Benzene, 1-ethyl-3,5-dimethyl-

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Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfliquid-87.8 ± 1.2kJ/molCcbGood, 1975 
Δfliquid-87.3 ± 2.6kJ/molCcbProsen, Johnson, et al., 1946 
Quantity Value Units Method Reference Comment
Δcliquid-5848.1 ± 1.0kJ/molCcbGood, 1975Corresponding Δfliquid = -87.78 kJ/mol (simple calculation by NIST; no Washburn corrections)
Δcliquid-5848.7 ± 2.6kJ/molCcbProsen, Johnson, et al., 1946Corresponding Δfliquid = -87.19 kJ/mol (simple calculation by NIST; no Washburn corrections)

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, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil456.8 ± 0.1KAVGN/AAverage of 14 out of 15 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus188.79KN/AStreiff, Hulme, et al., 1955Uncertainty assigned by TRC = 0.06 K; TRC
Tfus188.79KN/AStreiff, Hulme, et al., 1955Uncertainty assigned by TRC = 0.04 K; TRC
Tfus188.82KN/AStreiff, Hulme, et al., 1955Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Δvap52.4kJ/molN/AReid, 1972AC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
48.0351.AStephenson and Malanowski, 1987Based on data from 336. to 487. K.; AC
47.5310.N/AStull, 1947Based on data from 295. to 456. K.; AC

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

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

Good, 1975
Good, W.D., The standard enthalpies of combustion and formation of n-butylbenzene, the dimethylethylbenzenes, and the tetramethylbenzenes in the condensed state, J. Chem. Thermodyn., 1975, 7, 49-59. [all data]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes, J. Res. NBS, 1946, 36, 455-461. [all data]

Streiff, Hulme, et al., 1955
Streiff, A.J.; Hulme, A.R.; Cowie, P.A.; Krouskop, N.C.; Rossini, F.D., Purification, Purity, and Freezing Points of Sixty-four American Petroleum Institute Standard and Research Hydrocarbons, Anal. Chem., 1955, 27, 411. [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]


Notes

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