Complexation of some univalent organic cations with benzo-18-crown-6 in nitrobenzene saturated with water

被引：0

作者：

Makrlik, Emanuel ^{[1
]}

Vanura, Petr ^{[2
]}

Selucky, Pavel ^{[3
]}

机构：

[1] Czech Univ Life Sci, Fac Environm Sci, Prague 16521 6, Czech Republic

[2] Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic

[3] Nucl Res Inst, CZ-25068 Rez, Czech Republic

来源：

CENTRAL EUROPEAN JOURNAL OF CHEMISTRY | 2012年 / 10卷 / 05期

关键词：

Univalent organic cations; Benzo-18-crown-6; Complexation; Extraction and stability constants; Water - nitrobenzene system; ALKALI-METAL CATIONS; INDIVIDUAL EXTRACTION CONSTANTS; ACIDIC RADIOACTIVE-WASTE; SOLVENT-EXTRACTION; HYDROGEN DICARBOLLYLCOBALTATE; MACROCYCLIC-COMPOUNDS; CYCLIC POLYETHERS; UNEX PROCESS; SYSTEM; STRONTIUM;

D O I：

10.2478/s11532-012-0052-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

From extraction experiments and gamma-activity measurements, the exchange extraction constants corresponding to the general equilibrium C+(aq) + 1 center dot Na+(nb) <=> 1 center dot C+ (nb) + Na+(aq) taking place in the two-phase water-nitrobenzene system (C+ = methylammonium, ethylammonium, propylammonium, ethanolammonium, diethanolammonium, triethanolammonium, cation TRIS+, hydrazinium, hydroxylammonium; 1 = benzo-18-crown-6; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the 1 center dot C+ cationic complex species in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: triethanolammonium < propylammonium < ethylammonium, diethanolammonium < methylammonium < ethanolammonium < cation TRIS+ < hydrazinium < hydroxylammonium.

引用

页码：1495 / 1499

页数：5

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