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Interaction of gold(I) with thiosulfate–sulfite mixed ligand systems

Perera, W.N., Senanayake, G. and Nicol, M.J.ORCID: 0000-0002-8757-161X (2005) Interaction of gold(I) with thiosulfate–sulfite mixed ligand systems. Inorganica Chimica Acta, 358 (7). pp. 2183-2190.

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The Au(I)-SO32- - S2O32- system was studied at 25°C and at I = 0.1 M NaClO4 using hydrodynamic voltammetry, gold potentiometry, UV-Vis spectrophotometry and Raman spectroscopy. The presence of two mixed-ligand species, Au(S 2O3)(SO3)3- and Au(S 2O3)(SO3)25-, was detected from the Raman experiments and supported by the gold potentiometric experiments. The stepwise formation constant, log K11r, for the reaction Au(S 2O3)23-+rSO32-⇔Au(S2O3)(SO3)r-(2r+1)+S2O32- was found to be 1.1 (r = 1) and 4.8 (r = 2) from the hydrodynamic voltammetric experiments.

Item Type: Journal Article
Murdoch Affiliation(s): Parker Cooperative Research Centre for Integrated Hydrometallurgy Solutions
Publisher: Elsevier BV
Copyright: © 2004 Elsevier B.V.
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