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Hydrogen bromide

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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

Hydrogen bromide + Styrene = Benzene, (1-bromoethyl)-

By formula: HBr + C8H8 = C8H9Br

Quantity Value Units Method Reference Comment
Deltar-69.0 ± 7.1kJ/molCmNesterova, Kovzel, et al., 1977liquid phase; Hydrobromination; ALS

Propane, 1,2-dibromo-2-methyl- = Hydrogen bromide + 1-Bromo-2-methylpropene

By formula: C4H8Br2 = HBr + C4H7Br

Quantity Value Units Method Reference Comment
Deltar75.3kJ/molCmLevanova, Rozhnov, et al., 1975gas phase; Dehydrohalogenation; ALS

C3H9BrSn (cr) + Water (l) = (Hydrogen bromide bullet 55Water) (solution) + C3H10OSn (cr)

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

Quantity Value Units Method Reference Comment
Deltar-10.0 ± 0.8kJ/molRSCBaldwin, Lappert, et al., 1972MS

2Hydrogen + Vinyl bromide = Hydrogen bromide + Ethane

By formula: 2H2 + C2H3Br = HBr + C2H6

Quantity Value Units Method Reference Comment
Deltar-199.2 ± 1.9kJ/molChydLacher, Kianpour, et al., 1957gas phase; ALS

Hydrogen + Ethyl bromide = Hydrogen bromide + Ethane

By formula: H2 + C2H5Br = HBr + C2H6

Quantity Value Units Method Reference Comment
Deltar-59.0 ± 1.1kJ/molChydFowell, Lacher, et al., 1965gas phase; ALS

Hydrogen + Methane, bromo- = Hydrogen bromide + Methane

By formula: H2 + CH3Br = HBr + CH4

Quantity Value Units Method Reference Comment
Deltar-73.6 ± 1.4kJ/molChydFowell, Lacher, et al., 1965gas phase; ALS

Propane, 2-bromo-1-chloro- = Hydrogen bromide + 1-Propene, 1-chloro-

By formula: C3H6BrCl = HBr + C3H5Cl

Quantity Value Units Method Reference Comment
Deltar75.4kJ/molEqkLevanova, Rodova, et al., 1983liquid phase; Flow reactor; ALS

2-bromo-2-chloropropane = Hydrogen bromide + 1-Propene, 2-chloro-

By formula: C3H6BrCl = HBr + C3H5Cl

Quantity Value Units Method Reference Comment
Deltar66.2kJ/molEqkLevanova, Rodova, et al., 1983liquid phase; Flow reactor; ALS

Propane, 1,2-dibromo- = Hydrogen bromide + Isopropenyl bromide

By formula: C3H6Br2 = HBr + C3H5Br

Quantity Value Units Method Reference Comment
Deltar63.6kJ/molEqkLevanova, Rodova, et al., 1983liquid phase; Flow reactor; ALS

Propane, 1,2-dibromo- = Hydrogen bromide + 1-Propene, 1-bromo-

By formula: C3H6Br2 = HBr + C3H5Br

Quantity Value Units Method Reference Comment
Deltar77.0kJ/molEqkLevanova, Rodova, et al., 1983liquid phase; Flow reactor; ALS

Trichloromethane + Bromine = Hydrogen bromide + Methane, bromotrichloro-

By formula: CHCl3 + Br2 = HBr + CBrCl3

Quantity Value Units Method Reference Comment
Deltar-5.9 ± 0.4kJ/molEqkMendenhall, Golden, et al., 1973gas phase; ALS

Difluoromethane + Bromine = Hydrogen bromide + Methane, bromodifluoro-

By formula: CH2F2 + Br2 = HBr + CHBrF2

Quantity Value Units Method Reference Comment
Deltar-39.9 ± 0.3kJ/molEqkOkafo and Whittle, 1974gas phase; ALS

Fluoroform + Bromine = Hydrogen bromide + Bromotrifluoromethane

By formula: CHF3 + Br2 = HBr + CBrF3

Quantity Value Units Method Reference Comment
Deltar-14.kJ/molEqkCorbett, Tarr, et al., 1963gas phase; At 298 K; ALS

