利用手持技术探究过氧化氢的分解  

The Use of Held Technology in Detecting Decomposition of Hydrogen Peroxide

作　　者：陈承声[1] 区永麟 

机构地区：[1]广东教育学院化学系,广东广州510303 [2]佛山市南海区大沥镇大镇中学,广东佛山528000

出　　处：《广东教育学院学报》2007年第3期59-63,共5页Journal of Guangdong Education Institute

基　　金：广东教育学院科研基金资助项目

摘　　要：利用手持技术仪器测量过氧化氢分解时所引起的压强变化.通过实验比较了二氧化锰、马铃薯或干酵母作催化剂的条件下对H2O2溶液分解的影响.结果表明,增加催化剂的用量能提高分解反应的速率,增大H2O2溶液的浓度也会加快分解反应速率.对反应速率进行了线性拟合,建立了过氧化氢催化分解反应的动力学方程.The pressure changes as decomposition o{ hydrogen peroxide in the presence of catalysts such as magnesium dioxide, smashed potato or dried yeast are measured with held technology. The result is that the rate of decomposition rises as the amount of a catalyst is added, and that the increase in consistency of hydrogen peroxide solution will speed up the rate of decomposition. A series of liner equations are set up that demonstrate kinetic models during the time when these decomposition reactions are taking place.

关 键 词：手持技术 过氧化氢分解 二氧化锰 马铃薯 干酵母 

分 类 号：O6-3[理学—化学]