Authors: Saha, Bidyut; Pal, Kalyan K.

Source: Progress in Reaction Kinetics and Mechanism, Volume 30, Number 4, 2005 , pp. 283-291(9)

Publisher: Science Reviews 2000 Ltd

Abstract:

The kinetics and mechanism of Cr^VI oxidation of D-glucose in the presence and absence of 1,10-phenanthroline (phen) in aqueous acid media have been studied under the conditions, [sugar]_T»[Cr^VI]_T at different temperatures. The monomeric species of Cr^VI has been found to be kinetically active in the absence of phen whereas in the phen-catalysed path, the Cr^VI - phen complexes have been found to be the active oxidants. Both the paths show a first order dependence on [sugar]_T and [Cr^VI]_T. The uncatalysed path shows a second order dependence on [H⁺], while the catalysed path shows a first order dependence on [H⁺]. The phen-catalysed path is first-order in [phen]_T. These observations remain unaltered in the presence of externally added surfactants. CPC inhibits both pathways while SDS catalyses the reactions.

Keywords: kinetics; catalysis; D-glucose; Chromium(VI); 1,10-phenanthroline; surfactants

Document Type: Research article

DOI: http://dx.doi.org/10.3184/007967405779133994

Affiliations: 1: Department of Chemistry, Hetampur K.C College, Hetampur-731124, Birbhum, WB, India

Publication date: 2005-12-01

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• Progress in Reaction Kinetics & Mechanism is an international journal for the quarterly publication of both in-depth reviews and research articles.

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