4.7 Article

Evaluation of 2-mercaptobenzimidazole as corrosion inhibitor for mild steel in phosphoric acid

Journal

CORROSION SCIENCE
Volume 43, Issue 12, Pages 2281-2289

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0010-938X(01)00036-1

Keywords

mild steels phosphoric acid; 2-mercaptobenzimidazole; corrosion inhibition

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The inhibiting action of 2-mercaptobenzimidazole on the corrosion of mild steel in phosphoric acid (H3PO4) solution has been investigated by weight loss and polarization. The studies reveal that the inhibitor is effective for the inhibition of mild steel over a wide concentration range of H3PO4 solutions and retards the anodic and cathodic corrosion reactions with emphasis on the former. (C) 2001 Elsevier Science Ltd. All rights reserved.

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