Iron-catalysed oxidation of bisulphite aqueous solution: Evidence for a free radical chain mechanism
1994; Elsevier BV; Volume: 28; Issue: 15 Linguagem: Inglês
10.1016/1352-2310(94)90405-7
ISSN1873-2844
AutoresJosef Ziajka, Frank Beer, Peter Warneck,
Tópico(s)Water Quality Monitoring and Analysis
ResumoBenzene and tertiary butanol have been used as radical scavengers to demonstrate the occurrence of sulphate radicals in the iron ion-catalysed autoxidation of bisulphite in aqueous solution. Ferric ions are rapidly reduced to ferrous ions by HSO3− and a steady state is established between both iron species for some time. A detailed reaction mechanism is presented. Computer simulations show that it can account for the essential features of the reaction.
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