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

页码：149 / 152

页数：4

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