模拟热谱曲线法(Ⅱ)──不可逆连串-级反应的热动力学研究

Analog Thermogram Method(Ⅱ)──Studies on Thermokinetics of Irreversible Consecutive First-order Reactions

研究连串反应的动力学有十分重要的意义，文献［1，2]建立了两种连串一级反应的热动力学研究法．我们在前文[1]的基础上，建立了模拟热谱曲线法．该法可以直接从热导式量热计的热谱曲线上解析出连串一级反应中两步反应的速率常数．应用该法测定了邻苯二甲酸二乙酯和丁二酸...

Based on our previous article, the research method of analog thermogram method for consecutive first-order reactions has been proposed in this paper. The rate constants of the consecutive first-order reactions can be obtained from the thermogram of conduction calorimeter with this method without using any apparatus constants. ln order to test the validity of thls method, the saponifications of diethyl phthalate and diethyl succinate in aqueous ethanol solvent have been studied. The rate constants calculated with this method are in agreement with those in literatures, and therefore, the analog thermogram meth0d for consecutive first-order reactions is believed to be correct.