Corrosion of Ten Metals in Boiling Hydrochloric Acid when in Contact with Rhodium, Palladium, Iridium and Platinum

Abstract

THE corrosion of a metal in acid solution involves essentially the transfer to another species of one or more electrons by the metal atom, followed by solvation in the aqueous solution. In order to obtain a better understanding of the electron transfer process in this reaction, the rates of corrosion of aluminium, cadmium, cobalt, iron, lead, manganese, nickel, tin, titanium, and zinc were studied in boiling 2 M hydrochloric acid, with and without contact with platinum, iridium, rhodium and palladium.