Ciprofloxacin as Corrosion Inhibitors for Mild Steel -Effects of Concentration and Temperature (original) (raw)

Abstract

Abstract:Studies on the corrosion inhibition potentials of ciprofloxacin were carried out using gravimetric, thermometric and scanning electron microscopy techniques. The inhibition efficiencies of ciprofloxacin for the corrosion of mild steel increased with increase in concentration but decreased with rise in temperature. The scanning electron microscopy shows that the damaging effect of the acid on the metal surface is greatly reduced with the presence of the inhibitor. This may probably be due to the formation of protective coverage by the inhibitor. Adsorption characteristics of the inhibitor has also been studied and it is found that ciprofloxacin inhibits the corrosion of mild steel by being adsorbed on the surface of mild steel by a physicaladsorption mechanism. The adsorption of ciprofloxacin on the mild steel surface was found to be spontaneous and obey the Langmuir adsorption isotherm model. Keywords:corrosion; mild steel; inhibitor; adsorption; ciprofloxacin.

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