Reduction of Au(CN)2- in Aqueous Solution. Formation of Nonmetallic Clusters and Colloidal Gold

Article abstract of DOI:10.1021/j100355a042

Au(CN)2^- is reduced by hydrated electrons and hydrogen atoms.Three primary reduction products, which are in protolytic equilibrium, are formed depending on pH: Au(CN)2^2- + 2H⁺ <--> Au(CN)2H^- + H⁺ <-->