Solvent Extraction of Transition Metal Ions with Acyclic Polyethers Incorporating Several Heteroatoms and Bearing Heterocyclic Moieties as End Groups
作者:Hidefumi Sakamoto、Shigeki Ito、Makoto Otomo
DOI:10.1246/cl.1995.37
日期:1995.1
Nine acyclic polyethers incorporating oxygen, nitrogen and/or sulfur atoms were synthesized, which possess two heterocyclic groups at both ends of an ether chain, and metal ion extractabilities of these compounds were estimated using 1,2-dichloroethane - H2O system. On the solvent extraction of some transition metal ions as the nitrates, Ag+, Cu+ and Hg2+ were more effectively extracted with most of the reagents than the other metal ions. Addition of picrate ion into the aqueous phase of AgNO3 increased Ag+ extractability remarkably.
利用 1,2 二氯乙烷 - H2O 系统估算了这些化合物的金属离子萃取率。在溶剂萃取某些过渡金属离子(如硝酸盐)时,与其他金属离子相比,大多数试剂都能更有效地萃取 Ag+、Cu+ 和 Hg2+。在 AgNO3 水相中加入苦味酸根离子可显著提高 Ag+ 的萃取率。