Hydrogen bromide

• Formula: BrH
• Molecular weight: 80.912
• IUPAC Standard InChI: InChI=1S/BrH/h1H Copy

  
• IUPAC Standard InChIKey: CPELXLSAUQHCOX-UHFFFAOYSA-N Copy
• CAS Registry Number: 10035-10-6
• 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: Hydrobromic acid; Anhydrous hydrobromic acid; HBr; Hydrogen bromide, anhydrous-; Acide bromhydrique; Acido bromidrico; Bromowodor; Bromwasserstoff; Broomwaterstof; UN 1048; UN 1788; Hydrogen monobromide
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data (reactions 51 to 76)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data: reactions 1 to 50
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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.

Reactions 51 to 76

 +  =

By formula: HBr + C₈H₈ = C₈H₉Br

=  + 

By formula: C₄H₈Br₂ = HBr + C₄H₇Br

C₃H₉BrSn (cr) +  (l) = ( • 55) (solution) + C₃H₁₀OSn (cr)

By formula: C₃H₉BrSn (cr) + H₂O (l) = (HBr • 55H₂O) (solution) + C₃H₁₀OSn (cr)

2 +  =  + 

By formula: 2H₂ + C₂H₃Br = HBr + C₂H₆

 +  =  + 

By formula: H₂ + C₂H₅Br = HBr + C₂H₆

 +  =  + 

By formula: H₂ + CH₃Br = HBr + CH₄

=  + 

By formula: C₃H₆BrCl = HBr + C₃H₅Cl

=  + 

By formula: C₃H₆BrCl = HBr + C₃H₅Cl

=  + 

By formula: C₃H₆Br₂ = HBr + C₃H₅Br

=  + 

By formula: C₃H₆Br₂ = HBr + C₃H₅Br

 +  =  + 

By formula: CHCl₃ + Br₂ = HBr + CBrCl₃

 +  =  + 

By formula: CH₂F₂ + Br₂ = HBr + CHBrF₂

 +  =  + 

By formula: CHF₃ + Br₂ = HBr + CBrF₃

 +  =  + 

By formula: CHBr₃ + Br₂ = HBr + CBr₄

 +  =  + 

By formula: HBr + CBrF₃ = CHF₃ + Br₂

 +  =  + 

By formula: C₃H₇Br + H₂ = HBr + C₃H₈

 +  =  + 

By formula: CH₄ + Br₂ = HBr + CH₃Br

=  + 

By formula: C₅H₁₀Br₂ = HBr + C₅H₉Br

=  + 

By formula: C₅H₁₀Br₂ = HBr + C₅H₉Br

=  + 

By formula: C₅H₁₀Br₂ = HBr + C₅H₉Br

HBr⁺ +  = (HBr⁺ • )

By formula: HBr⁺ + HBr = (HBr⁺ • HBr)

 +  =  + 

By formula: HBr + CBrCl₃ = CHCl₃ + Br₂

=  + 

By formula: C₃H₇Br = HBr + C₃H₆

=  + 

By formula: C₂H₄Br₂ = HBr + C₂H₃Br

=  + 

By formula: C₂H₄Br₂ = HBr + C₂H₃Br

 +  =

By formula: HBr + C₄H₈ = C₄H₉Br

References

Go To: Top, Reaction thermochemistry data, Notes

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

Nesterova, Kovzel, et al., 1977
Nesterova, T.N.; Kovzel, E.N.; Karaseva, S.Ya.; Rozhnov, A.M., Heats of reaction of the hydrohalogenation of styrene and α-methylstyrene, Vses. Konf. Kalorim. Rasshir. Tezisy Dokl. 7th, 1977, 1, 132. [all data]

Levanova, Rozhnov, et al., 1975
Levanova, S.V.; Rozhnov, A.M.; Plaksina, T.V.; Anisimova, Z.I., Dehydrohalogenation of some dihalo derivatives of isobutane, Russ. J. Phys. Chem. (Engl. Transl.), 1975, 49, 1440-1441. [all data]

Baldwin, Lappert, et al., 1972
Baldwin, J.C.; Lappert, M.F.; Pedley, J.B.; Poland, J.S., J. Chem. Soc., Dalton Trans., 1972, 1943.. [all data]

Lacher, Kianpour, et al., 1957
Lacher, J.R.; Kianpour, A.; Montgomery, P.; Knedler, H.; Park, J.D., Reaction heats of organic halogen compounds. IX. The catalytic hydrogenation of vinyl and perfluorovinyl bromide, J. Phys. Chem., 1957, 61, 1125-1126. [all data]

