Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/5911| Title: | Corrosion inhibition and biocidal activity of a cationic surfactant |
| Authors: | Shanthy, P Rengan, P Chelvan, A Thamarai Rathika, K Rajendran, S |
| Keywords: | Corrosion inhibition;Carbon steel;Biocidal activity;N-Cetyl-N,N,N-trimethyl ammonium bromide (CTAB);CTAB-Zn2+ system |
| Issue Date: | Jul-2009 |
| Publisher: | CSIR |
| Abstract: | The inhibition efficiency (IE) of CTAB - Zn2+ system in controlling corrosion of carbon steel in well water has been evaluated by weight loss method. Enumeration of microorganisms from well water and biocidal efficiency of inhibitor system (CTAB-Zn2+) were also determined by serial dilution technique and spread plate method. The formulation consisting of 200 ppm of CTAB and 5 ppm of Zn2+ shows an IE of 98%. Potentiodynamic polarization curves indicate that the CTAB – Zn2+ system functions as anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal surface. FTIR spectra suggest that the protective film consists of Fe2+- CTAB complex and Zn(OH)2. The optimum concentration of CTAB for destroying the bacterias viz. E.coli, Salmonella and Shigella is ³ 25 ppm. At ³ 25 ppm of CTAB, it shows 100% biocidal efficiency in well water containing 5 ppm of Zn2+. |
| Page(s): | 328-333 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.16(4) [July 2009] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 16(4) 328-333.pdf | 638.68 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.