Effect of Inhibitors on Corrosion Control of Mild Steel in Natural Aqueous Environment
Corresponding Author(s) : V. Manivannan
Asian Journal of Chemistry,
Vol. 25 No. 17 (2013): Vol 25 Issue 17 page 9743-9747
Corrosion inhibition by new triazole derivatives, 2-phosphonoacetic acid (2-PAA) and Zn2+ on mild steel in aqueous media has been investigated by weight loss and potentiodynamic polarization, electrochemical impedance spectroscopy and atomic absorption spectroscopic methods. The results indicate that these compounds act as mixed-type inhibitors retarding the anodic and cathodic corrosion reactions. Combination of 1-(2-pyrrolecarbonyl)benzotriazole along with Zn2+ and 2-phosphonoacetic acid shows better corrosion inhibition efficiency than other inhibitor combinations and the individual inhibitors.
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