chem. Ber. 28 (1895) 1852. 1895-lin Linebarger, C. E.; J. Am. Chem. Soc. 17 (1895) 615. 1895-toh Tohl, A.; Chem. Ber. 28 (1895) 2459. 1896-lin-1 Linebarger, C. E.; Am. J. Sci. 2 (1896) 331. 1896-luc Lucas, L.; Chem. Ber. 29 (1896) 2885. 1896-per Perkin, W. H.; J. Chem. Soc. 69 (1896) 1025. 1896-zhu Zhukovskii, S. J.; Bull. Soc. Chim. Fr. 16 (1896) 126. 1897-bil-1 Biltz, M. H.; Justus Liebigs Ann. Chem. 296 (1897) 263. 1897-tho/rod-1 Thorpe, T. E.; Rodger, J. W.; Philos. Trans. R. Soc. London, A 189 (1897) 71. 1897-tho/rod-2 Thorpe, T. E.; Rodger, J. W.; Philos. Trans. R. Soc. London, A 189 (1897) 91. 1898-kah Kahlbaum, G. W. A.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 26 (1898) 577. 1898-kon/ego Konovalov, M.; Egorov, J.; Zh. Russ. Fiz.-Khim. O-va. 30 (1898) 1031. 1898-ver Verley, A.; Bull. Soc. Chim. Fr. 19 (1898) 67. 1899-kla Klages, A.; Chem. Ber. 32 (1899) 1549. 1899-nef Nef, J. V.; Justus Liebigs Ann. Chem. 308 (1899) 264. 1899-nie Niemczycki, S.; Bull. Int. Acad. Sci. Cracovie 473 (1899).

00-dut/fri 00-est 00-kun/got 00-per 01-gri-2 02-kla 02-kla-1

Dutoit, P.; Friederich, L.; Arch. Sci. Phys. Nat. 9 (1900) 105. Estreicher, T.; Ber. Dtsch. Chem. Ges. 33 (1900) 436. Kunckell, F.; Gotsch, F.; Ber. Dtsch. Chem. Ges. 33 (1900) 2654. Perkin, W. H.; J. Chem. Soc. 77 (1900) 267. Grignard, V.; Ann. Chim. 24 (1901) 433. Klages, A.; Chem. Ber. 35 (1902) 2245. Klages, A.; Chem. Ber. 35 (1902) 2633.

Landolt-Börnstein New Series IV/8E

References 02-kla-2 02-kla-4 02-lie/rii 02-pat 02-tif-1 03-ans/bec 03-kla-1 03-kla-3 03-kla/kei 03-kla/kei-1 03-kun 03-kun/sie 03-von/kei 03-you/for 04-bar/gri 04-dar 04-dun 04-kla 04-kla-1 04-kla-2 04-kla-3 04-kla/sau 04-kla/sta 04-kun/sta 04-tif 05-age 05-bol/guy 05-bor 05-chr 05-kla/sau 05-wal/hut 06-bla/cou 06-bra 06-gle 06-kla 06-kla-1 06-kla/sau 06-kla/som 06-mou 06-von/koc 07-dun/tho 07-erf 07-kla 07-kla-1 07-lum 07-sho 07-tif 07-tif-2 08-dun/stu 08-liv/mor 08-ric/mat Landolt-Börnstein New Series IV/8E

