KINETICS AND MECHANISM OF OXIDATION OF DL-ALPHA-ALANINE BY PERMANGANATE ION IN ACID PERCHLORATE-MEDIA

被引：43
|
作者：
HASSAN, RM
机构：
来源：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1991年 / 69卷 / 12期
关键词：
KINETICS; OXIDATION; REDUCTION; AMINO ACIDS; PERMANGANATE;
D O I：
10.1139/v91-292
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics of permanganate oxidation of DL-alpha-alanine in aqueous perchloric acid solution at a constant ionic strength of 2.0 mol dm-3 has been investigated spectrophotometrically. The reaction was found to show second-order kinetics overall with respect to each of the reactants in the slow initial stage; the second-order kinetics are not, however, maintained throughout the relatively fast final stage of reaction. The added salts lead to the prediction that Mn(III) and (or) Mn(IV) play a very important role in the reaction kinetics. A tentative mechanism consistent with the kinetics is discussed.
引用
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页码：2018 / 2023
页数：6
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