Heptanoic acid

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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
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
Δfliquid-608.5 ± 0.9kJ/molCcbAdriaanse, Dekker, et al., 1965DRB
Δfliquid-611.49 ± 0.59kJ/molCcbLebedeva, 1964ALS
Quantity Value Units Method Reference Comment
Δcliquid-4146.9 ± 0.9kJ/molCcbAdriaanse, Dekker, et al., 1965Corresponding Δfliquid = -608.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-4144.0 ± 0.59kJ/molCcbLebedeva, 1964Corresponding Δfliquid = -611.41 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid323.35J/mol*KN/ALabban and Westrum, 1991DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
267.31298.15Labban and Westrum, 1991T = 5 to 350 K.; DH
265.43298.15Schaake, van Miltenburg, et al., 1982T = 80 to 305 K.; DH

References

Go To: Top, Condensed phase thermochemistry data, Notes

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

Adriaanse, Dekker, et al., 1965
Adriaanse, N.; Dekker, H.; Coops, J., Heats of combustion of normal saturated fatty acids and their methyl esters, Rec. Trav. Chim. Pays/Bas, 1965, 84, 393-407. [all data]

Lebedeva, 1964
Lebedeva, N.D., Heats of combustion of monocarboxylic acids, Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]

Labban and Westrum, 1991
Labban, A.K.; Westrum, E.F., Heat capacity and thermophysical properties of n-heptanoic acid from 5 to 350 K, Can. J. Chem., 1991, 69(11), 1796-1803. [all data]

Schaake, van Miltenburg, et al., 1982
Schaake, R.C.F.; van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of the normal alkanoic acids. I. Molar heat capacities of seven odd-numbered normal alkanoic acids, J. Chem. Thermodynam., 1982, 14, 763-769. [all data]


Notes

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