B-Z化学振荡反应的影响因素及H_2O_2的检测  

Influencing Factors of B-Z Oscillating Reaction and Determination of H_2O_2

作　　者：胡猛 汪玉 HU Meng;WANG Yu(School of Chemical and Environment,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学化学与环境工程学院,上海201418

出　　处：《广州化工》2019年第1期117-120,共4页GuangZhou Chemical Industry

基　　金：上海市高校青年教师培养计划(ZZyy15088);上海应用技术大学引进人才科研启动基金(YJ2014-20);上海应用技术大学教改项目(2017)

摘　　要：化学振荡反应是在开发体系中进行的远离平衡的一类反应。大学化学已经将化学振荡反应作为基本实验项目之一。B-Z反应具有复杂的反应机理,影响反应的因素较多,搅拌速率对B-Z化学振荡有重要的影响。研究了不同搅拌速率下化学振荡的变化以及化学振荡对H_2O_2的响应。当H_2O_2浓度在(0. 0834～1. 668)×10^(-4)mol/L内,响应电势和振荡再发生期均与H_2O_2加入时的浓度呈良好线性关系,可检测最低浓度为0. 0834×10^(-4)mol/L。Chemistry oscillating reaction is far from the equivalent state in an open system,which has already been regarded as one of the basic experiments in the teaching of Physical Chemistry.There are many influencing factors for the oscillating reactions,and the agitation plays a key role among them.B-Z chemical oscillating at different agitation velocities and its response to hydrogen peroxide were studied.When the concentration was(0.0834~1.668)×10^-4 mol/L,there was a linear relationship between the voltage and the centration with the lowest limit of 0.0834×10^-4 mol/L.

关 键 词：非平衡态 化学振荡 因素 干扰离子 化学教学 

分 类 号：O643.1[理学—物理化学]