Kinetics and mechanism of the complex formation reactions between Cu(II) and Fe(III) aqueous species and a. beta. -hydroxy oxime in toluene
- Argonne National Lab., IL
The kinetics of the complex formation reaction between Cu(II) and Fe(III) aqueous species, present in a 2 MCl/sup -/ medium, and a ..beta..-hydroxy oxime (2-hydroxy-5-tert-octylacetophenone oxime) dissolved in toluene has been studied by using a highly stirred apparatus which allows the contribution of interfacial film diffusion processes to the measured rate to be assumed equal to zero. The results obtained have indicated that the reactions take place at the interface. Rate laws have been measured. These rate laws have been explained by assuming as rate-determining steps certain interfacial reactions. The low values of the complex formation rate constants have been explained as being derived from the particular nature of the molecular environment where the reactions take place. A qualitative description of the physicochemical properties of the aqueous-organic interface and their influence on the rate of the interfacial chemical reactions has been also proposed in terms of interfacial structuring effects and interfacial steric effects. A reaction scheme where A (associative), I/sub d/ (dissociative interchange), and SCS (sterically controlled substitution) mechanisms are simultaneously operative has been suggested.
- OSTI ID:
- 6693422
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 84:25
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinetic and thermodynamic separation of Cu(II) and Fe(III) by liquid-liquid extraction with a. beta. -hydroxy-oxime in toluene
Extraction of copper with 2-hydroxy-5-nonylbenzophenone oxime and the catalytic role of Bis(2-ethylhexyl)phosphoric acid
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER
AMPEROMETRY
COPPER CHLORIDES
CHEMICAL REACTION KINETICS
COPPER COMPLEXES
CHEMICAL PREPARATION
IRON
IRON CHLORIDES
IRON COMPLEXES
OXIMES
AQUEOUS SOLUTIONS
INTERFACES
TOLUENE
AMINES
AROMATICS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
COPPER COMPOUNDS
COPPER HALIDES
DISPERSIONS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROXY COMPOUNDS
IRON COMPOUNDS
KINETICS
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
REACTION KINETICS
SOLUTIONS
SYNTHESIS
TITRATION
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)