Abstract Aluminium is an active metal, when sodium hydroxide solution was electrolyzed with aluminium as anode, in theory aluminium should lose electrons became aluminium ion dissolving in sodium hydroxide solution. Through experiment this paper obtained that the essence of electrolyzing sodium hydroxide solution with aluminium as anode was electrolyzing water, the produced oxygen could form a layer of dense aluminum oxide on the surface of aluminium electrode, and the aluminum oxide was insoluble in sodium hydroxide solution.
YE Yong-Qian, ZHANG Xian-Jin, WU Xin-Jian. Electrolysis Experiment of Sodium Hydroxide Solution with Aluminium as Anode[J]. Chinese Journal of Chemical Education, 2017, 38(9): 61-62.
