Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-bis(t-octylbenzo-18-crown-6)

E. Makrlík; P. Selucký; P. Vaňura; B. A. Moyer

doi:10.1007/s10967-012-1897-5

Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-bis(t-octylbenzo-18-crown-6)

E. Makrlík, P. Selucký, P. Vaňura, B. A. Moyer

Chemical Separations Group

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M⁺ (aq) + CsL⁺ (nb) ML⁺ (nb) + Cs⁺ (aq) taking place in the two-phase water-nitrobenzene system (M⁺ = K⁺, Rb⁺, NH₄⁺, Ag⁺, Tl⁺; L = calix[4]arene-bis(t-octylbenzo-18-crown-6); aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML⁺ complexes in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: NH₄ ⁺ < K⁺ < Ag⁺ < Rb⁺ < Tl⁺.

Original language	English
Pages (from-to)	1015-1018
Number of pages	4
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	295
Issue number	2
DOIs	https://doi.org/10.1007/s10967-012-1897-5
State	Published - Feb 2013

Funding

Acknowledgments This work was supported by the Grant Agency of Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Project No.: 42900/1312/3114 ‘‘Environmental Aspects of Sustainable Development of Society’’ and by the Czech Ministry of Education, Youth, and Sports (Project MSM 6046137307). The participation of BAM was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basis Energy Sciences, US Department of Energy.

Funders	Funder number
Czech Ministry of Education, Youth, and Sports	MSM 6046137307
Czech University of Life
Grant Agency of Faculty of Environmental Sciences
Office of Basis Energy Sciences
US Department of Energy
Chemical Sciences, Geosciences, and Biosciences Division

Keywords

Calix[4]arene-bis(t-octylbenzo-18-crown-6)
Complexation
Extraction and stability constants
Univalent cations
Water-nitrobenzene system

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title = "Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-bis(t-octylbenzo-18-crown-6)",

abstract = "From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+ (aq) + CsL+ (nb) ML+ (nb) + Cs+ (aq) taking place in the two-phase water-nitrobenzene system (M+ = K+, Rb+, NH4+, Ag+, Tl+; L = calix[4]arene-bis(t-octylbenzo-18-crown-6); aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML+ complexes in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: NH4 + < K+ < Ag+ < Rb+ < Tl+.",

keywords = "Calix[4]arene-bis(t-octylbenzo-18-crown-6), Complexation, Extraction and stability constants, Univalent cations, Water-nitrobenzene system",

author = "E. Makrl{\'i}k and P. Seluck{\'y} and P. Va{\v n}ura and Moyer, {B. A.}",

year = "2013",

month = feb,

doi = "10.1007/s10967-012-1897-5",

language = "English",

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AU - Makrlík, E.

AU - Selucký, P.

AU - Vaňura, P.

AU - Moyer, B. A.

PY - 2013/2

Y1 - 2013/2

N2 - From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+ (aq) + CsL+ (nb) ML+ (nb) + Cs+ (aq) taking place in the two-phase water-nitrobenzene system (M+ = K+, Rb+, NH4+, Ag+, Tl+; L = calix[4]arene-bis(t-octylbenzo-18-crown-6); aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML+ complexes in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: NH4 + < K+ < Ag+ < Rb+ < Tl+.

AB - From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+ (aq) + CsL+ (nb) ML+ (nb) + Cs+ (aq) taking place in the two-phase water-nitrobenzene system (M+ = K+, Rb+, NH4+, Ag+, Tl+; L = calix[4]arene-bis(t-octylbenzo-18-crown-6); aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML+ complexes in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: NH4 + < K+ < Ag+ < Rb+ < Tl+.

KW - Calix[4]arene-bis(t-octylbenzo-18-crown-6)

KW - Complexation

KW - Extraction and stability constants

KW - Univalent cations

KW - Water-nitrobenzene system

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Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-bis(t-octylbenzo-18-crown-6)

Abstract

Funding

Keywords

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