Extraction of cesium by the nitrobenzene solution of hydrogen bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5 |
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| Authors: | P Vaňura E Makrlík Z Valentová |
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| Institution: | (1) Department of Analytical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague, Czech Republic;(2) Faculty of Education, Charles University, 116 39 Prague, Czech Republic;(3) V. Nezvala 758, 272 04 Kladno 4, Czech Republic;(4) Present address: 341 42 Kolinec 250, Czech Republic |
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| Abstract: | Extraction of microamounts of cesium by the nitrobenzene solution of H+ bis-1,2-dicarbollylcobaltate (H+B−) in the presence of 15-crown-5 (15C5, L) has been investigated. The equilibrium data have been explained assuming the complexes
HL+, HL2
+, CsL+ and CsL2
+ to be extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated
with water have been determined. |
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| Keywords: | |
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