Comparison of a Cationic Gemini Surfactant and the Corresponding Monomeric Surfactant for Corrosion Protection of Mild Steel in Hydrochloric Acid
Artikel i vetenskaplig tidskrift, 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.

EIS

Mild steel

Cationic surfactant

Polarization

Acid inhibition

Författare

M. Mahdavian

Sahand University of Technology

Institute for Color Science and Technology

Ali Tehrani

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Krister Holmberg

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Journal of Surfactants and Detergents

1097-3958 (ISSN)

Vol. 14 4 605-613

Ämneskategorier

Kemi

DOI

10.1007/s11743-011-1252-9