Arsenic, copper and cadmium in sulfidic waters; thioarsenites as ligands for Cu(I).

摘要

Accurate predictions of metal solubility and mobility in sulfidic waters requires knowledge of the molecular formulas and stability constants of metal bisulfide complexes. This dissertation has two main objectives; (1) investigate metal speciation in sulfidic solutions containing both Cu(I) and As(III), evaluating the potential of thioarsenites as ligands for Cu(I) and (2) examine the solubility of CdS in alkaline sulfide solutions, exploring the impact of filtration and experimental artifacts on the measured solubilites.;The solubility of As and Cu in sulfidic solutions equilibrated with the ternary assemblage Cu;In alkaline sulfidic solutions of low ionic strength (