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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.17 [2010] >
IJCT Vol.17(2) [March 2010] >
| Title: | Inhibition of corrosion of copper by 2,5-dimercapto-1,3,4-thiadiazole in 3.5% NaCl solution |
| Authors: | Yadav, M
Sharma, Dipti |
| Keywords: | Copper
Corrosion inhibition
2,5-Dimercapto-1,3,4-thiadiazole |
| Issue Date: | Mar-2010 |
| Publisher: | CSIR |
| Abstract: | The inhibitor 2,5-dimercapto1,3,4-thiadiazole shows
94.48 percent inhibition efficiency in controlling corrosion of copper in
3.5%NaCl solution at pH 7.0. The mechanistic aspects of corrosion inhibition, based
on the results obtained from the weight loss method, potentiostatic polarization
study, AC-impedance study, UV-visible absorption study and surface study by
FTIR, ESCA and SEM have been discussed. The inhibitor 2,5-dimercapto-1,3,4-thiadiazole
appears to inhibit corrosion process through formation of protective film which
was found to consist of Cu(I)-inhibitor complex, cuprous chloride, CuCl or CuCl2- complex ion or
both and no oxide of copper on the surface. |
| Page(s): | 95-101 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.17(2) [March 2010]
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