Abstract: The reduction of Pb(II) has been investigated in presence of different potassium salts as supporting electrolytes at a Hanging Mercury Drop Electrode (HMDE). The correlation of cathodic peak current and anodic peak current, and the difference in cathodic peak potentials and anodic peak potentials with varying voltage scan rates indicates that the reduction of Pb(II) is reversible.

Key Words: Cyclic Voltammetry, Lead (Pb (II)), Supporting Electrolytes (Potassium Chloride, Potassium Nitrate, and Potassium Sulphate)