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Urea, trimethyl-

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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 - R.L. Brown and S.E. Stein
AC - W.E. Acree, Jr., J.S. Chickos
DH - E.S. Domalski and E.D. Hearing

Tboil505.7KN/AWeast and Grasselli, 1989BS

Reduced pressure boiling point

Tboil (K)Pressure (bar)ReferenceComment
400. - 401.0.021Frinton Laboratories Inc., 1986BS

Enthalpy of vaporization

DeltavapH (kJ/mol)Temperature (K)ReferenceComment
89.7 ± 1.2360.Piacente, Ferro, et al., 1990Based on data from 345. - 375. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol)Temperature (K)ReferenceComment
14.300344.4Della Gatta and Ferro, 1987DH
14.3344.4Acree, 1991AC

Entropy of fusion

DeltafusS (J/mol*K)Temperature (K)ReferenceComment
41.5344.4Della Gatta and Ferro, 1987DH


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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]

Frinton Laboratories Inc., 1986
Frinton Laboratories Inc., Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]

Piacente, Ferro, et al., 1990
Piacente, V.; Ferro, D.; Gatta, G. Della, Sublimation enthalpy of eleven alkyl derivatives of urea, Thermochimica Acta, 1990, 158, 1, 79-85. [doi:10.1016/0040-6031(90)80054-3] [all data]

Della Gatta and Ferro, 1987
Della Gatta, G.; Ferro, D., Enthalpies of fusion and solid-to-solid transition, entropies of fusion for urea and twelve alkylureas, Thermochim. Acta, 1987, 122, 143-152. [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. [doi:10.1016/0040-6031(91)87098-H] [all data]


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