Electrochemical Investigation of the Inhibitory Action of Ciprofloxacin Drug on the Acid Corrosion of Mild Steel

Abstract

Electrochemical investigation of mild steel corrosion in acidic medium inhibited by an environmentally safe and commercially available low cost drug, ciprofloxacin, was carried out at room temperature. The results obtained show that the drug provided a good protection for mild steel in the acid medium investigated. The inhibition efficiency was found to increase with a corresponding increase in the concentration of the drug. The adsorption process that facilitated the inhibition mechanism was found to follow the Langmuir’s adsorption isotherm.

Keywords: linear polarization resistance (LPR), corrosion inhibition, mild steel, ciprofloxacin drug