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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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