title: Solubility parameters and solubilities of metal dithiocarbamates in supercritical carbon dioxide.
abstract: The solubilities of Cu, Hg, and Zn complexes with seven different dithiocarbamate ligands in supercritical fluid CO(2) at 60 °C and two pressures (100 and 230 atm) are reported. In each metal chelate system, the solubility of the metal-dithiocarbamate complex shows a strong correlation with the solubility parameters of the ligands, calculated using a group contribution method. Dithiocarbamate ligands with smaller solubility parameter values form metal complexes with higher solubilities in supercritical CO(2). The solubility parameter value may provide a general guideline for selecting effective ligands for metal extraction in supercritical CO(2).
authors: Department of Chemistry, University of Idaho, Moscow, Idaho 83843.
authors: C M
authors: CM
authors: Wai
authors: S
authors: S
authors: Wang
authors: J J
authors: JJ
authors: Yu