Methane, tribromo- + Bromine = Hydrogen bromide + Carbon tetrabromide

By formula: CHBr3 + Br2 = HBr + CBr4

Quantity Value Units Method Reference Comment
Deltar-7. ± 3.kJ/molEqkKing, Golden, et al., 1971gas phase; ALS

Hydrogen bromide + Bromotrifluoromethane = Fluoroform + Bromine

By formula: HBr + CBrF3 = CHF3 + Br2

Quantity Value Units Method Reference Comment
Deltar19.2 ± 1.0kJ/molEqkCoomber and Whittle, 1967gas phase; ALS

Propane, 1-bromo- + Hydrogen = Hydrogen bromide + Propane

By formula: C3H7Br + H2 = HBr + C3H8

Quantity Value Units Method Reference Comment
Deltar-56.78kJ/molChydDavies, Lacher, et al., 1965gas phase; ALS

Methane + Bromine = Hydrogen bromide + Methane, bromo-

By formula: CH4 + Br2 = HBr + CH3Br

Quantity Value Units Method Reference Comment
Deltar-26.4 ± 0.7kJ/molEqkFerguson, Okafo, et al., 1973gas phase; ALS

1,2-Dibromo-2-methylbutane = Hydrogen bromide + 2-Butene, 1-bromo-2-methyl-

By formula: C5H10Br2 = HBr + C5H9Br

Quantity Value Units Method Reference Comment
Deltar77.4 ± 6.3kJ/molEqkMeged, Levanova, et al., 1980gas phase; ALS

Butane, 1,2-dibromo-3-methyl- = Hydrogen bromide + 2-Butene, 1-bromo-3-methyl-

By formula: C5H10Br2 = HBr + C5H9Br

Quantity Value Units Method Reference Comment
Deltar72. ± 2.kJ/molEqkMeged, Levanova, et al., 1980gas phase; ALS

2,3-dibromo-2-methylbutane = Hydrogen bromide + 2-bromo-3-methyl-2-butene

By formula: C5H10Br2 = HBr + C5H9Br

Quantity Value Units Method Reference Comment
Deltar74. ± 2.kJ/molEqkMeged, Levanova, et al., 1980gas phase; ALS

HBr+ + Hydrogen bromide = (HBr+ bullet Hydrogen bromide)

By formula: HBr+ + HBr = (HBr+ bullet HBr)

Quantity Value Units Method Reference Comment
Deltar96.kJ/molPITiedemann, Anderson, et al., 1979gas phase; M

Hydrogen bromide + Methane, bromotrichloro- = Trichloromethane + Bromine

By formula: HBr + CBrCl3 = CHCl3 + Br2

Quantity Value Units Method Reference Comment
Deltar5.9kJ/molKinSullivan and Davidson, 1951gas phase; ALS

Propane, 2-bromo- = Hydrogen bromide + Propene

By formula: C3H7Br = HBr + C3H6

Quantity Value Units Method Reference Comment
Deltar81. ± 2.kJ/molEqkRozhnov and Andreevskii, 1962gas phase; ALS

Ethane, 1,1-dibromo- = Hydrogen bromide + Vinyl bromide

By formula: C2H4Br2 = HBr + C2H3Br

Quantity Value Units Method Reference Comment
Deltar70. ± 3.kJ/molEqkLevanova, Rozhnov, et al., 1970gas phase; ALS

Ethane, 1,2-dibromo- = Hydrogen bromide + Vinyl bromide

By formula: C2H4Br2 = HBr + C2H3Br

Quantity Value Units Method Reference Comment
Deltar80. ± 2.kJ/molEqkLevanova, Rozhnov, et al., 1970gas phase; ALS

Hydrogen bromide + 1-Propene, 2-methyl- = Propane, 2-bromo-2-methyl-

By formula: HBr + C4H8 = C4H9Br

Quantity Value Units Method Reference Comment
Deltar-78.868kJ/molEqkHowlett, 1957gas phase; ALS

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 «alpha»-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 «DELTA»H°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 «DELTA»Hf°(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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