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2,2-Bis(fluoromethyl)-1,3-difluoropropane

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

Quantity Value Units Method Reference Comment
Tfus362.KN/AMurrill, Whitehead, et al., 1972Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Ttriple367.06KN/ATrowbridge and Westrum, 1964Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
1.23367.4Domalski and Hearing, 1996AC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.229367.43crystaline, IliquidTrowbridge and Westrum, 1964, 2DH
3.1573249.40crystaline, IIcrystaline, IWestrum, 1959Lambda transition, no details.; DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
3.344367.43crystaline, IliquidTrowbridge and Westrum, 1964, 2DH
12.7249.40crystaline, IIcrystaline, IWestrum, 1959Lambda; 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.

Murrill, Whitehead, et al., 1972
Murrill, E.; Whitehead, M.E.; Breed, L., Solid-solid phase transition determined by differential scanning calori- meter, Thermochim. Acta, 1972, 3, 311. [all data]

Trowbridge and Westrum, 1964
Trowbridge, J.C.; Westrum, E.F., Heat capacities and thermodynamic properties of globular molecules X. Fusion of pentaerythrityl fluoride, J. Phys. Chem., 1964, 68, 255-8. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Trowbridge and Westrum, 1964, 2
Trowbridge, J.C.; Westrum, E.F., Jr., Heat capacities and thermodynamic properties of globular molecules. X. Fusion of pentaerythrityl fluoride, J. Phys. Chem., 1964, 68, 255-258. [all data]

Westrum, 1959
Westrum, E.F., Jr., Ordering transitions in symmetrical molecules, Symp. Thermodynam. Fritens-Wattens, Tirol Austria, 1959, No.36, 11p. [all data]


Notes

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