Novel Compounds of Imidazole Derivatives as Effective Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution

Abstract

The inhibition performance of two imidazole derivatives, IM-Cl and IM-CH3, on the corrosion behavior of MS in 1M HCl acid solution was studied through weight loss method and electrochemical tests. The results obtained from the electrochemical methods show that inhibition efficiency increases with the increase of inhibitors concentration. The adsorption of inhibitors on the mild steel surface obeys Langmuir adsorption isotherm. The corrosion protection was once also investigated with the aid of UV–Vis spectrophotometry. SEM-EDX was performed and discussed for surface study of uninhibited and inhibited mild steel samples.