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Ingeniería y Desarrollo

Print version ISSN 0122-3461
On-line version ISSN 2145-9371

Abstract

PEREZ DOMINGUEZ, Julio César  and  HIGUERA COBOS, Óscar Fabián. Electrochemical behaviour of cyanide. Ing. Desarro. [online]. 2008, n.24, pp.63-76. ISSN 0122-3461.

In this work of investigation one studied the effect of the pH, the cyanide concentration and the oxygen concentration dissolved in solution on the adsorption phenomena and cyanide reduction using a glass coal electrode. It was observed that independent of the cyanide concentration in solution, the pH of the solution is smaller (aerated solutions) the current associated to the wave in - 0,95 V versus SCE is more important that to pH's majors (deaireated solutions), so that it can be happening a competition between ions cyanide and hidroxil when adsorbing itself on the surface of the electrode to pH's majors, and low dissolved oxygen concentrations.

Keywords : Cyanide; Cyclic voltammetry; glass coal electrode (GCE).

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