Studies on the liquid-liquid extraction of nickel(II), zinc(II), cadmium(II), mercury(II) and lead(II) with 1-phenyl-3hydroxy-4-dodecyldithiocarboxylate-5-pyrazolone

被引：56
|
作者：
Oliva, A [1 ]
Molinari, A [1 ]
Zúñiga, F [1 ]
Ponce, P [1 ]
机构：
[1] Pontificia Univ Catolica Valparaiso, Inst Chem, Valparaiso, Chile
来源：
MICROCHIMICA ACTA | 2002年 / 140卷 / 3-4期
关键词：
solvent extraction; transition ions; pyrazolone-1; dithiocarboxylate;
D O I：
10.1007/s00604-002-0905-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The extraction behaviour of Ni(II), Zn(II), Cd(II), Hg(II) and Pb(II) from aqueous solution, as function of pH, has been investigated with chloroform solutions of 1-phenyl-3-hydroxy-4-dodecyldithiocarboxylate-5-pyrazolone (HDTC-12) as extractant. In each case, the extracted species was found to be M(DTC-12)(2) and the extraction constants were deduced by non-linear regression analysis. The results demonstrate that this ligand extracts selectively Hg(II) from Cd(II) as well as from Pb(II).
引用
收藏
页码：201 / 203
页数：3
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