Study on the extraction of mercury(II) with unsymmetrical sulfoxide
ZHAO Yan~1,CHEN Guo-qing~1,WEN Jing~2,A Fang~1,FAN Mao-kui~3 (1.Department of Chemistry, Yunnan Normal Uniersity, Kunming 650092,China; 2.Zhejiang High Grade Medicine Junior College, Ningbo 315100,China; 3.Kunming Fire Command School, Kunming 650208,China)
The extraction behavior of mercury(II) by n-amylhexyl sulfoxide(n-PHSO) in perchloric acid medium has been studied. The composition of the extracted complex was determined by the slope method as Hg(ClO_4)_2·(n-PHSO)_2. The extraction equilibrium constant was calculated to 2.29. The effects of acid and solvent on extraction of mercury(II) with n-PHSO were investigated. Moreover, the extraction ability of mercury(II) with different unsymmetrical sulfoxides has been compared with each other.