Ethanolamine salt as vapor corrosion inhibitors for mild steel in NaCl environment

Abstract

Three new volatile corrosion inhibitors (VCI S) such as ethanolamine benzoate (EAB), ethanolamine salicylate (EAS), and ethanolamine cinnamate (EAC), were synthesised and investigated as vapor corrosion inhibitors by weight loss, potentiodynamic polarization, and electrochemical impedance methods for mild steel. The potentiodynamic polarization studies have shown that EAB, EAC are mix type inhibitor behaviour and EAS behaved predominantly as anodic corrosion inhibitor. All the investigated VCIs exhibited good inhibition efficiency (IE) for mild steel. ©2012 by NACE International.