COMPARATIVE INHIBITIVE EFFECT OF HYDROXYETHYLCELLULOSE ON MILD STEEL AND ALUMINIUM CORROSION IN 0.5M HCL SOLUTION

The inhibitive effect of HEC on Mild steel and Aluminium corrosion in 0.5M HCl solution under atmospheric exposure was studied using weight loss method. From the results obtained, it was observed that the corrosion rate was higher in Aluminium than in Mild steel. Inhibition efficiency and surface coverage were however, found to be higher in Mild steel than in Aluminium. In addition, corrosion current was determined. From our results, the corrosion current was higher in Mild steel than in Aluminium.