Kinetic and Mechanism Study of the Oxidative Decolorization of Neutral Red by Bromate in Micellar Medium

被引：2

作者：

Khan, M. Nasiruddin ^{[1
]}

Siddiqui, Z. ^{[1
]}

Uddin, F. ^{[1
]}

机构：

[1] Univ Karachi, Dept Chem, Karachi 75270, Pakistan

来源：

JOURNAL OF THE IRANIAN CHEMICAL SOCIETY | 2009年 / 6卷 / 03期

关键词：

Kinetic; Bromate; Neutral red; Surfactant; Mechanism; PLAUSIBLE SKELETON MECHANISM; SPECTROPHOTOMETRIC DETERMINATION; TRACE AMOUNTS; CHEMICAL OSCILLATIONS; UNCATALYZED REACTION; AROMATIC-COMPOUNDS; CATIONIC MICELLES; HYDROGEN-PEROXIDE; SIMULATION; ACID;

D O I：

10.1007/BF03246532

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The kinetics of the oxidation of neutral red by bromate was investigated in the presence of cationic surfactant (N-dodecylpyridinium chloride) and strongly acidic media over the temperature range 22-35 degrees C. The kinetic studies were carried out as a function of different variables like concentration and temperature. The described reaction rate is greatly catalyzed by the presence of trace amount of Fe(II) ions and followed by pseudo-third-order kinetics with respect to dye concentration. A possible mechanism for the catalyzed reaction is offered which is found to be coincidentally congruent with experimental findings. The derived rate equation is in good agreement with the experimental observations. Thermodynamic parameters were also evaluated.

引用

页码：533 / 541

页数：9

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