Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Influence of a cationic surfactant on the inhibition efficiency of calcium gluconate – Zn 2+ system

Influence of a cationic surfactant on the inhibition efficiency of calcium gluconate – Zn 2+ system The influence of a cationic surfactant, N‐cetyl‐N, N, N‐trimethyl ammonium bromide (CTAB) on the inhibition efficiency (IE) of calcium gluconate (CG) – Zn 2+ system in controlling corrosion of mild steel in a neutral aqueous environment containing 60ppm Cl ‐ has been evaluated by weight‐loss method. The formulation consisting of 200 ppm CG and 50ppm Zn 2+ has 86 per cent IE (immersion period = three days). Addition of various concentrations of CTAB to the above system improves the IE to 99 per cent. Presence of CTAB facilitates the transport of CG and Zn 2+ from the bulk of the solution to the metal surface. The nature of the protective film formed on the surface of mild steel has been analysed by FTIR and fluorescence spectra. The protective film is found to be fluorescent and to consist of iron‐CG complex, iron‐CTAB complex and Zn(OH) 2 . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

Influence of a cationic surfactant on the inhibition efficiency of calcium gluconate – Zn 2+ system

Download PDF
5 pages

Loading next page...
 
/lp/emerald-publishing/influence-of-a-cationic-surfactant-on-the-inhibition-efficiency-of-uiHifBAOpp

References (12)

Publisher
Emerald Publishing
Copyright
Copyright © 2000 MCB UP Ltd. All rights reserved.
ISSN
0003-5599
DOI
10.1108/00035590010309951
Publisher site
See Article on Publisher Site

Abstract

The influence of a cationic surfactant, N‐cetyl‐N, N, N‐trimethyl ammonium bromide (CTAB) on the inhibition efficiency (IE) of calcium gluconate (CG) – Zn 2+ system in controlling corrosion of mild steel in a neutral aqueous environment containing 60ppm Cl ‐ has been evaluated by weight‐loss method. The formulation consisting of 200 ppm CG and 50ppm Zn 2+ has 86 per cent IE (immersion period = three days). Addition of various concentrations of CTAB to the above system improves the IE to 99 per cent. Presence of CTAB facilitates the transport of CG and Zn 2+ from the bulk of the solution to the metal surface. The nature of the protective film formed on the surface of mild steel has been analysed by FTIR and fluorescence spectra. The protective film is found to be fluorescent and to consist of iron‐CG complex, iron‐CTAB complex and Zn(OH) 2 .

Journal

Anti-Corrosion Methods and Materials – Emerald Publishing

Published: Feb 1, 2000

Keywords: Steel; Corrosion inhibitors; Surfactants

There are no references for this article.