Rajendran, S. and Mariajoany, R. and Palaniswamy, N. (2002) An encounteer with microheterogeneous systems as corrosion-inhibitors. Corrosion Reviews, 20 (03). pp. 231-254. ISSN 0334-6005

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Abstract

The inhibition efficiency of a cationic surfactant, N-cetyl-N,N,N-trimethyl ammonium bromide (CTAB), in controlling corrosion of carbon steel immersed in 60 ppm Cl- has been evaluated by weight loss method. The influence of CTAB on the inhibition efficiencies of several systems has been investigated. CTAB as a monomer accelerates corrosion; but as a micelle it controls corrosion. CTAB, at concentration equal to or greater than critical micelle concentration (CMC) lowers the inhibition efficiencies of some systems like sodium gluconate-Zn2+, 2-chloroethylphosphonic acid - Zn2+ amino (trimethylene phosphonic acid) - Zn2+, 1-hydroxyethane-1,1-diphosphonic acid-Zn2+. CTAB does not alter very much the inhibition efficiencies of some systems such as calcium gluconate, calcium gluconate-Zn2+. Zn2+ improves the inhibition efficiency of CTAB, below its CMC, but decreases the inhibition efficiency of CTAB, above its CMC. CTAB has biocidal activity as a monomer and also as a micelle

Item Type:	Article
Uncontrolled Keywords:	Corrosion inhibition; Micro heterogeneous systems; Mild steel; Surfactant
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	05 Apr 2012 10:37
Last Modified:	05 Apr 2012 10:37
URI:	http://cecri.csircentral.net/id/eprint/2446

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