Electrodeposition and Electrowinning of Germanium

Abstract
Aqueous, non‐aqueous, and fused electrolytes were studied. The electrodeposition of germanium from aqueous baths is apparently limited to thin flashes of the metal because of the very low overvoltage of hydrogen on germanium. Copper, silver, tin, cobalt, and nickel were each codeposited with germanium from aqueous solutions. The silver‐white inter‐metallic compound, , was deposited from an alkaline solution. Also described is a method for electrodepositing germanium from a solution of germanium tetraiodide in ethylene glycol and from a fused electrolyte of borax in which germanium dioxide was dissolved. The chemical resistance of the plate is good and it may have considerable decorative and protective value.