Kinetics of the complexation of ferric iron with 8-hydroxyquinoline and KELEX 100
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-
- Journal Information:
- Sep. Sci. Technol.; (United States), Vol. 22:2/3; Conference: 4. symposium on separation science and technology for energy applications, Knoxville, TN, USA, 20 Oct 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IRON COMPLEXES
CHEMICAL REACTIONS
OXINE
ACTIVATION ENERGY
AQUEOUS SOLUTIONS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
METHANOL
SPECTROPHOTOMETRY
ALCOHOLS
AROMATICS
AZAARENES
AZINES
COMPLEXES
DATA
DISPERSIONS
ENERGY
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
KINETICS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
QUINOLINES
REACTION KINETICS
SOLUTIONS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties