Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/46407
Title: Kinetics of oxidation of cinnamaldehyde by chloramine-T in perchloric acid and in alkaline medium catalysed by Os(VIII)
Authors: Mythily, C K
Rangappa, K S
Mahadevappa, D S
Issue Date: Jul-1990
Publisher: NISCAIR-CSIR, India
Abstract: Kinetics of chloramines-T (CAT) oxidation of cinnamaldehyde in acid medium and in alkaline medium (catalysed by OsO4) have been investigated at 313 K. In acid medium, a Michaelis-Menten kinetics is obeyed with a first order dependence of rate on [CAT] and a fractional order in [aldehyde] which becomes zero at higher [aldehyde]. Rate dependence on [H+] varies from inverse fractional to fractional order. In alkaline medium the reaction in first order each in [CAT] and [Os(VIII)] and inverse first order in [OH-]. Solvent isotope effect, effects of added chloride ion, and p-toluenesulphonamide and varying ionic strength and dielectric constant of medium have been investigated. Activation parameters have been computed.
Page(s): 676-679
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.29A(07) [July 1990]

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