Abstract
Electrochemical behavior of some metallic elements in molten salt systems has been investigated as a fundamental study for purification of Mg metal. A mixture of MgCl 2 , CaCl 2 and NaCI was mainly used as an electrolytic bath, and a eutectic mixture of LiCl and KCl including MgCl 2 was also used. The electrochemical behavior of Li, Cr, Fe and Ni was examined by voltammetry, and their cathodic reactions were discussed. The results indicated that the electrochemical separation of the elements from Mg metal was possible in the molten salt systems. Potentio-static electrolysis was carried out below the melting point of Mg metal, and Mg metal was obtained. However, the deposit consisted of small Mg metal particle, and the surface of the particle was oxidized during rinsing with water.
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