Abstract 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.
BAO Yi-Cai, LONG Qi. Inquiry on Abnormal Phenomena of Reaction Between Fe and CuSO4 Solution[J]. Chinese Journal of Chemical Education, 2023, 44(1): 120-122.
