Corrosion inhibition of copper in 0.5 M hydrochloric acid by 1,3,4-thiadiazole-2,5-dithiol

被引:0
作者
Baeza, H [1 ]
Guzmán, M [1 ]
Ortega, P [1 ]
Vera, L [1 ]
机构
[1] Univ Catolica Norte, Fac Ciencias, Dept Quim, Antofagasta, Chile
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O6 [化学];
学科分类号
0703 ;
摘要
The inhibition of copper corrosion by 1,3,4-thiadiazole-2,5-dithiol (bismuthiol), under 0.5 M HCl at 25 degreesC, was studied by means of the potentiodynamic polarization technique. It was found that bismuthiol was chemically adsorbed on the copper surface, and follows a Langmuir isotherm. The inhibition mechanism was found to be mixed, and it was originated through the formation of bismutiol-copper complexes on the surface of the metal. Bismuthiol shows good inhibition efficiency under these conditions.
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页码:23 / 26
页数:4
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