Study of Metal Complexes’ Solubility in Supercritical Carbon Dioxide

Yi Gang Ding; Hai Tao Huang; Yao Ding; Chang Yan Yang; Jun Ji; Yuan Xin Wu

doi:10.4028/www.scientific.net/AMR.236-238.411

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Study of Metal Complexes’ Solubility in Supercritical Carbon Dioxide

Abstract:

The solubility of 8-hydroxyquinoline lead, lead diethyldithiocarbamate, 8-hydroxyquinoline mercury and mercury diethyldithiocarbamate in supercritical carbon dioxide under different supercritical conditions was investigated by using supercritical extraction device. It was measured ranged from 308.15K to 328.15K for supercritical temperature, and 10 MPa to 30MPa for pressure. The solubility data of metal complexes were correlated and a mathematical model was put forward from a viewpoint of solvent association theory compared to Chrastil’s model. The results showed that SA model gives fairly good agreement with the experiment data.