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4-Aminobenzoic 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:
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
Deltafsolid-97.99 ± 0.41kcal/molCcrNabavian, Sabbah, et al., 1977Author was aware that data differs from previously reported values; ALS
Deltafsolid-98.8 ± 0.1kcal/molCcbLebedeva, Gutner, et al., 1971Hfusion=5.0±0.1, see Lebedeva, Rjadnenko, et al., 1969; ALS
Deltafsolid-78.47kcal/molCcbPushkareva and Kokoshko, 1946Author's hf298_condensed=-81.5 kcal/mol, used C as diamond; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-799.47 ± 0.35kcal/molCcrNabavian, Sabbah, et al., 1977Author was aware that data differs from previously reported values; ALS
Deltacsolid-798.7 ± 0.1kcal/molCcbLebedeva, Gutner, et al., 1971Hfusion=5.0±0.1, see Lebedeva, Rjadnenko, et al., 1969; ALS
Deltacsolid-819.0kcal/molCcbPushkareva and Kokoshko, 1946Author's hf298_condensed=-81.5 kcal/mol, used C as diamond; ALS

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
44.79323.Satoh and Sogabe, 1941T = 0 to 100 C. Mean value.; DH
42.50298.Andrews, Lynn, et al., 1926T = 22 to 190 C.; 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.

Nabavian, Sabbah, et al., 1977
Nabavian, P.M.; Sabbah, R.; Chastel, R.; Laffitte, M., Thermodynamique de composes azotes. II. Etude thermochimique des acides aminobenzoiques, de la pyrimidine, de l'uracile et de la thymine., J. Chim. Phys., 1977, 74, 115-126. [all data]

Lebedeva, Gutner, et al., 1971
Lebedeva, N.D.; Gutner, N.M.; Ryadnenko, V.L., Heats of combustion and formation of certain aromatic amino-derivatives, Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 561-562. [all data]

Lebedeva, Rjadnenko, et al., 1969
Lebedeva, N.D.; Rjadnenko, B.L.; Gutner, N.M., Heats of formation of some N-containing organic compounds, Int. Conf. Calorim. Therm. (Warsaw, Poland), 1969, 1-8. [all data]

Pushkareva and Kokoshko, 1946
Pushkareva, Z.V.; Kokoshko, Z.U., On the question of the relation between the structure and bacteriostatic activity of sulphanilamide compounds. I. The resonance energy of some sulphanilamide compounds, Zh. Obshch. Kim., 1946, 16, 1269-1278. [all data]

Satoh and Sogabe, 1941
Satoh, S.; Sogabe, T., The heat capacities of some organic compounds containing nitrogen and the atomic heat of nitrogen. (2), Sci., Pap. Inst. Phys. Chem. Res. (Tokyo), 1941, 38, 231-237. [all data]

Andrews, Lynn, et al., 1926
Andrews, D.H.; Lynn, G.; Johnston, J., The heat capacities and heat of crystallization of some isomeric aromatic compounds, J. Am. Chem. Soc., 1926, 48, 1274-1287. [all data]


Notes

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