Inhibition of Mild Steel Corrosion by Red Sea Water Using 2-Aminobenzimidazole

Abstract

The purpose of this study was to evaluate the effectiveness of organic inhibitor to slow down or inhibit the mild steel corrosion caused by red sea environment. 2-aminobenzimidazole (2-ABA) was used as inhibitor, corrosion was evaluated through weight loss determination and electrochemical techniques. The results obtained revealed that 2-ABA is a mixed inhibitor. The extent of inhibition reached 97.53% at the highest concentration of the inhibitor. Morphological analysis of mild steel specimens using scanning electron microscopy (SEM) and Energy Dispersive x- ray spectroscopy (EDAX) provide supportive evidence for the formation of film that retards corrosion process. Further evidence was derived from IR spectra which showed shift or disappearance of peaks indicating the binding between inhibitor and mild steel surface.