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Kinetics of osmium(VIII) catalyzed oxidation of allyl alcohol by potassium bromate in aqueous acidic medium-autocatalysis in catalysis

✍ Scribed by S. M. Desai; N. N. Halligudi; S. T. Nandibewoor

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 139 KB
Volume: 31
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1999)31:8<583::aid-kin8>3.0.co;2-s

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✦ Synopsis

The kinetics of oxidation of allyl alcohol with potassium bromate in the presence of osmium(VIII) catalyst in aqueous acid medium has been studied under varying conditions. The active species of oxidant and catalyst in the reaction were understood to be and

Ϫ

Bro 3 H 2 OsO 5 , respectively. The autocatalysis exhibited by one of the products, that is, Br Ϫ , was attributed to complex formation between bromide and osmium(VIII). A composite scheme and rate law were possible. Some reaction constants involved in the mechanism have been evaluated.

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