1,2-Dibromotetrafluoroethane

• Formula: C₂Br₂F₄
• Molecular weight: 259.823
• IUPAC Standard InChI: InChI=1S/C2Br2F4/c3-1(5,6)2(4,7)8 Copy

  
• IUPAC Standard InChIKey: KVBKAPANDHPRDG-UHFFFAOYSA-N Copy
• CAS Registry Number: 124-73-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Ethane, 1,2-dibromo-1,1,2,2-tetrafluoro-; Ethane, 1,2-dibromotetrafluoro-; s-Dibromotetrafluoroethane; F-114B2; Freon 114B2; Halon 2402; 1,2-Dibromo-1,1,2,2-tetrafluoroethane; 1,2-Dibromoperfluoroethane; (CF2Br)2; Fluorocarbon 114B2; sym-Dibromotetrafluoroethane; FC 114B2; Fluobrene; Khladon 114B2; R 114B2; Daiflon 114B2; 76199-55-8; 1,2-Dibromo tetrafluoro methane
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
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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

Enthalpy of vaporization

Δ_vapH = A exp(-βT_r) (1 − T_r)^β
    Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    T_r = reduced temperature (T / T_c)

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Enthalpy of fusion

Enthalpy of phase transition

Entropy of phase transition

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  =

By formula: C₂F₄ + Br₂ = C₂Br₂F₄

=  + 

By formula: C₂Br₂F₄ = C₂F₄ + Br₂

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.

• SOLUTION (10% CCl4 FOR 5000-1330, 10% CS2 FOR 1330-625 CM^-1); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 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, Reaction thermochemistry 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.

Kosarukina, Zhogin, et al., 1982
Kosarukina, E.A.; Zhogin, D.Yu.; Kolesov, V.P.; Kuramshina, G.M.; Pentin, Yu.A.; Izmest'ev, I.V.; Danilov, A.V., Heat capacity in the range 8-300 K, thermodynamic functions, and conformational isomerism of 1,2-dibromotetrafluoroethane, Zhur. Fiz. Khim., 1982, 56, 1892-1896. [all data]

Vesely, Zabransky, et al., 1988
Vesely, F.; Zabransky, M.; Barcal, P.; Svoboda, V., Molar heat capacities of four liquid fluorinated and halogenated ethanes, J. Chem. Thermodynam., 1988, 20, 1283-1285. [all data]

Ruff and Bretschneider, 1933
Ruff, O.; Bretschneider, O., The Preparation of Hexafluoroethane and Tetrafluoroethene from Tetrafluoromethane, Z. Anorg. Allg. Chem., 1933, 210, 173. [all data]

Kosarukina, Zhogin, et al., 1982, 2
Kosarukina, E.A.; Zhogin, D.Yu.; Kolesov, V.P.; Kuramshina, G.M.; Pentin, Y.A.; Izmest'ev, I.V., Heat capacity in the range 8-300 K, thermodyn. functions, and conformational isomerism of 1,2-dibromotetrafluoroethane, Zh. Fiz. Khim., 1982, 56, 1892. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]

Majer, Svoboda, et al., 1981
Majer, Vladimír; Svoboda, Václav; Posta, Antonín; Pick, Jirí, Determination of heats of vaporization and some other thermodynamic quantities for three fluorinated halogen ethanes, Collect. Czech. Chem. Commun., 1981, 46, 4, 817-822, https://doi.org/10.1135/cccc19810817 . [all data]

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

Lacher, Casali, et al., 1956
Lacher, J.R.; Casali, L.; Park, J.D., Reaction heats of organic halogen compounds V. The vapor phase bromination of tetrafluoroethylene and trifluorochloroethylene, J. Phys. Chem., 1956, 60, 608-610. [all data]

Chau and McDowell, 1976
Chau, F.T.; McDowell, C.A., Photoelectron spectra of 1,2-dibromo-1,1-difluoroethane, 1,2-bromochloroethane, and 1,2-dichloro-, 1,2-dibromo-, and 1,2-diiodotetrafluoroethane, J. Phys. Chem., 1976, 80, 2923. [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
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfusH	Enthalpy of fusion
  ΔrH°	Enthalpy of reaction at standard conditions
  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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