Abstract

N-benzylidene-2-aminobenzimidazol as a New Corrosion Inhibitor for Mild Steel in HCl

Baqer Abdul Wahhab Taher Al-Mayyahi, Mustafa Kamel Joudah, Ali Abdulrazzaq Abdulwahid, Hassan Thamir Abdulsahib and Ahmed Yahya Issa Rubay

DOI : http://dx.doi.org/10.13005/ojc/330544

Abstract:

N-benzylidene-2-aminobenzimidazol (BA) has been investigated as corrosion inhibitor for mild steel in corrosive solution utilizing weight loss technique complemented with Scanning electron microscopy (SEM). The weight loss method results clarified that BA has good inhibiting impact for mild steel corrosion in corrosive solution, with efficiency of 79% at a highest utilizing concentration. BA was synthesized by the reaction of benzaldehyde with 2-aminobenzimidazol. Metal-complex that formed between metal and N-benzylidene-2-aminobenzimidazol (BA) has been postulated inhibition mechanism of mild steel corrosion. Quantum chemical calculations corroborate experimental results.

Keywords:

N-benzylidene-2-aminobenzimidazol (BA); Corrosion Inhibition; Weight loss method; Scanning Electron Microscopy (SEM); Quantum Chemical Calculations

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