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Urea, phenyl-

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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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil511.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus420.6KN/AFerro and DellaGatta, 1987Uncertainty assigned by TRC = 0.3 K; TRC

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
33. ± 1.406.TEFerro and Della Gatta, 1987Based on data from 392. - 412. K.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
5.6597420.6Ferro and Della Gatta, 1987DH
5.660420.6Acree, 1991AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
13.5420.6Ferro and Della Gatta, 1987DH

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:


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.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Ferro and DellaGatta, 1987
Ferro, D.; DellaGatta, G., Enthalpies of Subl. and Fusion of Monophenyl and Diphenyl-1,3-urea, Thermochim. Acta, 1987, 122, 189. [all data]

Ferro and Della Gatta, 1987
Ferro, D.; Della Gatta, G., Enthalpies of sublimation and fusion of monophenylurea and diphenyl-1,3-urea, Thermochim. Acta, 1987, 122, 189-195. [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]


Notes

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