【摘要】 研究了酸度、温度、Mn2+浓度等因素对高锰酸钾氧化草酸钠反应过程的影响。通过在线测量该反应过程的紫外-可见光谱变化,借助主成分分析等数据处理方法,获得了反应动力学过程及中间体的信息。通过系列实验研究以及对实验数据的计算机处理,大大提高了同学们的综合能力和学习兴趣。更多还原

【Abstract】 The effect of acidity, temperature, concentration of Mn2+ on the reaction rate of potassium permanganate oxidizing sodium oxalate was studied. By means of online monitoring the changes of the absorption spectra in the reaction process, the twoway kineticspectral data was obtained. The information of the kinetic reaction process was acquired and an absorbing intermediate was deduced with Principle Component Analysis (PCA). Via the research of a series of experiment and data processing with computer, the students’ comprehensive ability can be enhanced and the interest can be aroused greatly.更多还原