Extraction of lithium with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5

Authors
Makrlik, E Vanura, P Dankova, M
Citation
E. Makrlik et al., Extraction of lithium with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5, J RAD NUCL, 242(1), 1999, pp. 185-187
Citations number
8
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
02365731 → ACNP
Volume
242
Issue
1
Year of publication
1999
Pages
185 - 187
Database
ISI
SICI code
0236-5731(199910)242:1<185:EOLWNS>2.0.ZU;2-H
Abstract
From extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium 2Li(+)(aq)+SrL22+(nb)reversible arrow 2LiL(+)(nb)+Sr2+(aq) taking place in the two-phase water-nitrobenzene system (L = 15-crown-5; aq = aqueous phase, nb = nitrobenzene phase) was e valuated as log K-ex(2Li(+);SrL22+) = -3.7. Further, the stability constant of the 15-crown-5 - lithium complex in nitrobenzene saturated with water w as calculated: log beta(nh)(LiL+) = 7.0.