Abstract
The equilibrium relationships in the systems Au-CN-H2O and Ag-CN-H2O have been investigated with the aid of the DIAGRAM computer program and thermodynamic data taken from the literature. On the basis of stability diagrams such as Eh-pH, log[Me]-pH, and log[CN]-pH, a discussion is pre-sented of the behavior of gold and silver in cyanide solutions. It is shown that gold and silver have similar behaviors in cyanide media; both metals exhibit wide solubility domains with di-cyanide complexes predominating. Solid AgCN is stable only in solutions of low pH and high silver/cyanide ratio; the species Ag(CN)3 2- and Ag(CN) 4 3 form only in concentrated cyanide solutions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 455-463 |
| Number of pages | 9 |
| Journal | Metallurgical Transactions B |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 1 1985 |
All Science Journal Classification (ASJC) codes
- Engineering(all)
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Xue, T., & Osseo-Asare, K. (1985). Heterogeneous equilibria in the Au-CN-H2O and Ag-CN-H2O systems. Metallurgical Transactions B, 16(3), 455-463. https://doi.org/10.1007/BF02654844