Corrosion Mitigation Of Mild Steel In Acid Media By Wattakaka Volubilis Leaves Extract

The corrosion mitigation of mild steel in 1.0 N HCl by Wattakaka volubilis leaves extract have been studied at room temperature using weight loss method, potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The results show that the inhibition efficiency increases with the increase of the extract concentration. The adsorption of the phyto-chemical components present in the leaves extract on the mild steel surface obeys Langmuir adsorption isotherm and occurs spontaneously. The thermodynamic parameters for the adsorption process were calculated. These thermodynamic parameters show strong interaction between inhibitor and mild steel surface.