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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tfus554.6KN/AKana'an, 1972Uncertainty assigned by TRC = 1. K; TRC
Tfus556.15KN/ASmith and Andrews, 1931Uncertainty assigned by TRC = 1.5 K; TRC
Tfus553.15KN/AGomberg and Kamm, 1917Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Deltasub150.9 ± 5.6kJ/molReviewRoux, Temprado, et al., 2008There are insufficient literature values to properly evaluate the data and insufficient information to construct thermochemical cycles or estimate values for comparison, and one must rely solely upon reported uncertainities and the quality of the measurements. In general, the evaluated uncertainty limits are on the order of (3 to 9) kJ/mol.; DRB
Deltasub140.0 ± 1.3kJ/molGSVerevkin, 1999Based on data from 363. - 388. K.; AC
Deltasub151. ± 4.2kJ/molVKana'an, 1972, 2ALS
Deltasub151. ± 4.kJ/molTE,MEKana'an, 1972Based on data from 396. - 466. K. See also Pedley and Rylance, 1977.; AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
135.4 ± 1.3376.GSVerevkin, 1999Based on data from 363. - 383. K.; AC
143.3419.N/AStephenson and Malanowski, 1987Based on data from 404. - 466. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
48.28554.2DSCVerevkin, 1999AC

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.

Kana'an, 1972
Kana'an, Adli S., Sublimation pressures of tetraphenylmethane and associated bond energies, The Journal of Chemical Thermodynamics, 1972, 4, 6, 893-901, https://doi.org/10.1016/0021-9614(72)90011-0 . [all data]

Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H., Thermal Energy Studies I. Phenyl Derivatives of Methane, Ethane and Some Related Compounds, J. Am. Chem. Soc., 1931, 53, 3644. [all data]

Gomberg and Kamm, 1917
Gomberg, M.; Kamm, O., J. Am. Chem. Soc., 1917, 39, 2009. [all data]

Roux, Temprado, et al., 2008
Roux, M.V.; Temprado, M.; Chickos, J.S.; Nagano, Y., Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons, J. Phys. Chem. Ref. Data, 2008, 37, 4, 1855-1996. [all data]

Verevkin, 1999
Verevkin, Sergey P., Thermochemical Properties of Triphenylalkanes and Tetraphenylmethane. Strain in Phenyl Substituted Alkanes, J. Chem. Eng. Data, 1999, 44, 3, 557-562, https://doi.org/10.1021/je9802726 . [all data]

Kana'an, 1972, 2
Kana'an, A.S., Sublimation pressures of tetraphenylmethane and associated bond energies, J. Chem. Thermodyn., 1972, 4, 893. [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., , Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brighton, 1977. [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]


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