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http://nopr.niscpr.res.in/handle/123456789/7011| Title: | Corrosion inhibition of brass by thiocarbamides |
| Authors: | Taha, K K Sheshadri, B S Ahmed, M F Muralidharan, V S |
| Keywords: | Brass;Corrosion inhibition;Thiocarbamide;Perchloric acid |
| Issue Date: | Mar-2006 |
| Publisher: | CSIR |
| IPC Code: | C23F11/00 |
| Abstract: | Thiocarbamides namely thiocarbamide (TC), ethylenethiocarbamide (ETC) and thiobenzamide (TBA) have been used as corrosion inhibitors for (70/30) brass in 0.1 M HClO4. The inhibitor efficiency (% P) calculated using weight loss, Tafel line extrapolation, linear polarization and impedance methods has been found to be in the order: TBA > ETC > TC. Thiocarbamides adsorbed on the electrode surface inhibited the corrosion of brass. They adsorb following Flory-Huggins isotherms. The number of water molecules displaced was found to increase with molecular size. TC, ETC and TBA displaced 3, 4 and 10 molecules and caused a distortion at the metal solution interface. The inhibitor molecule may form complexes with the dissolved Cu and Zn ions. This may result in the formation of a film. |
| Page(s): | 128-134 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.13(2) [March 2006] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 13(2) 128-134.pdf | 630.47 kB | Adobe PDF | View/Open |
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