Kinetics of the complexation of ferric iron with 8-hydroxyquinoline and KELEX 100
Conference
·
· Sep. Sci. Technol.; (United States)
OSTI ID:6424676
The complexation reactions of ferric iron with 8-Hydroxyquinoline and KELEX-100 in both aqueous and methanol solutions were studied by using a stopped-flow spectrophotometer. In the aqueous solutions, the observed rate law was found to be first-order with respect to both iron(III) and oxine and inverse-first-order with respect to the hydrogen ion. While in the methanol solution, the rate law was first-order with respect to iron(III) and KELEX-100. Reaction pathes with the formation of the first complex, FeAS , from either FeT or Fe(OH)S were proposed to explain the observed rate law. The activation energies were found to be 5.5 kcal/g-mole and 15 kcal/g-mole for the aqueous and methanol solutions, respectively.
- Research Organization:
- Lamar Univ., Beaumont, TX
- OSTI ID:
- 6424676
- Report Number(s):
- CONF-851011-
- Conference Information:
- Journal Name: Sep. Sci. Technol.; (United States) Journal Volume: 22:2/3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALCOHOLS
AQUEOUS SOLUTIONS
AROMATICS
AZAARENES
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPLEXES
DATA
DISPERSIONS
ENERGY
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
IRON COMPLEXES
KINETICS
METHANOL
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXINE
PYRIDINES
QUINOLINES
REACTION KINETICS
SOLUTIONS
SPECTROPHOTOMETRY
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALCOHOLS
AQUEOUS SOLUTIONS
AROMATICS
AZAARENES
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPLEXES
DATA
DISPERSIONS
ENERGY
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
IRON COMPLEXES
KINETICS
METHANOL
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXINE
PYRIDINES
QUINOLINES
REACTION KINETICS
SOLUTIONS
SPECTROPHOTOMETRY
TRANSITION ELEMENT COMPLEXES