Extraction of barium into nitrobenzene using hydrogen dicarbollylcobaltate in the presence of dibenzo-18-crown-6 |
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Authors: | E Makrlík P Vaňura |
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Institution: | (1) Faculty of Applied Sciences, University of West Bohemia, Husova 11, 306 14 Pilsen, Czech Republic;(2) Prague Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic |
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Abstract: | Summary Extraction of microamounts of barium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of dibenzo-18-crown-6 (DB18C6, L) has been investigated. The equilibrium data have been explained assuming
that the complexes HL+, BaL2+, BaL, BaHL3+and BaHL are 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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