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1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1)

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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-1838.kJ/molCcbChappel and Hoare, 1958ALS
Quantity Value Units Method Reference Comment
Deltacsolid-1952.kJ/molCcbChappel and Hoare, 1958Corresponding «DELTA»fsolid = -1838. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
solid,1 bar283.5J/mol*KN/AEvans, Hoare, et al., 1962DH
solid,1 bar285.32J/mol*KN/ADe Kruif, Van Miltenburg, et al., 1982DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
269.52300.De Kruif, Van Miltenburg, et al., 1982T = 120 to 300 K.; DH
268.1298.15Evans, Hoare, et al., 1962T = 21 to 303 K.; DH

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 by: Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
14.980312.1crystaline, IIcrystaline, IDe Kruif, Van Miltenburg, et al., 1982 

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
48.0312.1crystaline, IIcrystaline, IDe Kruif, Van Miltenburg, et al., 1982 

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.

Chappel and Hoare, 1958
Chappel, F.P.; Hoare, F.E., The heat of combustion of citric acid monohydrate, Trans. Faraday Soc., 1958, 54, 367-371. [all data]

Evans, Hoare, et al., 1962
Evans, D.M.; Hoare, F.E.; Melia, T.P., Heat capacity, enthalpy and entropy of citric acid monohydrate, Trans. Faraday Soc., 1962, 58, 1511-1514. [all data]

De Kruif, Van Miltenburg, et al., 1982
De Kruif, C.G.; Van Miltenburg, J.C.; Sprenkels, A.J.J.; Stevens, G., Thermodynamic properties of citric acid and the system citric acid-water, Thermochim. Acta, 1982, 58, 341-354. [all data]


Notes

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