Complex Sulfates Containing Tri- and Pentavalent Columbium and the

AND RALPH C. YOUNG. The electrolytic reduction of columbium in sul- furic acid solution has been reported by several investigators*,2*3$ but no well-d...
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AND RALPH C. YOUNG. The electrolytic reduction of columbium in sul- furic acid solution has been reported by several investigators*,2*3$ but no well-defined ...