The character of PHA decolorizing reaction with iron(III) catalysis and its analytical application

Acta Chimica Sinica ›› 1998, Vol. 56 ›› Issue (2): 184-188. Previous Articles Next Articles

Original Articles

铁(III)催化多卤代变色酸双偶氮胂类试剂的褪色反应特性及其应用

郑琦;蔡汝秀;林智信

华中理工大学汉口分校;武汉大学化学系

发布日期:1998-02-15

The character of PHA decolorizing reaction with iron(III) catalysis and its analytical application

ZHENG QI;CAI RUXIU;LIN ZHIXIN

Published:1998-02-15

Abstract

kThe decolorizing reaction character of containing-AsO3H2(PHA) polyhalogenated bisazo derivative of chromotropic acid with hydrogen peroxide by iron(III) catalysis has been investigated. In order to study the mechanism of this reaction in acid medium, the reaction order, apparent activation energy and kinetic equation have been determined. In the meantime, influence of the reagent structure on the character of decolorizing reaction has been discussed. This method has also been applied to determine trace iron in human hair with satisfactory results.

Key words: REACTION MECHANISM, REACTION KINETICS, IRON, COLOR REACTION, HYDROGEN PEROXIDE, ARSENAZO, ACTIVATION ENERGY

CLC Number:

O657

Cite this article

ZHENG QI;CAI RUXIU;LIN ZHIXIN. The character of PHA decolorizing reaction with iron(III) catalysis and its analytical application[J]. Acta Chimica Sinica, 1998, 56(2): 184-188.

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铁(III)催化多卤代变色酸双偶氮胂类试剂的褪色反应特性及其应用

The character of PHA decolorizing reaction with iron(III) catalysis and its analytical application

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