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A kinetic and mechanistic study on the oxidation of indole-3-acetic acid by peroxodisulfate

✍ Scribed by S. Kalyanasundharam; G. Chandramohan; M. Suresh; V. Anbazhagan,; S. Lavanya; R. Renganathan

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 111 KB
Volume: 37
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.20090

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✦ Synopsis

Abstract

The kinetics of oxidation of indole‐3‐acetic acid (IAA) by peroxodisulfate (PDS) has been carried out in aqueous acetic acid medium. First‐order dependence of rate each with respect to [IAA] and [PDS] was observed. The reaction rate was unaffected by added [H^+^]. Increase of percentage of acetic acid decreased the rate. Variation of ionic strength (μ) had negligible influence on the rate. A suitable kinetic scheme based on these observations involving a nonradical mechanism is proposed. The reactivity of peroxodisulfate toward indole‐3‐acetic acid was found to be lower than that with peroxomonosulfate. © 2005 Wiley Periodicals, Inc. Int J Chem Kinet 37: 355–360, 2005

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