SYNERGISTIC EXTRACTION OF EUROPIUM WITH DIDODECYLMONOTHIOPHOSPHORIC ACID AND 1,10-PHENANTHROLINE

被引：3

作者：

KONDO, K ^{[1
]}

NAKASHIO, F ^{[1
]}

OHTSUBO, H ^{[1
]}

机构：

[1] KYUSHU UNIV,DEPT ORGAN SYNTH,HIGASHI KU,FUKUOKA 812,JAPAN

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 1992年 / 10卷 / 04期

关键词：

D O I：

10.1080/07366299208918127

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Extraction equilibrium of europium from acetate media with didodecylmonothiophosphoric acid (HR) and 1,10-phenanthroline (PHEN) in toluene diluent was measured at 303K. The equilibrium equation of this synergistic extraction system was found to be written as follows. Eu3+ aq + 3 HR(org) + PHEN(org) half arrow right over half arrow left EuR3.PHEN(org) + 3 H+ aq The extraction equilibrium constant, K(ex, syn) = (2.0 +/- 0.3) x 10(2) m3/mol was obtained according to this equation.

引用

页码：655 / 662

页数：8

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