Oscillatory System I−, H2O2, HClO4: The Modified Form of the Bray−Liebhafsky Reaction

The kinetics of iodide ions oxidation with hydrogen peroxide in solutions of perchloric acid at temperature of 60 °C has been studied in detail. We have found conditions under which this reaction proceeds oscillatory. The Bray−Liebhafsky (BL) oscillatory reaction started by the oxidation of iodide i...

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Bibliographic Details
Published in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2010-07, Vol.114 (26), p.7026-7029
Main Authors: Olexová, Anna, Mrákavová, Marta, Melicherčík, Milan, Treindl, L’udovít
Format: Article
Language:English
Subjects:
A: Kinetics, Spectroscopy
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Summary:The kinetics of iodide ions oxidation with hydrogen peroxide in solutions of perchloric acid at temperature of 60 °C has been studied in detail. We have found conditions under which this reaction proceeds oscillatory. The Bray−Liebhafsky (BL) oscillatory reaction started by the oxidation of iodide ions with hydrogen peroxide is described for the first time. The described results support our assumption (Olexová, A.; Mrákavová, M.; Melicherčík, M.; Treindl, L. Collect. Czech. Chem. Commun. 2006, 71, 91−106) that singlet oxygen (1O2) is an important intermediate of the BL oscillatory reaction in the sense of the Noyes−Treindl (N−T) skeleton mechanism (Treindl, L.; Noyes, R.M. J. Phys. Chem. 1993, 97, 11354−11362).
ISSN:1089-5639
1520-5215
DOI:10.1021/jp1024284