Cathodic Disintegration of Tin

Abstract

Disintegration of tin cathodes at high current densities was studied in neutral, acid, and alkaline solutions of sulfuric acid and alkaline and ammonium hydroxides, sulfates, and chlorides. The tin left the surface as SnH, and the i0's were of the order of amp/cm2. Acid decreased the disintegration rate, saltsadded 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.