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Heptane

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Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.)

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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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

DeltavapH° (kcal/mol) Method Reference Comment
8.762N/AMajer and Svoboda, 1985 
8.75N/ARuzicka and Majer, 1994AC
8.82N/AJakli, Tzias, et al., 1979Based on data from 278. - 353. K.; AC
8.75 ± 0.02CMajer, Svoboda, et al., 1979AC
8.736N/AReid, 1972AC
8.733COsborne and Ginnings, 1947ALS
7.65 ± 0.04VMathews, 1926ALS

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.

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Ruzicka and Majer, 1994
Ruzicka, Kvetoslav; Majer, Vladimir, Simultaneous Treatment of Vapor Pressures and Related Thermal Data Between the Triple and Normal Boiling Temperatures for n-Alkanes C5--C20, J. Phys. Chem. Ref. Data, 1994, 23, 1, 1, https://doi.org/10.1063/1.555942 . [all data]

Jakli, Tzias, et al., 1979
Jakli, G.; Tzias, P.; Van Hook, W.A., The vapor pressure isotope effect of perdeuteroheptane from 5 to 80°C, Acta Chim. Acad. Sci. Hung., 1979, 99, 2, 121. [all data]

Majer, Svoboda, et al., 1979
Majer, Vladimír; Svoboda, Václav; Hála, Slavoj; Pick, Jirí, Temperature dependence of heats of vaporization of saturated hydrocarbons C5-C8; Experimental data and an estimation method, Collect. Czech. Chem. Commun., 1979, 44, 3, 637-651, https://doi.org/10.1135/cccc19790637 . [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]

Osborne and Ginnings, 1947
Osborne, N.S.; Ginnings, D.C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. Res. NBS, 1947, 39, 453-477. [all data]

Mathews, 1926
Mathews, J.H., The accurate measurement of heats of vaporization of liquids, J. Am. Chem. Soc., 1926, 48, 562-576. [all data]


Notes

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