Inhibition of zinc corrosion in alkali solutions

The problem of zinc corrosion in an alkali solution is a topic of basic and technological interest, as zinc is used as an anode in a variety of alkaline batteries. Corrosion is the basic cause of self‐discharge and short shelf‐life of zinc batteries. The need for studies on the kinetics of corrosion arises as one of the corrosion products, viz, gaseous hydrogen, creates problems in sealed batteries. Sulphides and thiourea of various concentrations were added to alkali solutions and the mechanism of their inhibition is discussed.