Ethene, 1,1-difluoro-

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Gas phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-82.2 ± 2.4kcal/molCcbKolesov, Martynov, et al., 1962Reanalyzed by Cox and Pilcher, 1970, Original value = -79.6 ± 2.4 kcal/mol
Δfgas-77.7 ± 0.8kcal/molCcrNeugebauer and Margrave, 1957 
Δfgas-79.83 ± 0.20kcal/molCcbNeugebauer and Margrave, 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -77.5 ± 0.8 kcal/mol
Quantity Value Units Method Reference Comment
Δcgas-259.8 ± 2.4kcal/molCcbKolesov, Martynov, et al., 1962 
Δcgas-262.2 ± 0.8kcal/molCcbNeugebauer and Margrave, 1956 

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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil190.KN/APCR Inc., 1990BS
Tboil190.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tc302.74KN/ATsiklis and Prokhorov, 1967TRC
Tc303.25KN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 0.7 K; by sealed tube method; TRC
Quantity Value Units Method Reference Comment
Pc43.7534atmN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 1.0888 atm; from vapor pressure equation at Tc; TRC
Quantity Value Units Method Reference Comment
ρc6.40mol/lN/ATsiklis and Prokhorov, 1967Vis in pVT apparatus, Khodeeva and Lebedeva Russ. J. Phys. Chem. 1966, 40, 1668.; TRC
ρc6.51mol/lN/AMears, Stahl, et al., 1955Uncertainty assigned by TRC = 0.23 mol/l; rectilinear diameters; TRC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
3.15233.BGMears, Stahl, et al., 1955, 2AC
2.3273.BGMears, Stahl, et al., 1955, 2AC

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:


Henry's Law 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 by: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
0.0025 QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species.

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Kolesov, Martynov, et al., 1962
Kolesov, V.P.; Martynov, A.M.; Shtekher, S.M.; Skuratov, S.M., Standard enthalpies of formation of 1,1-difluoroethylene and of trifluoroethylene, Russ. J. Phys. Chem. (Engl. Transl.), 1962, 36, 1118-1120. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Neugebauer and Margrave, 1957
Neugebauer, C.A.; Margrave, J.L., Heats of formation of the fluoromethanes and fluoroethylenes, Tech. Rept., 1957, 1-45. [all data]

Neugebauer and Margrave, 1956
Neugebauer, C.A.; Margrave, J.L., The heats of formation of tetrafluoroethylene, tetrafluoromethane and 1,1-difluoroethylene, J. Phys. Chem., 1956, 60, 1318-1321. [all data]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [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]

Tsiklis and Prokhorov, 1967
Tsiklis, D.S.; Prokhorov, V.M., Phase equilibria in systems containing fluorine compounds, Zh. Fiz. Khim., 1967, 41, 2195-9. [all data]

Mears, Stahl, et al., 1955
Mears, W.H.; Stahl, R.F.; Orfeo, S.R.; Shair, R.C.; Kells, L.F.; Thompson, W.; McCann, H., Thermodynamic Properties of Halogenated Ethanes and Ethylenes, Ind. Eng. Chem., 1955, 47, 1449. [all data]

Mears, Stahl, et al., 1955, 2
Mears, Whitney H.; Stahl, Richard F.; Orfeo, S. Robert; Shair, Robert C.; Kells, Lyman F.; Thompson, Walter; McCann, Harold, Thermodynamic Properties of Halogenated Ethanes and Ethylenes, Ind. Eng. Chem., 1955, 47, 7, 1449-1454, https://doi.org/10.1021/ie50547a052 . [all data]


Notes

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