1,1'-Biphenyl, 4,4'-difluoro-

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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil527.7KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus363.1KN/ASangster and Irvine, 1956Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Δsub21.8 ± 1.0kcal/molVSmith, Gorin, et al., 1964Corrected for CODATA value of ΔfH; ALS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Reference Comment
21.797298.15Saito, Atake, et al., 1986p = 0.5092 Pa, data from 64SMI/GOR.; DH

Entropy of vaporization

ΔvapS (cal/mol*K) Temperature (K) Reference Comment
72.9298.15Saito, Atake, et al., 1986p; DH

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]

Sangster and Irvine, 1956
Sangster, R.C.; Irvine, J.W., Study of Organic Scintillators, J. Chem. Phys., 1956, 24, 670. [all data]

Smith, Gorin, et al., 1964
Smith, N.K.; Gorin, G.; Good, W.D.; McCullough, J.P., The heats of combustion, sublimation, and formation of four dihalobiphenyls, J. Phys. Chem., 1964, 68, 940-946. [all data]

Saito, Atake, et al., 1986
Saito, K.; Atake, T.; Chihara, H., Thermodynamic studies of p-polyphenyls: heat capacity of 4,4'-difluorobiphenyl, J. Chem. Thermodynam., 1986, 18, 407-414. [all data]


Notes

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