Published April 1999 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Atomic Energy Authority, Cairo (Egypt). Hot Laboratories Centre

Description

The extraction behavior of octahedral and tetrahedral cobalt(II) complexes from aqueous nitrate medium was studied in the system 8-hydroxyquinoline (HOX) and dibenzo-18-crown-6 (Db 18C6) or dibenzylamine (DBA) in chloroform at different temperatures to evaluate the thermodynamic functions as well as the equilibrium constants of each reaction. The stoichiometry of the extracted organic phase species were established to be Co(OX)2 x Db18C6 for the octahedral cobalt and Co(OX)2 x DBA for the tetrahedral cobalt. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
240
Journal Issue
1
Journal Page Range
p. 209-214
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
30022111
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AMINES; BENZYL RADICALS; COBALT; COBALT COMPLEXES; CROWN ETHERS; DISTRIBUTION FUNCTIONS; OXINE; SOLVENT EXTRACTION; TEMPERATURE DEPENDENCE; THERMODYNAMICS
Descriptors DEC
AROMATICS; ARYL RADICALS; AZAARENES; AZINES; COMPLEXES; ELEMENTS; ETHERS; EXTRACTION; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; PYRIDINES; QUINOLINES; RADICALS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS

Optional Information

Notes
10 refs.