|
|||||
|
|
On the complexation of some univalent cations with beauvericin in nitrobenzene saturated with water |
|
| Authors: | Emanuel Makrlík Pavel Selucky Petr Vaňura Petr Toman |
| Affiliation: | 1. Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Kamycká 129, 165 21, Prague 6, Czech Republic 2. Nuclear Research Institute, 250 68, ?e?, Czech Republic 3. Department of Analytical Chemistry, Institute of Chemical Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic 4. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského sq. 2, 162 06, Prague 6, Czech Republic |
| Abstract: | From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+(aq)?+?1·Cs+(nb) ? 1·M+(nb)?+?Cs+(aq) taking place in the two-phase water–nitrobenzene system (M+?=?Li+, Na+, K+, Rb+, H3O+, NH4 +, Tl+; 1?=?beauvericin; aq?=?aqueous phase, nb?=?nitrobenzene phase) were determined. Moreover, the stability constants of the 1·M+ complexes in water-saturated nitrobenzene were calculated; they were found to increase in the series of Rb+?+, H3O+?+?4 +? +?+. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |