Kinetics and mechanism of the oxidation of L-ascorbic acid by 2,6-dichlorophenol-indophenol in aqueous solution |
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| Authors: | T. S. Rao N. R. Kale S. P. Dalvi |
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| Affiliation: | (1) Department of Chemistry, University of Poona, 411 007 Pune, India |
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| Abstract: | The kinetics of oxidation of L-ascorbic acid by 2,6-dichlorophenolindophenol in aqueous solution has been studied. The rate of the reaction decreases with increasing pH since the hydrogen ascorbate ion is less reactive than the unionized L-ascorbic acid. The rate constants for the oxidation of the two species have been evaluated and a plausible mechanism of the reaction is suggested.
             L-         2,6-  - .      pH,   , L- .   .
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