Experimental Design and Effect of the Preparation of Potassium Permanganate via Chlorine Oxidation Based on a Novel and Efficient Gas Generator
MA Yi1**, WEI Heng-Wei2, ZHANG Ke-Jia2, HE Di-Ping2, LIU Huan-Huan2, YIN Zhi-Guang1, FU Yu1, JIAO Huan1**
1.School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China;
2. Basic Experimental Teaching Center,Shaanxi Normal University,Xi'an 710062, China
Abstract In this paper, based on a novel and high-efficiency gas generator, an experimental scheme was designed to convert potassium manganate into potassium permanganate in a 100% theoretical yield using chlorine as oxidant. The experimental results show that a high purity potassium permanganate can be obtained using this scheme. It can not only guarantee the theoretical conversion rate of potassium permanganate, but also reduce the influence of the by-products on the purity of product using disproportionation reaction. At the same time, the by-products, sodium hypochlorite and chlorine water, can be used as basic reagents in inorganic teaching experiments well followed the guidance of “circular economy”.
MA Yi, WEI Heng-Wei, ZHANG Ke-Jia, HE Di-Ping, LIU Huan-Huan, YIN Zhi-Guang, FU Yu, JIAO Huan. Experimental Design and Effect of the Preparation of Potassium Permanganate via Chlorine Oxidation Based on a Novel and Efficient Gas Generator[J]. Chinese Journal of Chemical Education, 2020, 41(10): 26-30.
