Effect of inhibitors and biocide on corrosion control of mild steel in natural aqueous environment

Abstract

A triazole phosphonate compounds, namely, 3-benzyledene amino 1,2,4-triazole phosphonate (BATP), 3-cinnamyledene amino 1,2,4-triazole phosphonate (CATP) and 3-anisalidene amino1, 2,4-triazole phosphonate (AATP), were synthesized and its inhibition efficiency along with biocide action on corrosion of mild steel in natural aqueous solution was investigated through weight loss and electrochemical polarization techniques. Results from experimental observation have indicated AATP as a better corrosion inhibitor for mild steel in aqueous solution. Additionally, the formulation consisting of AATP, Mo and CTAB offered good corrosion inhibition efficiency. Surface characterization studies were carried out to establish the mechanism of corrosion inhibition of mild steel in aqueous media. © 2003 Elsevier Science B.V. All rights reserved.