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Electrochemical dissolution of chalcopyrite studied by voltammetry of immobilized microparticles

Ľ. Pikna, L. Lux, and T. Grygar

Department of Chemistry, Faculty of Metallurgy, Technical University, 042 00 Košice, Slovakia

 

E-mail: Lubomir.Pikna@tuke.sk

Received: 30 January 2006  Revised: 28 March 2006  Accepted: 10 April 2006

Abstract: The characteristics of anodic electrochemical dissolution of chalcopyrite (CuFeS2) powder in hydrochloric acid medium with sodium chloride have been studied. Cyclic voltammetry and chronopotentiometry of immobilized microparticles using paraffin-impregnated graphite electrode was employed. Present work is focused on electrochemical identification of chalcopyrite cathodic and anodic reaction products within the potential range of −0.7 to +0.8 V (vs. SCE) in hydrochloric acid solution containing sodium chloride and/or copper(II) chloride.

Keywords: chalcopyrite - cyclic voltammetry - chronopotentiometry - immobilized microparticles

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-006-0051-7

 

Chemical Papers 60 (4) 293–296 (2006)

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