Solvent extraction of Li+, H3O+ and NH4+ into nitrobenzene by using sodium dicarbollylcobaltate and calix[4]arene-bis(t-octylbenzo-18-crown-6)

Journal Article · Tue Jan 01 00:00:00 EST 2013 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-012-2255-3· OSTI ID:1089806

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) + NaL+ (nb) , ML+ (nb) + Na+ (aq) taking place in the two-phase water nitrobenzene system (M+ = Li+, H3O+, NH+4; 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: zH3O+ < Li+ < NH+4.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1089806
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Vol. 295, Issue 3; ISSN 0236--5731
• Country of Publication: United States
• Language: English