Kinetics of technetium reactions. V. reduction of Tc(VII) by uranium(IV) in HCl solution
Journal Article
·
· Sov. Radiochem. (Engl. Transl.); (United States)
OSTI ID:6015616
The authors find spectrophotometrically that the reaction of TcO/sub 4//sup -/ with U/sup 4 +/ in HCl solution occurs according to the reaction 2TcO/sub 4/ + 3U/sup 4 +/ + 4H/sup +/ + 10C1/sup -/ = 2TcCl/sub 5//sup -/ + 3UO/sub 2//sup 2 +/ + 2H/sub 2/O, the rate of which is given by the expression -d (Tc /SUP VII/ )/dt = k (Tc /SUP VII/ ) (U /SUP IV/ )/(H/sup +/). The rate constant is k = 152 + or - 9 min/sup -1/ at 60 degrees C for ionic strength mu = 2; the activation energy is E = 98.3 + or - 1.2 kJ/mole. The authors discuss the reaction mechanism.
- OSTI ID:
- 6015616
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 26:6; ISSN SVRDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ACTINIDE COMPOUNDS
ACTIVATION ENERGY
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
ELEMENTS
ENERGY
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
REDUCTION
REFRACTORY METAL COMPOUNDS
SPECTROPHOTOMETRY
TECHNETIUM
TECHNETIUM COMPOUNDS
TECHNETIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
WATER
400102* -- Chemical & Spectral Procedures
ACTINIDE COMPOUNDS
ACTIVATION ENERGY
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
ELEMENTS
ENERGY
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
REDUCTION
REFRACTORY METAL COMPOUNDS
SPECTROPHOTOMETRY
TECHNETIUM
TECHNETIUM COMPOUNDS
TECHNETIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
WATER