327

Klages, A.; Chem. Ber. 35 (1902) 3506. Klages, A.; Chem. Ber. 35 (1902) 2646. Liebermann, C.; Riiber, C.; Ber. Dtsch. Chem. Ges. 35 (1902) 2696. Patterson, T. S.; J. Chem. Soc. 81 (1902) 1097. Tiffeneau, M.; C. R. Hebd. Seances Acad. Sci. 134 (1902) 845. Anschutz, R.; Beckerhoff, H.; Justus Liebigs Ann. Chem. 327 (1903) 218. Klages, A.; Ber. Dtsch. Chem. Ges. 36 (1903) 3688. Klages, A.; Ber. Dtsch. Chem. Ges. 36 (1903) 2572. Klages, A.; Keil, R.; Ber. Dtsch. Chem. Ges. 36 (1903) 1632. Klages, A.; Keil, R.; Ber. Dtsch. Chem. Ges. 36 (1903) 1644. Kunckell, F.; Chem. Ber. 36 (1903) 2235. Kunckell, F.; Siecke, K.; Chem. Ber. 36 (1903) 774. Von Auwers, K.; Keil, G.; Chem. Ber. 36 (1903) 1861. Young, S.; Fortey, E. C.; J. Chem. Soc., Trans. 83 (1903) 45. Barbier, Ph.; Grignard, V.; Bull. Soc. Chim. Fr. 31 (1904) 840. Dargens, G.; C. R. Hebd. Seances Acad. Sci. 139 (1904) 868 Dunstan, A. E.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 49 (1904) 590. Klages, A.; Ber. Dtsch. Chem. Ges. 37 (1904) 2301. Klages, A.; Chem. Ber. 37 (1904) 2332. Klages, A.; Ber. Dtsch. Chem. Ges. 37 (1904) 1721. Klages, A.; Ber. Dtsch. Chem. Ges. 37 (1904) 924. Klages, A.; Sautter, R.; Chem. Ber. 37 (1904) 649. Klages, A.; Stamm, C.; Chem. Ber. 37 (1904) 1715. Kunckell, F.; Stahel, K. A.; Ber. Dtsch. Chem. Ges. 37 (1904) 1087. Tiffeneau, M.; C. R. Hebd. Seances Acad. Sci. 139 (1904) 481. Ageeva, M.; Zh. Russ. Fiz.-Khim. O-va. 37 (1905) 662. Bolle, J.; Guye, P. A.; J. Chim. Phys. Phys.-Chim. Biol. 3 (1905) 38. Bork, J.; Zh. Russ. Fiz.-Khim. O-va. 37 (1905) 647. Christomanos, A. C.; Z. Anorg. Chem. 45 (1905) 132. Klages, A.; Sautter; Chem. Ber. 38 (1905) 2312. Walbaum, W.; Huthig, O.; J. Prakt. Chem. 71 (1905) 459. Blaise, E. E.; Courtot, A.; Bull. Soc. Chim. Fr. 35 (1906) 580. Brachin, M.; Bull. Soc. Chim. Fr. 35 (1906) 1163. Gleditsch, E.; Bull. Soc. Chim. Fr. 35 (1906) 1094. Klages, A.; Chem. Ber. 39 (1906) 2306. Klages, A.; Chem. Ber. 39 (1906) 2587. Klages, A.; Sautter; Chem. Ber. 39 (1906) 1938. Klages, A.; Sommer, P.; Ber. Dtsch. Chem. Ges. 39 (1906) 2306. Moureu, C.; Ann. Chim. Phys. 7 (1906) 536. Von Auwers, K.; Kockritz, A.; Justus Liebigs Ann. Chem. 352 (1906) 288. Dunstan, A. E.; Thole, B. T.; Hunt, J. S.; J. Chem. Soc. 91 (1907) 1728. Erfle, H.; Ann. Phys. (Leipzig) 24 (1907) 672. Klages, A.; Chem. Ber. 40 (1907) 2360. Klages, A.; Chem. Ber. 40 (1907) 1768. Lumsden, J. S.; J. Chem. Soc. 91 (1907) 24. Shorygin, P.; Ber. Dtsch. Chem. Ges. 40 (1907) 3111. Tiffeneau, M.; Ann. Chim. Phys. 10 (1907) 145. Tiffeneau, M.; Ann. Chim. Phys. 10 (1907) 322. Dunstan, A. E.; Stubbs, J. A.; J. Chem. Soc., Trans. 93 (1908) 1919. Livingston, J.; Morgan, R.; Higgins, E.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 64 (1908) 170. Richards, T. W.; Mathews, J. H.; J. Am. Chem. Soc. 30 (1908) 8.

