The inhibition effect of Schiff bases on corrosion of Mild steel in HCl and their characterization

The inhibition effect of schiff base compounds for mild steel in HCl solution were analyzed by weight loss method, potentiodynamic polarization, UV-vis, IR and Electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization study revealed that the schiff bases acted as mixed type inhibitors. The EIS parameter is indicative of adsorption of schiff bases on mild steel surface leading to formation of protective layer. The weight loss study showed that the inhibition efficiency of these compounds increases with increase in concentration and vary with immersion time. Adsorption of schiff bases obeyed the Langmuir adsorption isotherm. In the UV-visible and IR spectral data gave the exact structure of the Schiff bases.

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Keywords: Greener Synthesis of Schiff Bases, Mild steel, Potentiodynamic Polarization, EIS.

ISSN: 2349-4182

EISSN: 2349-4182


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