Pratap P.Kamble, R. Dubey
2021
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Journal
JOURNAL OF SCIENTIFIC RESEARCH
Abstract
55 DOI: 10.37398/JSR.2021.650607 Abstract: The effect of 5-(4-chlorophenyl)-1H-tetrazole (Cl-PTZ) on corrosion inhibition of mild steel in 1M HCl was investigated by weight loss measurement, open circuit potential(OCP), potentiodynamic polarization and surface measurements. Results showed that the inhibition efficiency increased with increase in concentration of inhibitor and attained the maximum value at 500 ppm concentration. Polarization study revealed that 5-(4chlorophenyl)-1H-tetrazole acted as mixedtype inhibitor. Among the several tested isotherms, adsorption of 5-(4-chlorophenyl)-1Htetrazole on the mild steel surface obeyed the Langmuir adsorption isotherm. The adsorption of corrosion inhibitor on mild steel surface is well supported by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) study.