The Inhibitive Effects of Gemini Imidazoline Surfactants on Copper in Hydrochloric Acid Solution

Xiqiu Wang, School of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P.R. China
2020 International Journal of Electrochemical Science  
Gemini imidazoline surfactant was synthesized from the lauric acid and triethylenetetramine. The inhibitive effects of Gemini imidazoline surfactants on copper in hydrochloric acid solution were studied by electrochemical polarization and impedance spectroscopy. It was found that the inhibitive efficiency depended on the structure of surfactants inhibitive, concentrations of surfactants inhibitive, solution concentration effect were investigated. The results show that Gemini imidazoline
more » ... nt has excellent inhibitive effect on copper in hydrochloric acid solution, and the inhibitive efficiency of Gemini imidazoline in hydrochloric acid solution is better than traditional monomer imidazoline surfactant. The higher the concentration of Gemini imidazoline surfactant, the better the inhibitive effect is.The lower the concentration of acid solution, the higher the inhibitive efficiency is.
doi:10.20964/2020.05.37 fatcat:ipmnosu27vcwzcxc5e2c626op4