Investigation of Piperazine and its Derivatives as Vapor Phase Corrosion Inhibitors for Mild Steel

Piperazine and its derivatives such as phosphates, carbonates, benzoates, cinnamate and maleate were developed and investigated as vapor phase corrosion inhibitors by weight loss, potentiodynamic polarization methods for mild steel. All of these compounds have shown good inhibition efficiency for mild steel after 30 days under continuous condensation test (CT). The potentiodynamic polarization studies have shown predominantly anodic behavior of all these compounds.