Electrochemical Measurements of Corrosion Inhibition of Mild Steel in Sulfuric Acid by BIMGCS12-3

Yong Ming Sun; Hong Ling Chen

doi:10.4028/www.scientific.net/AMR.402.800

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 402Electrochemical Measurements of Corrosion...

Electrochemical Measurements of Corrosion Inhibition of Mild Steel in Sulfuric Acid by BIMGCS12-3

Abstract:

Gemini benzimidazole cationic surfactant, propanediyl-α, ω-bis-(N-dodecyl benzimidazole ammonium bromide), referred as BIMGCS12-3, was synthesized from the raw materials of benzimidazole, dodecane bromide and dibromopropane. The structure of the target compound was confirmed by HNMR and elemental analysis. Electrochemical behaviors of BIMGCS12-3 for protecting mild steel from sulfuric acid corrosion were issued. Changes in impedance parameters (charge transfer resistance, Rct, and double layer capacitance, Cdl) were indicative of the feasibility of BIMGCS12-3 as excellent mild steel corrosion inhibitor in sulfuric acid.