Synergistic extraction of some univalent cations into nitrobenzene by using cesium dicarbollylcobaltate and calix[4]arene-...

Journal Article · Mon Dec 31 23:00:00 EST 2012 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-012-1897-5· OSTI ID:1089805

Makrlik, Emanuel ^[1]; Selucky, P. ^[2]; Vanura, Petr ^[3]; Moyer, Bruce A ^[4]

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1. Czech University of Life Sciences, Prague, Kamy´cká
2. Nuclear Research Institute, Rez, Czech Republic
3. Institute of Chemical Technology, Prague, Czech Republic
4. ORNL

From extraction experiments and c-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+, NH+4,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: NH+4 < K+ < Ag+ < Rb+ < Tl+.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1089805
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 2 Vol. 295; ISSN 0236-5731
• Country of Publication: United States
• Language: English