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

• Authors: Emanuel Makrlík , Petr Vaňura , Pavel Selucký
• Languages of publication: EN

Abstracts

EN

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium C+(aq) + 1·Na+(nb) 1·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·C+ cationic complex species in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: triethanolammonium + [...]

Keywords

EN

Univalent organic cations; Benzo-18-crown-6; Complexation; Extraction and stability constants; Water - nitrobenzene system

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2012
• Volume: 10
• Issue: 5
• Pages: 1495-1499

Dates

published

1 - 10 - 2012

online

21 - 7 - 2012

Contributors

author

Emanuel Makrlík

• Faculty of Environmental Sciences, Czech University of Life Sciences, 165 21, Prague 6, Czech Republic

author

Petr Vaňura

• Department of Analytical Chemistry, Institute of Chemical Technology, 166 28, Prague 6, Czech Republic

author

Pavel Selucký

• Nuclear Research Institute, 250 68, Řež, Czech Republic

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Identifiers

DOI

10.2478/s11532-012-0052-z