Expired Desloratidine Drug as Inhibitor for Corrosion of Carbon Steel Pipeline in Hydrochloric acid Solution

Abstract

The expired desloratidine drug was examined as an inhibitor for carbon steel (X52) corrosion in 1M HCl solution. The inhibition conduct of desloratidine was studied utilizing potentiodynamic polarization and weight loss techniques. The drug efficacy as inhibitor was found to rise by increasing the desloratidine concentration and reduces by increasing temperature. Morphology of the surface and the adsorption isotherm were also studied. The heat of adsorption (Qads) and activation energy (Ea) were computed and elucidated. Based on adsorption of desloratidine molecules on carbon steel surface leading to conserve the carbon steel surface from the offensive ions, the inhibition conduct was explicated.