Bromine

• Formula: Br₂
• Molecular weight: 159.808
• IUPAC Standard InChI: InChI=1S/Br2/c1-2 Copy

  
• IUPAC Standard InChIKey: GDTBXPJZTBHREO-UHFFFAOYSA-N Copy
• CAS Registry Number: 7726-95-6
• 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: Br2; Brom; Brome; Bromo; Broom; UN 1744; Dibromine
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 55
  • Gas phase ion energetics data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Condensed phase thermochemistry data

Go To: Top, Phase change data, References, Notes

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

Phase change data

Go To: Top, Condensed phase thermochemistry data, References, Notes

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

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

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes

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

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Weber, 1912
Weber, H.C.P., J. Am. Chem. Soc., 1912, 34, 1294. [all data]

Serullas, 1827
Serullas, New Compounds of Bromine. Ethyl Bromide ("Ether Hydro-Bromique"), and Cyanogen Bromide ("Cyanure de Brome"). Solidification of Bromine and of Bromform ("Hydro-carbure de Brome"), Ann. Chim. Phys., 1827, 34, 95. [all data]

Blair and Ihle, 1973
Blair, A.; Ihle, H., The thermal decomposition and thermodynamic properties of uranium pentabromide, Journal of Inorganic and Nuclear Chemistry, 1973, 35, 11, 3795-3803, https://doi.org/10.1016/0022-1902(73)80071-5 . [all data]

Fischer and Bingle, 1955
Fischer, Jack; Bingle, James, The Vapor Pressure of Bromine from 24 to 116° ¹, J. Am. Chem. Soc., 1955, 77, 24, 6511-6512, https://doi.org/10.1021/ja01629a026 . [all data]

Giauque and Wiebe, 1928
Giauque, W.F.; Wiebe, R., THE HEAT CAPACITY OF HYDROGEN BROMIDE FROM 15°K. TO ITS BOILING POINT AND ITS HEAT OF VAPORIZATION. THE ENTROPY FROM SPECTROSCOPIC DATA, J. Am. Chem. Soc., 1928, 50, 8, 2193-2202, https://doi.org/10.1021/ja01395a018 . [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]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, References

• Symbols used in this document:
  

  S°liquid	Entropy of liquid at standard conditions
  Tfus	Fusion (melting) point
  ΔvapH	Enthalpy of vaporization

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