1,1,1,2-Tetraphenylethane

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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
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus417.KN/ABrewster, Patterson, et al., 1954Uncertainty assigned by TRC = 2. K; TRC
Tfus416.75KN/ASmith and Andrews, 1931Uncertainty assigned by TRC = 0.3 K; m.p. with /Hg thermometer; TRC
Tfus414.25KN/ASmith and Andrews, 1931Uncertainty assigned by TRC = 0.5 K; f.p. with thermocouple; TRC
Quantity Value Units Method Reference Comment
Δsub133.kJ/molVBeckhaus, Dogan, et al., 1990ALS
Δsub132.0kJ/molN/ABeckhaus, Dogan, et al., 1990DRB
Δsub132.6 ± 2.1kJ/molGSBeckhaus, Dogan, et al., 1990AC

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
551.70.028Weast and Grasselli, 1989BS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
126.4 ± 1.7434.HSABeynon and Nicholson, 2002AC
128.7 ± 2.1370.GSBeckhaus, Dogan, et al., 1990Based on data from 340. - 400. K.; AC

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.

Brewster, Patterson, et al., 1954
Brewster, J.H.; Patterson, J.W.; Fidler, D.A., Reductions at Metal Surfaces III. Clemensen Reduction of Some Sterically- hindered Ketones, J. Am. Chem. Soc., 1954, 76, 6368. [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]

Beckhaus, Dogan, et al., 1990
Beckhaus, H.D.; Dogan, B.; Schaetzer, J.; Hellmann, S.; Ruchardt, C., Thermische stabilitat und bildungsenthalpie von 1,2,2,2- und 1,1,1,2- tetraphenylethan. - Die stabilisierungsenergien von benzhydryl- und triphenylmethyl-radikalen, Chem. Ber., 1990, 123, 137-144. [all data]

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]

Beynon and Nicholson, 2002
Beynon, J.H.; Nicholson, G.R., A radioactive ionization gauge and its application to the measurement of latent heat of vaporization, J. Sci. Instrum., 2002, 33, 10, 376-380, https://doi.org/10.1088/0950-7671/33/10/302 . [all data]


Notes

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