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 |
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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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