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Benzene, 1,2,3,4-tetramethyl-

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil478.1 ± 0.8KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus266.82KN/ABirch, Dean, et al., 1949Uncertainty assigned by TRC = 0.2 K; TRC
Tfus265.5KN/AParks and Huffman, 1931Uncertainty assigned by TRC = 1. K; TRC
Tfus265.75KN/ASmith and Lux, 1929Uncertainty assigned by TRC = 2.5 K; TRC
Tfus266.75KN/ASmith and MacDougall, 1929Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Ttriple265.4KN/AHuffman, Parks, et al., 1931Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Deltavap54.0kJ/molN/ARu«7825»icka, Zábranský, et al., 1994AC
Deltavap52.56 ± 0.17kJ/molCSabbah, Tabet, et al., 1994ALS
Deltavap52.6 ± 0.2kJ/molCSabbah, Tabet, et al., 1994See also Yaws, Yang, et al., 1990.; AC
Deltavap57.2kJ/molN/AReid, 1972AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
50.7367.AStephenson and Malanowski, 1987Based on data from 352. - 509. K.; AC
55.7331.N/AStull, 1947Based on data from 316. - 477. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
315.8 - 477.64.215961675.172-79.655Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
11.23265.4Domalski and Hearing, 1996AC
11.230265.4Huffman, Parks, et al., 1931, 2DH

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
42.3265.4Huffman, Parks, et al., 1931, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Birch, Dean, et al., 1949
Birch, S.F.; Dean, R.A.; Fidler, F.A.; Lowry, R.A., The preparation of the c(10) monocyclic aromatic hydrocarbons, J. Am. Chem. Soc., 1949, 71, 1362. [all data]

Parks and Huffman, 1931
Parks, G.S.; Huffman, H.M., Some fusion and transition data for hydrocarbons, Ind. Eng. Chem., 1931, 23, 1138-9. [all data]

Smith and Lux, 1929
Smith, L.I.; Lux, A.R., Studies on the Polymethylbenzenes I. A Study of the Jacobsen Reaction with Pentamethylbenzene, and the Preparation of Prehnitene, J. Am. Chem. Soc., 1929, 51, 2994-3000. [all data]

Smith and MacDougall, 1929
Smith, L.I.; MacDougall, F.H., Studies on the Polymethylbenzenes II. The Melting Points of the Tetramethylbenzenes, and of Penta- and Hexamethylbenzene, and the Freezing Point Diagram of Mixtures of Durene and Isodurene, J. Am. Chem. Soc., 1929, 51, 3001-8. [all data]

Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal Data on Organic Compounds X. Further Studies on the Heat Capacities, Entropies, and Free Energies of Hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-88. [all data]

Ru«7825»icka, Zábranský, et al., 1994
Ru«7825»icka, Vlastimil; Zábranský, Milan; Ru«7825»icka, Kvetoslav; Majer, Vladimír, Vapor pressures for a group of high-boiling alkylbenzenes under environmental conditions, Thermochimica Acta, 1994, 245, 121-144, https://doi.org/10.1016/0040-6031(94)85073-9 . [all data]

Sabbah, Tabet, et al., 1994
Sabbah, R.; Tabet, D.; Belaadi, S., Enthalpie de sublimation ou vaporisation de quelques derives methyles du benzene, Thermochim. Acta, 1994, 247, 193-199. [all data]

Yaws, Yang, et al., 1990
Yaws, C.L.; Yang, H.C.; Cawley, W.A., Predict enthalpy of vaporization, Hydrocarb. Process. Int. Ed., 1990, 69, 6, 87. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Huffman, Parks, et al., 1931, 2
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]


Notes

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