Chidan Kumar, C. S. and Chandraju, S. and Made Gowda, N. M. (2009) Manganese(iii) oxidation of l-methionine in aqueous acetic acid medium: a kinetic and mechanistic study. Synthesis and Reactivity In Inorganic Metal-Organic And Nano-Metal Chemistry, 39 (10). pp. 645-650. ISSN 1553-3182
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A solution of manganese(III) acetate in aqueous acetic acid medium has been prepared by a standard electrochemical method. The nature of the oxidizing species present in manganese(III) solution has been characterized by spectrophotometric and redox potential measurements. Kinetics of oxidation of L-methionine (Met) by manganese(III) in aqueous acetic acid (60%v/v) at 323 K has been studied. The experimental rate law obtained is: rate = Mn(III)]x Met]y OAc-]z /H+]n, where x, y, z and n represent fractional orders. Effects of varying ionic strength, solvent composition, and added ions such as fluoride, chloride, and perchlorate have been investigated. Activation parameters have been evaluated using Arrhenius and Eyring plots. A mechanism consistent with the observed kinetic data has been proposed and discussed. A rate law has been derived based on the mechanism.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | kinetics; manganese(III); mechanism; methionine; oxidation; reduction |
| Subjects: | D Physical Science > Sugar Technology |
| Divisions: | PG Centre Mandya > Sugar Technology |
| Depositing User: | Users 19 not found. |
| Date Deposited: | 31 Aug 2019 06:12 |
| Last Modified: | 10 Dec 2020 10:05 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/7440 |
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