Ethane, 1,1,2,2-tetrachloro-1,2-difluoro-

• Formula: C₂Cl₄F₂
• Molecular weight: 203.830
• IUPAC Standard InChI: InChI=1S/C2Cl4F2/c3-1(4,7)2(5,6)8 Copy

  
• IUPAC Standard InChIKey: UGCSPKPEHQEOSR-UHFFFAOYSA-N Copy
• CAS Registry Number: 76-12-0
• 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: s-Tetrachlorodifluoroethane; F-112; Freon R 112; Freon 112; Genetron 112; Tetrachloro-1,2-Difluoroethane; Ucon 112; 1,1,2,2-Tetrachloro-1,2-difluoroethane; 1,2-Difluoro-1,1,2,2-tetrachloroethane; CFCl2CFCl2; 1,1,2,2-Tetrachlorodifluoroethane; Difluorotetrachloroethane; 1,2-Difluorotetrachloroethane; Ethane, 1,2-difluoro-1,1,2,2-tetrachloro-; FC 112; Halocarbon 112; Refrigerant 112; sym-Tetrachlorodifluoroethane; Daiflon 112; R 112; Daiflon S2
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Condensed 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

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

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

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)

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

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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• GAS; DIGILAB FTS-14; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)
  2, 4 cm^-1 resolution

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Kishimoto, Suga, et al., 1978
Kishimoto, K.; Suga, H.; Seki, S., Calorimetri study of the glassy state. XIV. Calorimetric study on unusual glass transition phenomena in CFCl₂-CFCl₂, Bull. Chem. Soc. Jpn., 1978, 51, 1691-1696. [all data]

Kosarukina, Kolesov, et al., 1978
Kosarukina, E.A.; Kolesov, V.P.; Vorob'ev, V.N.; Vogel, L., The heat capacity of 1,1,2,2-tetrachloro-1,2-difluoroethane in the temperature range 12-310 K, Zhur. Fiz. Khim., 1978, 52, 509. [all data]

Yarrington and Kay, 1957
Yarrington, R.M.; Kay, W.B., The liquid specific heats of some fluorocarbon compounds, J. Phys. Chem., 1957, 61, 1259-1260. [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]

Yarrington and Kay, 1957, 2
Yarrington, R.M.; Kay, W.B., The Liquid Specific Heats of Some Fluorocarbon Compounds, J. Phys. Chem., 1957, 61, 1259. [all data]

Miller and Dittman, 1956
Miller, W.T.; Dittman, A.L., The MEchanism of Fluorination I. Fluorine Sensitized Oxidation of Trichlro- and Tetrachloroethylene, J. Am. Chem. Soc., 1956, 78, 2793-7. [all data]

Kishimoto, Suga, et al., 1978, 2
Kishimoto, K.; Suga, H.; Seki, S., Calorimetric study of the glassy state. XIV. calorimetric study on unusual glass transition pehenomena in CFCl2-CFCl2, Bull. Chem. SOc. Jpn., 1978, 51%, 1691-6. [all data]

Varushchenko, Druzhinina, et al., 2007
Varushchenko, R.M.; Druzhinina, A.I.; Kuramshina, G.M.; Dorofeeva, O.V., Thermodynamics of vaporization of some freons and halogenated ethanes and propanes, Fluid Phase Equilibria, 2007, 256, 1-2, 112-122, https://doi.org/10.1016/j.fluid.2007.02.017 . [all data]

Varushchenko and Bulgakova, 1976
Varushchenko, R.M.; Bulgakova, L.L., Tr. Khim. Khim. Tekhnol., 1976, 3, 29. [all data]

Hovorka and Geiger, 1933
Hovorka, Frank; Geiger, Francis E., Thermodynamic Properties of Trifluorotrichloroethane and Difluorotetrachloroethane, J. Am. Chem. Soc., 1933, 55, 12, 4759-4761, https://doi.org/10.1021/ja01339a004 . [all data]

Svoboda, Kubes, et al., 1992
Svoboda, V.; Kubes, V.; Basarova, P., Enthalpies of vaporization and cohesive energies of 1,1,2,2-tetrachloro-1,2-difluoroethane, 1,2-dibromoethane, 1-bromo-2-chloroethane, 1,3-dibromo-propane, and 1,4-dibromo-2,3-dichloro-1,1,2,3,4,4-hexafluorobutane, J. Chem. Thermodyn., 1992, 24, 555-558. [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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Dumas, Dupuis, et al., 1981
Dumas, J.-M.; Dupuis, P.; Pfister-Guillouzo, G.; Sandorfy, C., Ionization potentials and ultraviolet absorption spectra of fluorocarbon anesthetics, Can. J. Spectrosc., 1981, 26, 102. [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Ttriple	Triple point temperature
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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