Disintegration of tin cathodes at high current densities was studied in neutral, acid, and alkaline solutions of sulfuric acid and alkali and ammonium hydroxides, sulfates, and chlorides. The tin left the surface as SnH 4 and the i o ' s were of the order of amp/cm 2 . Acid decreased the disintegration rate, salts added to acid increased the rate, salts added to neutral solution decreased the rate. The cation effect was specific, disintegration rates decreasing in the order sodium, potassium, lithium, ammonium, and hydronium ion.
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Salzberg et al. (1958) studied this question.