Effect of temperature on the extraction of octahedral and tetrahedral cobalt(II) by 8-hydroxyquinoline and/or dibenzo-18-crown-6 or dibenzylamine

Authors
Shehata, FA El-Dessouky, SI Aly, HF
Citation
Fa. Shehata et al., Effect of temperature on the extraction of octahedral and tetrahedral cobalt(II) by 8-hydroxyquinoline and/or dibenzo-18-crown-6 or dibenzylamine, J RAD NUCL, 240(1), 1999, pp. 209-214
Citations number
10
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
02365731 → ACNP
Volume
240
Issue
1
Year of publication
1999
Pages
209 - 214
Database
ISI
SICI code
0236-5731(199904)240:1<209:EOTOTE>2.0.ZU;2-F
Abstract
The extraction behavior of octahedral and tetrahedral cobalt(II) complexes from aqueous nitrate medium was studied in the system 8-hydroxyquinoline (H OX) and dibenzo-18-crown-6 (Db 18C6) or dibenzylamine (DBA) in chloroform a t different temperatures to evaluate the thermodynamic functions as well as the equilibrium constants of each reaction, The stoichiometry of the extra cted organic phase species were established to be Co(OX)(2). Db18C6 for the octahedral cobalt and Co(OX)(2). DBA for the tetrahedral cobalt.