<研究論文>溶解Na_2SO_4中における塩基度の電気化学的制御とAl_2O_3, Cr_2O_3およびSiO_2の溶解挙動

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The basicity of fused Na2SO, at 1173 K was successfully controlled by the electrolysis of thesalt with platinum electrodes. With progress of the electrolysis, the basicity of the fused saltdecreased in the anolyte and increased in the catholyte. The changes in solubility of A120 3,Cr203 and Si02powders in the fused Na2S0, were examined as a function of the basicity of it usingthe electrolysis method. The changes in the basicity of the fused salt both for increasing anddecreasing resulted in an increase of the solubility of Cr,03 and more significantly of AI,03. Onthe other hand, the solubility of Si02was independent of the basicity and was extremely low in theacidic region, whereas that increased with decreasing the basicity in the basic region.
秋田大学の論文