Fowell, Lacher, et al., 1965
Fowell, P.; Lacher, J.R.; Park, J.D., Reaction heats of organic compounds. Part 3.-Heats of hydrogenation of methyl bromide and ethyl bromide, Trans. Faraday Soc., 1965, 61, 1324-1327. [all data]

Levanova, Rodova, et al., 1983
Levanova, S.V.; Rodova, R.M.; Tereshkina, T.P.; Zabrodina, T.I., Thermocatalytic reactions of bromochloropropanes, Russ. J. Phys. Chem. (Engl. Transl.), 1983, 57, 1142-1146. [all data]

Mendenhall, Golden, et al., 1973
Mendenhall, G.D.; Golden, D.M.; Benson, S.W., Thermochemistry of the bromination of carbon tetrachloride and the heat of formation of carbon tetrachloride, J. Phys. Chem., 1973, 77, 2707-2709. [all data]

Okafo and Whittle, 1974
Okafo, E.N.; Whittle, E., Bond dissociation energies from equilibrium studies. Part 5.-The equilibria Br₂ + CH₂F₂ = HBr + CHF₂Br and Br₂ + CH₃F = HBr + CH₂FBr. Determination of D(CHF₂-Br) and ΔH°f (CHF₂Br,g), Trans. Faraday Soc., 1974, 17, 1366-1375. [all data]

Corbett, Tarr, et al., 1963
Corbett, P.; Tarr, A.M.; Whittle, E., Vapour-phase bromination of fluoroform and methane, Trans. Faraday Soc., 1963, 59, 1609. [all data]

King, Golden, et al., 1971
King, K.D.; Golden, D.M.; Benson, S.W., Kinetics and thermochemistry of the gas-phase bromination of bromoform. The C-H bond dissociation energy in CHBr₃ and the C-Br bond dissociation energy in CBr₄, J. Phys. Chem., 1971, 75, 987-989. [all data]

Coomber and Whittle, 1967
Coomber, J.W.; Whittle, E., Bond dissociation energies from equilibrium studies. Part 1.-D(CF₃-Br), D(C₂F₅-Br) and D(n-C₃F₇-Br), Trans. Faraday Soc., 1967, 63, 608-619. [all data]

Davies, Lacher, et al., 1965
Davies, J.; Lacher, J.R.; Park, J.D., Reaction heats of organic compounds. Part 4.-Heats of hydrogenation of n- and iso-Propyl bromides and chlorides, Trans. Faraday Soc., 1965, 61, 2413-2416. [all data]

Ferguson, Okafo, et al., 1973
Ferguson, K.C.; Okafo, E.N.; Whittle, E., Bond dissociation energies from equilibrium studies Part 4.-The equilibrium Br₂ + CH₄ = HBr + CH₃Br. Determination of D(CH₃-Br) and ΔH_f°(CH₃Br,g), J. Chem. Soc. Faraday Trans. 1, 1973, 69, 295-301. [all data]

Meged, Levanova, et al., 1980
Meged, V.M.; Levanova, S.V.; Rozhnov, A.M., Dehydrohalogenation of dihalomethylbutanes. 2., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1980, 23, 149-151. [all data]

Tiedemann, Anderson, et al., 1979
Tiedemann, P.W.; Anderson, S.L.; Ceyer, S.T.; Hirooka, T.; Ng, C.Y.; Mahan, B.H.; Lee, Y.T., Proton affinities of hydrogen halides determined by the molecular beam photoionization method, J. Chem. Phys., 1979, 71, 605. [all data]

Sullivan and Davidson, 1951
Sullivan, J.H.; Davidson, N., The kinetics of the forward and reverse reactions for the vapor phase thermal bromination of chloroform, J. Chem. Phys., 1951, 19, 143-148. [all data]

Rozhnov and Andreevskii, 1962
Rozhnov, A.M.; Andreevskii, D.N., Equilibrium in the system propene, hydrogen bromide, bromopropane, Dokl. Akad. Nauk SSSR, 1962, 147, 388-391. [all data]

Levanova, Rozhnov, et al., 1970
Levanova, S.V.; Rozhnov, A.M.; Sedov, S.M.; Starkov, V.Ya.; Manzohos, V.N., Equilibrium reactions of dibromoethane, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1970, 13, 62-65. [all data]

Howlett, 1957
Howlett, K.E., The use of equilibrium constants to calculate thermodynamic quantities. Part III. Equilibria in the system tert.-butyl bromideisobutene-hydrogen bromide, J. Chem. Soc., 1957, 2834-2836. [all data]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

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