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Electrochemical study of gold dissolution in cyanide solution

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Abstract

Cyclic voltammetric and potential step chronoamperometric techniques were used to study gold dissolution in cyanide solution. Three distinct anodic peaks and one cathodic peak appear on the voltammogram between −0.50 and 0.80 V vs. SCE. The corresponding reactions were proposed to explain the peaks and the passivations. The proposed reactions were in agreement with the effect ofpH and cyanide an the magnitude of the peak currents. Cyclic voltammetric tests, with various vertex potentials, were also conducted to examine the proposed reactions. Steady-state currents at various potentials were obtained by potential step chronoamperometric technique and were compared with transient currents obtained by the cyclic voltammetric technique.

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Authors and Affiliations

  1. University of Alaska, Fairbanks, Alaska, USA

    H. K. Lin (Professor) & X. Chen (former graduate student)

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  1. H. K. Lin
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  2. X. Chen
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Lin, H.K., Chen, X. Electrochemical study of gold dissolution in cyanide solution. Mining, Metallurgy & Exploration 18, 147–153 (2001). https://doi.org/10.1007/BF03402888

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  • DOI: https://doi.org/10.1007/BF03402888

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