Solvent extraction of mercury(II) from hydrochloric acid with 1,2-bis(hexylthio)ethane.
スポンサーリンク
概要
- 論文の詳細を見る
Solvent extraction of mercury(II) from hydrochloric acid with 1,2-bis(hexylthio)ethane (=BHTE=\barS) in 1,2-dichloroethane has been studied at 30 °C. Mercury(II) was found to be extracted into pure 1,2-dichloroethane without extractants, which is due to the physical partition of the neutral species, HgCl<SUB>2</SUB>. The partition coefficient, <I>K</I><SUB>D</SUB>, was evaluated as <I>K</I><SUB>D</SUB>=0.314. It was clarified that the extraction mechanism with BHTE can be explained in terms of solvation by BHTE and that 1:1 metal: the ligand complex is formed in the organic phase as follows.<BR>\barS+HgCl<SUB>2</SUB>\rightleftharpoons‾HgCl<SUB>2</SUB>·S <I>K</I><SUB>e</SUB><BR>The extraction equilibrium constant, <I>K</I><SUB>e</SUB>, was evaluated as <I>K</I><SUB>e</SUB>=1.61×10<SUP>3</SUP> dm<SUP>3</SUP> mol<SUP>−1</SUP>.
- 公益社団法人 日本化学会の論文