Mechanism of peroxide reactions : Kinetics of oxidation of sulfanilic acid by peroxomonosulfuric acid

被引：0

作者：

Panda, R ^{[1
]}

Reddy, MPC ^{[1
]}

机构：

[1] Khallikote Coll Autonomous, Dept Chem, Berhampur 760001, Orissa, India

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 2004年 / 43卷 / 06期

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D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The oxidation of sulfanilic acid by peroxomonosulfuric acid (PMSA) has been investigated in the pH range 0-12.5. The reaction obeys second order kinetics, first order each in [peroxomonosulfuric acid] and [sulfanilic acid] at constant pH. The observed bell-shaped pH-rate profile with a rate maximum at pH approximate to 5.96 has been rationalised invoking various PMSA species and the unprotonated form of sulfanilic acid as the reactiing species, and their reactivities have been estimated. The mechanism of oxidation involves the nucleophillic attack of the nitrogen lone pair of unprotonated sulfanillic acid on the electrophilic peroxo-oxygen of PMSA species.

引用

页码：1224 / 1227

页数：4

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