Kinetics and Mechanism of Uncatalysed and Mercury(II)- catalysed Alkaline Chloramine-T Oxidation of Aspartic Acid
| Main Authors: | SA TISH K. S. SENGAR, B. S. YADAV |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1987
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6196985 |
Daftar Isi:
- Chemical Research Laboratories, R. B. S. College, Agra-282 002 Manuscript received 17 February 1986, revised 18 May 1987, accepted 11 August 1987 Kinetics of oxidation of aspartic acid by chloramine-T in aqueous sodium hydr-oxide media in absence and in presence of HgII has been investigated. A first order dependence each on chloramine-T and aspartic acid, both in absence and in presence of HgII has been observed. An inverse first order dependence on sodium hydroxide con-centration has been established for both uncatalysed and catalysed oxidation reactions. HgII ions catalyse the reaction significantly and the catalytic action of HgII is ascribed to the complex formation with aspartic acid anions. A negligible salt-effect points to a mechanism involving a neutral molecule and anion in the rate determining step. The activation parameters for both uncatalysed and HgII-catalysed oxidations have also been computed. Rate laws consistent with the experimental results have been deduced and suitable mechanism has been proposed.