Abstract

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Interfacial behavior of Cysteine (Cys) as corrosion inhibitor to different metals in different solution has been studied by different techniques. Generally Cysteine has the ability to control corrosion of various metals such as carbon steel, zinc, tin and copper. It behaves as an inhibitor in acid medium, neutral medium and in desecrated carbonate solution. Various techniques like weight loss method, polarization study, electrochemical impedance Spectroscopy and AC impedance spectra have been used to evaluate the corrosion inhibition efficiency of Cysteine. All the results show Cysteine is the good corrosion inhibitor to different metal in different medium with or without additive known by all the reference.

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