Kinetics of oxidation of indigo carmine by N-sodio-N-bromotoluenesulfonamide in acidic buffer medium

Ananda, S. and Jagadeesha, M. B. and Venkatesha, B. M. and Made Gowda, N. M. (1997) Kinetics of oxidation of indigo carmine by N-sodio-N-bromotoluenesulfonamide in acidic buffer medium. International Journal of Chemical Kinetics, 29 (6). pp. 453-459.

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Official URL: https://doi.org/10.1002/(SICI)1097-4601(1997)29:6<...

Abstract

The kinetics of oxidation of indigo carmine (IC) by N-sodio-N-bromotoluenesulfonamide or bromamine-T (BAT) in pH 5 buffer medium has been investigated at 30 degrees C using spectrophotometry at 610 nm. The reaction rate shows dependencies of first-order on IC](0), second-order on BAT](0) fractional order on H+], and inverse first-order on p-toluenesulfonamide]. The addition of chloride and bromide ions, and the variation of ionic strength of the medium have no influence on the reaction rate. There is a negative effect of the dielectric constant of the solvent. Activation parameters have been calculated. A single-pathway mechanism for the reaction, consistent with the kinetic data, has been proposed. (C) 1997 John Wiley & Sons, Inc.

Item Type: Article
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: Users 23 not found.
Date Deposited: 01 Jun 2021 07:34
Last Modified: 06 Jul 2022 07:48
URI: http://eprints.uni-mysore.ac.in/id/eprint/16617

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