Reactions of the HO2 radical in aqueous solution with bromine and related compounds
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 68, 1498-1507
- https://doi.org/10.1039/f19726801498
Abstract
A flow system has been used to produce HO2 in concentrations up to 38 µM by the radiolysis of oxygen saturated aqueous formate solutions. Rate constants for the following reactions have been obtained by competitive studies, relative to the known rate of reaction of O– 2 with tetranitromethane: HO2+ Br2→ H++ O2+ Br– 2k=(1.1+0.6 –0.4)× 108 M–1 s–1, O– 2+ Br2→ O2+ Br– 2k=(5.6 ± 0.7)× 109 M–1 s–1, HO2+ Br– 3→ H++ O2+ Br–+ Br– 2k < 107 M–1 s–1, O– 2+ Br– 3→ O2+ Br–+ Br– 2k=(3.8 ± 0.7)× 109 M–1 s–1, O– 2+ HOBr → OH–+ O2+ Br k=(9.5 ± 0.8)× 108 M–1 s–1Keywords
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