ELECTROCHEMICAL BEHAVIOR OF AgCu50 IN ALKALINE MEDIA IN THE PRESENCE OF CHLORIDES AND 2-MERCAPTOBENZOTHIAZOLE

  • Vesna Grekulovic University of Belgrade Technical Faculty in Bor
  • Mirjana Rajcic Vujasinovic University of Belgrade Technical Faculty in Bor
  • Aleksandra Mitovski University of Belgrade Technical Faculty in Bor
  • Ljubisa Balanovic University of Belgrade Technical Faculty in Bor

Abstract


Abstract

Electrochemical behavior of an alloy AgCu50, pure copper, and pure silver, respectively, was investigated by measuring the open circuit potentials using anodic potentiodynamic polarization and potentiostatic method in 0.1 moldm-3 NaOH + 0.02 moldm-3 NaCl solution, without and with adding 2-mercaptobenzothiazole in various concentrations (0.00001 – 0.001 moldm-3). Anodic polarization curves for AgCu50 alloy, showed four current peaks. Potentiostatic curves showed that values of the stationary current densities drop down with the increase of 2-mercaptobenzothiazole concentration in the electrolyte. The electrode surface was analyzed by optical microscopy after the potentiostatic oxidation. Micrographs confirmed that 2-mercaptobenzothiazole has got the inhibitory effect by forming the film of CuMBT and AgMBT which protect the electrode surface from corrosion.

Keywords: silver, copper, alloy AgCu50, potentiodynamic polarization, 2-mercaptobenzothiazole

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Published
2017/10/31
How to Cite
Grekulovic, V., Rajcic Vujasinovic, M., Mitovski, A., & Balanovic, L. (2017). ELECTROCHEMICAL BEHAVIOR OF AgCu50 IN ALKALINE MEDIA IN THE PRESENCE OF CHLORIDES AND 2-MERCAPTOBENZOTHIAZOLE. Journal of Mining and Metallurgy, Section B: Metallurgy, 53(3), 349. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/14343
Issue
Vol. 53 No. 3 (2017): Dragana Živković - Memmorial Issuue

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