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Data at NIST subscription sites:

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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil644.2KN/AAldrich Chemical Company Inc., 1990BS
Quantity Value Units Method Reference Comment
Tfus458.39KN/ADonnelly, Drewes, et al., 1990Uncertainty assigned by TRC = 0.2 K; TRC
Tfus457.5KN/APlato and Glasgow, 1969Uncertainty assigned by TRC = 0.2 K; TRC
Tfus458.5KN/APlato and Glasgow, 1969Uncertainty assigned by TRC = 0.2 K; TRC
Tfus457.55KN/ACullinane and Rees, 1940Uncertainty assigned by TRC = 0.4 K; TRC
Quantity Value Units Method Reference Comment
Deltasub111.45 ± 0.37kJ/molCSabbah and El Watik, 1992ALS
Deltasub114.5 ± 0.4kJ/molCSabbah and El Watik, 1992AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
86.0351.AStephenson and Malanowski, 1987Based on data from 336. - 395. K. See also Nelson and Smith, 1942.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
25.660458.40N/ASabbah and El Watik, 1992DH
28.4457.2DSCGupta, Singh, et al., 2007AC
25.7458.4N/ASabbah and El Watik, 1992AC
26.92458.2N/AAcree, 1991AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Go To: Top, Phase change data, Notes

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

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Donnelly, Drewes, et al., 1990
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W., Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermochim. Acta, 1990, 167, 2, 155, https://doi.org/10.1016/0040-6031(90)80476-F . [all data]

Plato and Glasgow, 1969
Plato, C.; Glasgow, A.R., Jr., Differential scanning calorimetry as a general method for determining the purity and heat of fusion of high-purity organic chemicals. Application to 95 compounds, Anal. Chem., 1969, 41, 2, 330, https://doi.org/10.1021/ac60271a041 . [all data]

Cullinane and Rees, 1940
Cullinane, N.M.; Rees, W.T., Isomorphous relationships of some organic compounds of analogous constitution, Trans. Faraday Soc., 1940, 36, 507. [all data]

Sabbah and El Watik, 1992
Sabbah, R.; El Watik, L., Etude thermodynamique de la phenoxazine et de la phenotiazine, Thermochim. Acta, 1992, 197, 381-390. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Nelson and Smith, 1942
Nelson, O.A.; Smith, L.E., The Vapor Pressure of Phenothiazine 1, J. Am. Chem. Soc., 1942, 64, 12, 3035-3037, https://doi.org/10.1021/ja01264a086 . [all data]

Gupta, Singh, et al., 2007
Gupta, R.K.; Singh, S.K.; Singh, R.A., Some physicochemical studies on organic eutectics, Journal of Crystal Growth, 2007, 300, 2, 415-420, https://doi.org/10.1016/j.jcrysgro.2006.12.017 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]


Go To: Top, Phase change data, References