氯化镁电解过程中碱金属的行为
来源期刊：中南大学学报(自然科学版)1996年第5期
论文作者：张永健 江名喜
文章页码：35 - 39
关键词：氯化镁电解; 熔盐电解; 碱金属的电极行为
Key words：magnesium chloride electrolysis; molten salts electrolysis; electrode behaviour of alkali metal
摘 要：研究了氯化钠、氯化钠－氯化钾、氯化镁－氯化钠－氯化钾熔体系中碱金属的析出行为.研究表明：由于去极化作用.碱金属析出电位远正于其热力学析出电位.氯化镁在正常工业浓度下电解时碱金属也与镁同时放电.
Abstract: Study was carried out on the deposition of alkali metal during the electrolysis of NaCl, NaCl-KCl-and-MgCl2-NaCl-KCl-melts-by using galvanostat, potentiostat and voltammetry. It was found that alkali metal deposited at the potential much more positive than its thermodynamic potential owing to depolarization effect. During electrolysis of MgCl2 alkali metal codeposited with magnesium even at the normal concentration of MgCl2, and the lower the concentration of MgCl2 and the more negative the applied potential, the stronger the alkali metal deposition.
