几种有机磷农药的热分析研究

KINETIC STUDY OF THE THERMAL DECOMPOSITION OF SOME ORGANOPHOSPHORUS PESTICIDES BY THERMAL ANALYSIS

本文主要用热重分析法,分别测定了乐果、敌百虫和甲基-1605三种农药热分解反应的动力学参数,进而探讨了热分解机理并计算了室温时的分解时间,对安全生产和确定贮存时间有一定指导意义。

Recently,thermal analysis is a useful technique to study the kinetics of decomposition reaction.We used this technique to studythree kinds of organophosphorus pesticides--roger,dipterex andparathion-methyl and obtained kinetic equations of the theremal decomposition.These pesticides may decompose more or less readily in storage conditions.The rate of decomposition increases at higher temperature,especially to parathion-methyl,and an explosive violence would occur at certain temperature.In order to control the thermal decompositions of these pesticides either in storage or in production,we studied their decomposition kinetics and mechanisms and estimated the"stable life"at some lower temperature.