铁与硫酸铜溶液反应的异常现象探究

Inquiry on Abnormal Phenomena of Reaction Between Fe and CuSO4 Solution

偶然发现铁与硫酸铜溶液反应过程中溶液pH呈现下降趋势。针对这一异常现象进行实验探究,发现亚铁离子被氧化是产生异常现象的关键副反应。据此提出,消除异常现象的方法是用热的去氧蒸馏水配制2%的硫酸铜溶液,且反应装置要密闭。

It was accidentally found that the pH of the solution decreased during the reaction between iron and copper sulfate solution. It was found that the oxidation of ferrous ions was the key side reaction of the abnormal phenomenon. Therefore, it was proposed that the method to eliminate the abnormal phenomenon was to prepare 2% copper sulfate solution with hot deoxidized distilled water, and the reaction device should be sealed.