Kinetics and Mechanism of Oxidation of L-Cystine by Hexacyanoferrate(III) in Alkaline Medium

Annapurna Nowduri; Kalyan Kumar Adari; Nageswara Rao Gollapalli; Vani Parvataneni

doi:10.1155/2009/615750

E-Journal of Chemistry (Jan 2009)

Kinetics and Mechanism of Oxidation of L-Cystine by Hexacyanoferrate(III) in Alkaline Medium

Annapurna Nowduri,
Kalyan Kumar Adari,
Nageswara Rao Gollapalli,
Vani Parvataneni

Affiliations

Annapurna Nowduri: Department of Inorganic and Analytical Chemistry, School of Chemistry, Andhra University, Visakhapatnam-530 003, India
Kalyan Kumar Adari: Department of Inorganic and Analytical Chemistry, School of Chemistry, Andhra University, Visakhapatnam-530 003, India
Nageswara Rao Gollapalli: Department of Inorganic and Analytical Chemistry, School of Chemistry, Andhra University, Visakhapatnam-530 003, India
Vani Parvataneni: Department of Inorganic and Analytical Chemistry, School of Chemistry, Andhra University, Visakhapatnam-530 003, India

DOI: https://doi.org/10.1155/2009/615750
Journal volume & issue: Vol. 6, no. 1
pp. 93 – 98

Abstract

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Kinetics of oxidation of L-cystine by hexacyanoferrate(III) was studied in alkaline medium at 30 °C. The reaction was followed spectrophotometrically at λmax = 420 nm. The reaction was found to be first order dependence each on [HCF(III)] and [cystine]. It was found that the rate of the reaction increases with increase in [OH-]. The oxidation product of the reaction was found to be cysteic acid. A plausible mechanism has been proposed to account for the experimental results.

Published in E-Journal of Chemistry

ISSN: 0973-4945 (Print); 2090-9810 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/2962

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