Abstract
The inhibiting effect of 3-((1H-indol-3-yl)(4-methoxyphenyl)methyl)-1H-indole (IMMI) on the corrosion of mild steel (MS) in 15% HCl solution has been studied by using potentiodynamic polarization technique. The polarization data revealed that IMMI acts as a mixed type inhibitor for mild steel in acid solution.. The adsorption of the inhibitors on the mild steel surface was found to obey Langmuir's adsorption isotherm. Inhibition efficiency was found to be greater than 95% and inhibition is governed by both physical adsorption and chemisorption mechanism.
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