摘要
通过用高锰酸钾分析双氧水浓度的方法,来测定双氧水的分解速率.并考察了温度、pH、金属铜、锰、锌离子等对双氧水的分解速率的影响.得出:pH<3.5和T<35℃时双氧水是稳定的,金属铜离子对双氧水有催化分解作用,与文献报道一致.同时还发现金属离子锰、锌对双氧水的分解没有催化作用,首次报道了金属锌离子作用下双氧水的分解动力学曲线.
By using potassium permanganate to measure the concentration of hydrogen peroxide,the decomposition rate of hydrogen peroxide was determined. The influences of temperature,pH,metal copper,manganese,zinc ions on the decomposition rate of hydrogen peroxide were also studied. Results show that when pH〈3.5 and T〈35℃,hydrogen peroxide is stable,consistent with the reported in the literature; The study also indicates that manganese ions and zinc ions don＇t act as a catalyst in the decomposition of hydrogen peroxide. In addition,this paper reports hydrogen peroxide decomposition kinetics curve with the role of zinc ions for the first time. .
出处
《嘉兴学院学报》
2010年第3期51-53,共3页
Journal of Jiaxing University
基金
嘉兴学院SRT项目(8517080262)
关键词
双氧水
分解速率
高锰酸钾分析法
hydrogen peroxide
decomposition rate
analysis of potassium permanganate