328

References

09-bir 09-bod/tab-1 09-fin 09-taf/jur 09-weg

Biron, E. V.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 41 (1909) 569. Bodroux, F.; Taboury, E.; C. R. Hebd. Seances Acad. Sci. 148 (1909) 1675. Findlay, A.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 69 (1909) 203. Tafel, J.; Jurgens, W.; Chem. Ber. 42 (1909) 2548. Weger, M.; Angew. Chem. 22 (1909) 338.

10-bir 10-daw 10-gri

Biron, E.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 42 (1910) 167. Dawson, H. M.; J. Chem. Soc. 97 (1910) 1041. Grishkevich-Trokhimovskii, F.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 42 (1910) 1543. Kishner, N.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 42 (1910) 747. Mills, J. E.; Macrae, D.; J. Phys. Chem. 14 (1910) 797. Schreiner, E.; J. Prakt. Chem. 82 (1910) 292. Timmermans, J.; Bull. Soc. Chim. Belg. 24 (1910) 244. Tyrer, D.; J. Chem. Soc. 97 (1910) 2620. Von Auwers, K.; Eisenlohr, F.; J. Prakt. Chem. 82 (1910) 65. Von Auwers, K.; Peters, G.; Chem. Ber. 43 (1910) 3076. Von Auwers, K.; Roth, W.; Eisenlohr, F.; Justus Liebigs Ann. Chem. 373 (1910) 267. Andre, E.; Bull. Soc. Chim. Belg. 9 (1911) 192. Hilditch, T. P.; Dunstan, A. E.; Z. Elektrochem. Angew. Phys. Chem. 17 (1911) 929. Livingston, J.; Morgan, R.; Schwarz, W.; J. Am. Chem. Soc. 33 (1911) 1041. Riiber, C. N.; Chem. Ber. 44 (1911) 2391. Tyrer, D.; J. Chem. Soc., Trans. 99 (1911) 1633. Von Auwers, K.; Eisenlohr, F.; J. Prakt. Chem. 84 (1911) 37. Von Auwers, K.; Muller, K.; Ber. Dtsch. Chem. Ges. 44 (1911) 1595. Amouroux, G.; Murat, M.; C. R. Hebd. Seances Acad. Sci. 154 (1912) 992. Bjelouss, E.; Ber. Dtsch. Chem. Ges. 45 (1912) 625. Block, H.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 78 (1912) 385. Bygden, A.; Chem. Ber. 45 (1912) 3479. Dunstan, A. E.; Hilditch, T. P.; Ber. Bunsen-Ges. Phys. Chem. 18 (1912) 185. Faust, O.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 79 (1912) 97. Kishner, N.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 44 (1912) 849. Kunckell, F.; Ber. Dtsch. Pharm. Ges. 22 (1912) 180. Kunckell, F.; Ber. Dtsch. Pharm. Ges. 22 (1912) 242. Morgan, J. L. R.; Daghlian, G. K.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 78 (1912) 169. Murat, M.; Amouroux, G.; J. Pharm. Chim. 5 (1912) 473. Richards, T. W.; Stull, W. N.; Mathews, J. H.; Speyers, C. L.; J. Am. Chem. Soc. 34 (1912) 971. Timmermans, J.; Bull. Soc. Chim. Belg. 26 (1912) 205. Von Auwers, K.; Ber. Dtsch. Chem. Ges. 45 (1912) 2764. Von Braun, J.; Deutsch, H.; Schmatloch, A.; Chem. Ber. 45 (1912) 1246. Von Braun, J.; Deutsch, H.; Ber. Dtsch. Chem. Ges. 45 (1912) 2171. Walden, P.; Swinne, R.; Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 79 (1912) 700. Andre, E.; Ann. Chim. Phys. 29 (1913) 540. Blumann, A.; Zeitschel, O.; Ber. Dtsch. Chem. Ges. 46 (1913) 1178. Dunstan, A. E.; Hilditch, T. P.; Thole; J. Chem. Soc., Trans. 103, 133 (1913). Fletcher, J.; Tyrer, D.; J. Chem. Soc., Trans. 103 (1913) 517. Haworth, W. N.; J. Chem. Soc. 103 (1913) 1242. Kishner, N.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 45 (1913) 949. Kunckell, F.; Ber. Dtsch. Pharm. Ges. 23 (1913) 188. Lepin, A.; Zh. Russ. Fiz.-Khim. O-va., Chast Khim. 44 (1913) 1165.

