Extraction of cesium by a nitrobenzene solution of sodium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5 |
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| Authors: | P Vaňura E Makrlík |
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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) Present address: 341 42 Kolinec 250, Czech Republic |
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| Abstract: | The extraction of microamounts of cesium by a nitrobenzene solution of sodium bis-1,2-dicarbollylcobaltate (Na+B−) in the presence of 15-crown-5 (15C5, L) has been investigated. The equilibrium data have been explained assuming the complexes
NaL+, NaL2
+, 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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