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Kinetics and mechanism of chloramine‐T oxidation of cinnamaldehyde in two acid media
Author(s) -
Mythily C. K.,
Rangappa K. S.,
Made Gowda N. M.
Publication year - 1991
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550230204
Subject(s) - chemistry , cinnamaldehyde , kinetics , ionic strength , chloramine t , rate equation , reaction rate constant , solvent , reaction rate , reaction mechanism , inorganic chemistry , organic chemistry , catalysis , aqueous solution , physics , quantum mechanics
Kinetics of oxidation of cinnamaldehyde (Cinn) by chloramine‐T (CAT) has been studied in solutions containing HCl and H 2 SO 4 at 313 K. The respective experimental rate laws obtained in HCl and H 2 SO 4 media are as follows:andHere the value of x varies from 0.9 to zero while the values of y and z are 0.83 and 0.72, respectively. Effects, on the reaction rate, of ionic strength, reaction product ( p ‐toluenesulfonamide), dielectric constant of the solvent medium, and the anions, Cl − and SO 4 2− , have been investigated. Activation parameters have been computed, based on the rate constants determined at different temperatures. Mechanisms proposed and the rate laws derived are consistent with the observed kinetic data represented by the experimental rate laws.