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Kinetics and mechanism of sulfite oxidation by permanganate in basic medium

✍ Scribed by Teresa Ernst; Maria Cyfert; Michal Wilgocki

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
289 KB
Volume
24
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The kinetics of the permanganate‐sulfite redox reaction has been studied in the alkaline medium using a stopped‐flow technique. In the pH range 10 to 12 the reaction was found to obey the rate expression: −½__d__[MnO~4~^−^]/dt = (k~1~ + k~2~[OH^−^]) [MnO~4~^−^] [SO~3~^2−^]. Mechanisms for the two paths involving the formation of a (O~3~MnOSO~3~)^3−^ complex prior to the rate‐determining step are consistent with the data. © John Wiley & Sons, Inc.

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