Electrodeposition of Magnesium and Beryllium from Organic Baths

Abstract
Solutions that are feasible for electrodepositing magnesium were prepared from Grignard reagents with the addition of boranes in ether solutions. A typical bath consisted of methylmagnesium chloride, 3-molar (dissolved in tetrahydrofuran), and 1-molar in triethylboron. The deposits were white, ductile and contained at least 99% of Mg. Cathode and anode current efficiencies were 100%. A similar beryllium plating solution, prepared with beryllium dimethyl and decaborane, yielded dark grey, coherent deposits containing 85% to 90% beryllium.

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