Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-(2,3-naphthylene-crown-6,crown-6)

被引：8
|
作者：
Kvicalova, Magdalena [1 ]
Makrlik, Emanuel [1 ]
Vanura, Petr [2 ]
Asfari, Zouhair [3 ]
机构：
[1] Czech Univ Life Sci, Fac Environm Sci, Prague, Czech Republic
[2] Univ Chem & Technol, Dept Analyt Chem, Prague, Czech Republic
[3] Inst Pluridisciplinaire Hubert Curien, Lab Chim Analyt & Sci Separat, Strasbourg, France
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2015年 / 209卷
关键词：
Univalent cations; Calix[4]arene-(2,3-naphthylene-crown-6,crown-6); Complexation; Extraction and stability constants; Water nitrobenzene system; ACIDIC RADIOACTIVE-WASTE; WATER-NITROBENZENE; CYCLIC POLYETHERS; UNEX PROCESS; METAL-SALTS; VALINOMYCIN; COMPLEXES; 1,2-DICHLOROETHANE; 1,3-ALTERNATE; CONSTANTS;
D O I：
10.1016/j.molliq.2015.03.060
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
On the basis of extraction experiments and gamma-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+ (aq) + 1.Cs+ (nb) reversible arrow 1.M+ (nb) + Cs+ (aq) occurring in the twophase water nitrobenzene system (M+ = NH4+, K+, Rb+, Ag+, Tl+; 1 = calix[4]arene-(2,3-naphthylene-crown-6,crown-6); aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Moreover, the stability constants of the proven 1.M+ cationic complexes were calculated; they were found to increase in the cation sequence of NH4+ <K+ < Rb+ < Cs+ < Ag+ < Tl+. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：149 / 152
页数：4
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