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http://nopr.niscpr.res.in/handle/123456789/18883| Title: | Role of Zn2+ in the inhibition of corrosion of mild steel by 1-hydroxyethane-1, 1-diphosphonic acid |
| Authors: | Rajendran, Susai Joany, R Maria Apparao, B V Palaniswamy, N |
| Issue Date: | May-2002 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 50 ppm sodium salt of 1-hydroxyethane-1,1-diphosphonic acid (HEDP) offered only 11% inhibition efficiency (IE) to corrosion of mild steel immersed in neutral aqueous environment containing 60 ppm chloride. When 50 ppm Zn2+ is added to 50 ppm HEDP, the IE increased to 98%. The influence of Zn2+ on the corrosion -inhibition by HEDP is discussed based on the results obtained from UV-visible, FTIR and luminescence spectra. Presence of Zn2+ facilitates. the transport of HEDP from the bulk of the solution to the metal surface; both the anodic reaction and cathodic reaction are controlled effectively. |
| Page(s): | 197-200 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.09(3) [May 2002] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 9(3) 197-200.pdf | 980.67 kB | Adobe PDF | View/Open |
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