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1,2-Dibromotetrafluoroethane

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Condensed phase thermochemistry data

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References, Notes

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

Quantity Value Units Method Reference Comment
liquid299.4J/mol*KN/AKosarukina, Zhogin, et al., 1982 

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
173.8298.15Vesely, Zabransky, et al., 1988T = 298 to 318 K. Cp(J/mol*K) = 131.53 + 0.1420(T/K) (298 to 318 K).
170.8298.15Kosarukina, Zhogin, et al., 1982T = 8 to 300 K.

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

Quantity Value Units Method Reference Comment
Tboil320. ± 1.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus161.65KN/ARuff and Bretschneider, 1933Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Ttriple162.83KN/AKosarukina, Zhogin, et al., 1982, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc487.8KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap28.61kJ/molN/AMajer and Svoboda, 1985 
Deltavap28.5kJ/molAStephenson and Malanowski, 1987Based on data from 283. - 357. K.; AC
Deltavap28.4 ± 0.1kJ/molCMajer, Svoboda, et al., 1981AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
27.03320.3N/AMajer and Svoboda, 1985 
26.9369.AStephenson and Malanowski, 1987Based on data from 354. - 443. K.; AC
27.1455.AStephenson and Malanowski, 1987Based on data from 440. - 488. K.; AC
30.0280.N/AStephenson and Malanowski, 1987Based on data from 246. - 295. K. See also Dykyj, 1970.; AC
27.5 ± 0.1313.CMajer, Svoboda, et al., 1981AC
26.5 ± 0.1328.CMajer, Svoboda, et al., 1981AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kJ/mol) beta Tc (K) Reference Comment
298. - 328.44.460.2884487.8Majer and Svoboda, 1985 

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
7.04162.8Acree, 1991AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
7.0367162.83crystaline, IliquidKosarukina, Zhogin, et al., 1982DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
43.22162.83crystaline, IliquidKosarukina, Zhogin, et al., 1982DH

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:


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

Ethene, tetrafluoro- + Bromine = 1,2-Dibromotetrafluoroethane

By formula: C2F4 + Br2 = C2Br2F4

Quantity Value Units Method Reference Comment
Deltar-161.0kJ/molCmLacher, Casali, et al., 1956gas phase; Heat of bromination

1,2-Dibromotetrafluoroethane = Ethene, tetrafluoro- + Bromine

By formula: C2Br2F4 = C2F4 + Br2

Quantity Value Units Method Reference Comment
Deltar160.99kJ/molCmLacher, Casali, et al., 1956gas phase

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

IE (eV) Method Reference Comment
11.1PEChau and McDowell, 1976 
11.44 ± 0.01PEChau and McDowell, 1976Vertical value

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

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


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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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1992
NIST MS number 125435

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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

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References