Comparison of a cationic gemini surfactant and the corresponding monomeric surfactant for corrosion protection of mild steel in hydrochloric acid

Mohammad Mahdavian*, Ali Reza Tehrani-Bagha, Krister Holmberg

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

39 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)605-613
Number of pages9
JournalJournal of Surfactants and Detergents
Volume14
Issue number4
DOIs
Publication statusPublished - 1 Oct 2011
MoE publication typeA1 Journal article-refereed

Keywords

  • Acid inhibition
  • Cationic surfactant
  • EIS
  • Mild steel
  • Polarization

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