10-kis 10-mil/mac 10-sch-4 10-tim 10-tyr 10-von/eis 10-von/pet 10-von/rot 11-and 11-hil/dun 11-liv/mor 11-rii 11-tyr 11-von/eis 11-von/mul 12-amo/mur 12-bje 12-blo 12-byg 12-dun/hil 12-fau 12-kiz 12-kun 12-kun-1 12-mor/dag 12-mur/amo 12-ric/stu 12-tim 12-von-1 12-von/deu 12-von/deu-1 12-wal/swi 13-and 13-blu/zei 13-dun/hil 13-fle/tyr 13-haw 13-kis-2 13-kun 13-lep

Landolt-Börnstein New Series IV/8E

References 13-muc 13-ram 13-sab/mur-1 13-sab/mur-4 14-hal 14-her 14-kre/gug 14-kre/mei 14-kre/mei-2 14-rup 14-sch 14-tyr 14-tyr-1 14-wus/foe 15-ric/coo 15-sab/mur 15-wal-1 (1915) 1. 16-byg 16-ker 16-ric/shi 16-von 17-von-1 18-fre/fle 18-hal/bau 18-ley 18-von-2 18-von/koh 18-wal 18-wal/ber 19-cha/sim-2 19-eyk 19-kai 19-ric/shi 19-von 19-was/rea 20-bou 20-dar 20-got 20-har/cla 20-ric/dav 21-rad/sim 21-rei/van 21-ric/bar 21-von/zie 22-cha-1

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334 36-har-2 36-ing/rai 36-ipa/cor 36-ipa/pin 36-kaz/pla 36-kir/skv 36-kli/lan 36-mal/sol 36-mar-1 36-mas 36-mas/was 36-mcl/ada 36-mik 36-par 36-roz 36-sha/ost 36-smi/woj 37-bue/gar 37-coh/bui 37-cro/sow 37-fav/zak 37-gro/ipa 37-kur/hea 37-lev 37-lev/gri 37-lev/pet 37-loz/dya 37-mas/was 37-mck/sow 37-mul 37-nel 37-smi 37-til 37-tsu/vik 37-tzu 37-woj 38-ber/low 38-dil/rei 38-eva-2 38-gin 38-hus/fox 38-ipa/pin-1 38-ipa/sch 38-joh/sch 38-koc/ste 38-oco/sow 38-ols/was 38-pet/lap 38-sta 38-til 38-whi/ros 39-acr/laf

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40-ano 40-ju/she 40-lev/kar 40-mal/sol 40-ser 40-smi/gus-1 40-smi/spi 40-tou/hen 40-tur 40-zie/gri 41-ano 41-ano-1 41-cos/sut-1 41-gib 41-hus/gui 41-ju/woo

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336 41-lev/pan 41-lev/shc 41-mai/str 41-nes/pec-1 41-ney/pil 41-pau 41-pet/lap 41-sch/sch 41-sch/sch-1 41-wel/hen 42-ark/mee 42-fuj/oha 42-gar/ada 42-gei 42-hus/kay 42-jon/sco 42-ju/woo 42-lar/tho 42-pet/che 42-sch 42-sch/cos-1 42-sch/gro 42-tra/was 42-zei/sch 43-ada/the 43-ano 43-ano-2 43-ano-3 43-ano-4 43-arb/kuz-1 43-bal/mar 43-bis/wal 43-gil/mea 43-gol/jos 43-gri/lud 43-ham/mca 43-hen/aus 43-hen/kur 43-het/shc 43-new 43-pfe 43-pla 43-pok 43-wib/ove 43-wil 43-woo/bru

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61-bel/web 61-bor/zac 61-del 61-fin 61-jes/sta 61-nyv/erd 61-sch/sau

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