Extraction of barium from water into nitrobenzene using cesium dicarbollylcobaltate in the presence of 18-crown-6

Authors
Dankova, M Vanura, P Makrlik, E
Citation
M. Dankova et al., Extraction of barium from water into nitrobenzene using cesium dicarbollylcobaltate in the presence of 18-crown-6, ACH-MODEL C, 137(4), 2000, pp. 539-546
Citations number
11
Categorie Soggetti
Chemistry
Journal title
ACH-MODELS IN CHEMISTRY
ISSN journal
12178969 → ACNP
Volume
137
Issue
4
Year of publication
2000
Pages
539 - 546
Database
ISI
SICI code
1217-8969(2000)137:4<539:EOBFWI>2.0.ZU;2-2
Abstract
Extraction of microamounts of barium with a nitrobenzene solution of cesium dicarbollylcobaltate (Cs+B-) in the presence of 18-crown-6 (18C6, L) has b een investigated. The equilibrium data have been explained assuming that th e complexes CsL+, CsL2+, BaL2+ and BaL22+ are extracted into the organic ph ase. The values of extraction and stability constants of the species in nit robenzene saturated with water have been determined.