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

Quantity Value Units Method Reference Comment
Deltasub101. ± 7.kJ/molAVGN/AAverage of 6 values; Individual data points

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
90.2 ± 0.6363.CLehman, Gentry, et al., 1998AC
101.8 ± 0.4350.MEJimenez, Roux, et al., 1987Based on data from 340. - 359. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
20.47445.5Domanska, Kozlowska, et al., 2002AC
19.25443.2Pitzer, Peiper, et al., 1984AC


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

Lehman, Gentry, et al., 1998
Lehman, Richard L.; Gentry, Jefffery S.; Glumac, Nick G., Thermal stability of potassium carbonate near its melting point, Thermochimica Acta, 1998, 316, 1, 1-9, https://doi.org/10.1016/S0040-6031(98)00289-5 . [all data]

Jimenez, Roux, et al., 1987
Jimenez, P.; Roux, M.V.; Turrion, C., Thermochemical properties of N-heterocyclic compounds. I. Enthalpies of combustion, vapour pressures and enthalpies of sublimation, and enthalpies of formation of pyrazole, imidazole, indazole, and benzimidazole, J. Chem. Thermodyn., 1987, 19, 985-992. [all data]

Domanska, Kozlowska, et al., 2002
Domanska, Urszula; Kozlowska, Marta Karolina; Rogalski, Marek, Solubilities, Partition Coefficients, Density, and Surface Tension for Imidazoles + Octan-1-ol or + Water or + n -Decane «8224», J. Chem. Eng. Data, 2002, 47, 3, 456-466, https://doi.org/10.1021/je0103014 . [all data]

Pitzer, Peiper, et al., 1984
Pitzer, Kenneth S.; Peiper, J. Christopher; Busey, R.H., Thermodynamic Properties of Aqueous Sodium Chloride Solutions, J. Phys. Chem. Ref. Data, 1984, 13, 1, 1, https://doi.org/10.1063/1.555709 . [all data]


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