Kinetics and mechanism of oxidation of l-cystine by manganese(III) in sulfuric acid medium

被引：0
作者：
Nowduri Annapurna
Adari Kalyan Kumar
Parvataneni Vani
Gollapalli Nageswara Rao
机构：
[1] Andhra University,Department of Inorganic and Analytical Chemistry, School of Chemistry
来源：
Transition Metal Chemistry | 2008年 / 33卷
关键词：
Cystine; Order Rate Constant; Kinetic Investigation; Cysteic Acid; Chlorine Dioxide;
D O I：
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学科分类号：
摘要：
The kinetics of oxidation of l-cystine by MnIII have been studied in sulfuric acid medium at 30 °C. The reaction was followed spectrophotometrically at λmax = 500 nm. The reaction shows first order dependence on both [MnIII] and [cystine]. It was found that the rate of the reaction decreases with increase of [H+] up to a certain point and then remains unchanged. The oxidation product of the reaction was found to be cysteic acid. A plausible mechanism has been proposed to account for the experimental results.
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页码：691 / 696
页数：5
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