Ru(III)-catalyzed oxidation of pyruvic acid by iodate - A kinetic study

被引：11
|
作者：
Manikyamba, P [1 ]
机构：
[1] Kakatiya Univ, Dept Chem, Warangal 506009, Andhra Pradesh, India
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2003年 / 78卷 / 01期
关键词：
oxidation; catalysis; iodate; pyruvic acid;
D O I：
10.1023/A:1022534521041
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ru(III) acts as a catalyst in the oxidative decarboxylation of pyruvic acid by iodate. The reaction is found to be first order with respect to [oxidant] and [catalyst] and fractional order in [pyruvic acid]. Increase in the concentration of H2SO4 and decrease in the dielectric constant of the medium retard the oxidation process. The product of oxidation is acetic acid. A mechanism involving the formation of a complex between the substrate and the catalyst, which reacts with the oxidant in the slow step is proposed. The formation constant of the complex and the rate constant of the slow step are determined.
引用
收藏
页码：169 / 173
页数：5
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