CERIUM ISOTOPE PARTITION IN HNO3/TBP OR HDEHP EXTRACTION SYSTEMS

被引：5

作者：

DEMBINSKI, W

GORONCEK, K

PHUC, N

机构：

[1] Department of Radiochemistry, Institute of Nuclear Chemistry and Technology, Warsaw

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1991年 / 149卷 / 01期

关键词：

D O I：

10.1007/BF02053725

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The Ce-142/140 unit separation factors (q) for cerium(III)-cerium(IV) exchange reaction in an extraction system containing Ce(IV) in tri-n-butyl phosphate (TBP) or di(2-ethylhexyl) phosphoric acid (HDEHP) and Ce(III) in nitric acid were determined. The value of q was found to be 1.00054 +/- 0.00012 (2-sigma) in 6M HNO3/TBP and 1.00078 +/- 0.00028 in 6M HNO3/HDEHP extraction systems. The dehydration and complex formation processes and their contribution to reduced partition function ratios (RPFR's) are discussed.

引用

页码：169 / 176

页数：8

共 15 条

[1] CALCULATION OF EQUILIBRIUM CONSTANTS FOR ISOTOPIC EXCHANGE REACTIONS [J].