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:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed 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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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:
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

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

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, Phase change data, References

• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔvapH	Enthalpy of vaporization

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