ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
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
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.
Chemical Papers 60 (4) 293–296 (2006)