Puttaswamy and Mahadevappa, D. S. and Made Gowda, N. M. (1993) Kinetics and mechanism of oxidation of indigo carmine by hypohalites. International Journal of Chemical Kinetics, 23 (1). pp. 27-35.
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Kinetics of oxidation of indigo carmine (IC) by sodium hypohalites, NaOX (X = Cl or Br), in alkaline buffer of pH 9-11 has been studied spectrophotometrically at lambda = 610 nm. The experimental rate law obtained is -dIC]/dt = kOX-]IC]OH-]x where x < 1. Variation of ionic strength or dielectric constant of the medium had no effect on the reaction rate while the addition of halide ions slightly retarded the rate. A most plausible mechanism proposed on the basis of experimental results involves the formation of isatin sulphonate which undergoes further oxidation to anthranilate. Activation parameters have been evaluated.
| Item Type: | Article |
|---|---|
| Subjects: | C Chemical Science > Chemistry |
| Divisions: | Department of > Chemistry |
| Depositing User: | Users 23 not found. |
| Date Deposited: | 08 May 2021 05:26 |
| Last Modified: | 06 Jul 2022 09:48 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/16392 |
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