不对称烷基亚砜对Hg(II)萃取行为的研究  

Study on the extraction of mercury(II) with unsymmetrical sulfoxide

作　　者：赵焱[1] 陈国庆[1] 文净[2] 阿芳[1] 范茂魁 

机构地区：[1]云南师范大学化学化工学院,云南昆明650092 [2]浙江医药高等专科学校,浙江宁波315100 [3]昆明消防指挥学校,云南昆明650208

出　　处：《云南师范大学学报（自然科学版）》2004年第1期49-52,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：云南省自然科学基金资助项目(2003B0014Q);云南省教育厅基金资助项目(03Y313A)

摘　　要：　文章在高氯酸介质中研究了正-戊基己基亚砜(n-PHSO)对Hg(II)的萃取行为,用斜率法确定萃合物的组成是Hg(ClO4)2·(n-PHSO)2,求得了平衡常数。考察了酸度和稀释剂对n-PHSO萃取Hg(II)的影响,并比较了正-戊基己基亚砜(n-PHSO)、正-丁基辛基亚砜(n-BOSO)、正-己基环己烷亚砜(n-HCHSO)、正-丁基戊基亚砜(n-BPSO)、二苯亚砜(BPSO)等几种不对称亚砜对Hg(II)萃取能力的大小。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.

关 键 词：不对称烷基亚砜 汞 萃取剂 二苯亚砜 正-丁基戊基亚砜 萃取能力 

分 类 号：O614.243[理学—无机化学] O652.62[理学—化学]