Ethane, 1-chloro-1,1-difluoro-

• Formula: C₂H₃ClF₂
• Molecular weight: 100.495
• IUPAC Standard InChI: InChI=1S/C2H3ClF2/c1-2(3,4)5/h1H3 Copy

  
• IUPAC Standard InChIKey: BHNZEZWIUMJCGF-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-68-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: α-Chloroethylidene fluoride; Freon 142; Freon 142b; FC 142b; Genetron 101; Genetron 142b; R 142b; 1-Chloro-1,1-Difluoroethane; 1,1-Difluoro-1-chloroethane; CH3CF2Cl; CFC 142b; Chloroethylidene fluoride; Fluorocarbon FC142b; Gentron 142B; Hydrochlorofluorocarbon 142b; UN 2517; Dymel 142; F 142b; HCFC 142b; Propellant 142b
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Henry's Law data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • Fluid Properties
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

Gas phase ion energetics 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

References

Go To: Top, Phase change data, Gas phase ion energetics data, Notes

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

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Henne and Renoll, 1936
Henne, A.L.; Renoll, M.W., J. Am. Chem. Soc., 1936, 58, 889. [all data]

Blanke and Weiss, 1991
Blanke, W.; Weiss, R., Thermodynamic properties of refrigerants. Part I: the triple points of the refrigerants R11, R12, R22, R142b, and 152a, PTB-Mitt., 1991, 101, 337-9. [all data]

Perlick, 1937
Perlick, A., Calorimetric investigations on dichloromethane, difluoromonochloroethane and tetrafluorodichloroethane, Bull. Inst. Int. Froid., 1937, 18, 4, A-1. [all data]

Sako, Sato, et al., 1996
Sako, T.; Sato, M.; Nakazawa, N.; Oowa, M.; Yasumoto, M.; Ito, H.; Yamashita, S., Critical Properties of Fluorinated Ethers, J. Chem. Eng. Data, 1996, 41, 802-805. [all data]

Fukushima and Watanabe, 1992
Fukushima, M.; Watanabe, N., Thermodynamic properties of HCFC-142b (1-chloro-1,1-difluoroethane), Nippon Reito Kyokai Ronbunshu, 1992, 9, 247-55. [all data]

Yada, Kumagai, et al., 1991
Yada, N.; Kumagai, K.; Tamatsu, T.; Sato, H.; Watanabe, K., Measurements of the Thermodynamic Properties of HCFC 142b, J. Chem. Eng. Data, 1991, 36, 12-14. [all data]

Cherneeva, 1958
Cherneeva, L.I., Experimental Investigation into the Thermodynamic Properties of Freon-142, Teploenergetika (Moscow), 1958, 5, 7, 38. [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]

Tanikawa, Tatoh, et al., 1992
Tanikawa, S.; Tatoh, J.; Maezawa, Y.; Sato, H.; Watanabe, K., Vapor-liquid coexistence curve and the critical parameters of 1-chloro-1,1- difluoroethane (HCFC-142b), J. Chem. Eng. Data, 1992, 37, 74-6. [all data]

Chae, Schmidt, et al., 1990
Chae, H.B.; Schmidt, J.W.; Moldover, M.R., Alternative refrigerants R123a, R134, R141b, R142b, and R152a: critical temperature, refractive index, surface tension, and estimates of liquid, vapor, and critical densities, J. Phys. Chem., 1990, 94, 8840-5. [all data]

Silva and Weber, 1993
Silva, Alberto M.; Weber, Lloyd A., Ebulliometric measurement of the vapor pressure of 1-chloro-1,1-difluoroethane and 1,1-difluoroethane, J. Chem. Eng. Data, 1993, 38, 4, 644-646, https://doi.org/10.1021/je00012a043 . [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]

Dykyj, 1970
Dykyj, J., Petrochemica, 1970, 10, 2, 51. [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]

Perlick, 1937, 2
Perlick, A., Calorimetric investigations on dichloromethane, difluoromonochloroethane and tetrafluorodichloroethane, Bull. Int. Inst. Refrig., 1937, 18, 1-9. [all data]

Perlick, 1937, 3
Perlick, A., Kalorimetrische Messungen an Schwefeldioxyd, Methylenchlorid, Difluormonochloraethan und Tetrafluordichloraethan, Z. ges. Kalt-Ind., 1937, 44, 201-206. [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]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Doucet, Sauvageau, et al., 1975
Doucet, J.; Sauvageau, P.; Sandorfy, C., Photoelectron far-ultraviolet absorption spectra of chlorofluoro derivatives of ethane, J. Chem. Phys., 1975, 62, 355. [all data]

Notes

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• Symbols used in this document:
  

  Pc	Critical pressure
  Ptriple	Triple point pressure
  Tboil	Boiling point
  Tc	Critical temperature
  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ρc	Critical density

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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