Effect of Schiff Base Ligands as Corrosion Inhibitors on Mild Steel

Abstract

Corrosion is recognized as a major problem in today’s manufacturing industries where every industry pays for the cost of corrosion and pays for its control. If we consider mild steel which is extensively used in industries gets corroded when exposed to different industrial corrosive environments. Therefore, this experiment deals with the effort to control the rate of corrosion and increase the stability of the material. Mild steel which is being used is dissolved in 0.1M H2SO4 and corrosion inhibitors can be used to restrain the corrosive attack of acids on the structure. Using organic corrosion inhibitors having hetero atoms in the organic molecule such as nitrogen, oxygen and sulphur are acting as donor atoms. Newly synthesized organic corrosion inhibitors viz., IM1 to IM4 in 0.1M H2SO4. This helped us to understand acid and inhibitors concentration, immersion time and temperature on dissolution rate and polarization potential have been studied. The mild steel follows adsorption of inhibitors molecules which is been proved through the study of Arrhenius adsorption isotherm.