Enhancement of the Inhibitor Efficiency of Atropine Methochloride in Corrosion Control of Mild Steel in Sulphuric Acid

Abstract

The inhibition efficiency and synergistic behaviour of 10-4M Atropine methochloride was carried out using mass loss and polarisation methods in the presence of (i) metal ions, Ni2+and Cu2+between 10-2M to 10-6M concentrations, (ii) different concentrations of metal ions and 10-3M I-, 10-3M Cl-and 10-3M Br-solutions and (iii) different metal ions, 10-3M I-and at three different temperatures. The analysis reveals that the inhibition efficiency of Atropine methochloride was maximum at 10-2M in 5 hours of immersion period. Halides decreased the corrosion rate of mild steel in Sulphuric acid. The decrease is maximum with 10-3M I-. As the temperature increased from 298K to 308K, the inhibition efficiency gradually decreased. The inhibitor was found to be effective up to 303K