1971 Volume 44 Issue 3 Pages 599-603
This paper will describe that metallic aluminum was deposited electrolytically from a solution of aluminum bromide in dimethyl aniline with a current efficiency of 95% or more under optimum conditions. The superposition of a sinusoidal alternating current (AC) on the electrolysis direct current (DC) affected the properties of coatings and the throwing power of solutions to a great extent. A smooth, white-bright, ductile, and adherent coating was obtained under such appropriate conditions as that the frequency of AC was 60 Hz, the AC to DC ratio of 2 to 3. Aluminum dissolved anodically, and it was deposited at the cathode. The freezing temperature-composition diagram indicated the occurrence of two stoichiometric molecular complexes, AlBr3·C6H5N(CH3)2 and AlBr3·2C6H5N(CH3)2, and the former was isolated.
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