Comparison of a Cationic Gemini Surfactant and the Corresponding Monomeric Surfactant for Corrosion Protection of Mild Steel in Hydrochloric Acid
Journal article, 2011

A cationic gemini surfactant, N,N'-didodecyl-N,N,N',N'-tetramethyl-1,4-butanediammonium dibromide (12-4-12) and the corresponding monomeric surfactant dodecyltrimethylammonium bromide were compared with respect to corrosion inhibition efficiency in 1 M hydrochloric acid solution. Polarization and electrochemical impedance spectroscopy were used to evaluate corrosion inhibition. The 12-4-12 surfactant showed an extremely high corrosion inhibition efficiency at very low concentration. Surface tension measurements performed under the strongly acidic conditions revealed that the gemini surfactant is remarkably electrolyte tolerant, which is beneficial for adsorption at the steel surface.


Mild steel

Cationic surfactant


Acid inhibition


M. Mahdavian

Sahand University of Technology

Institute for Color Science and Technology

Ali Tehrani

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Krister Holmberg

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Journal of Surfactants and Detergents

1097-3958 (ISSN)

Vol. 14 4 605-613

Subject Categories

Chemical Sciences



More information