Photochemical reduction of the uranyl ion by phosphorus acid amides in aqueous solutions
Journal Article
·
· Sov. Radiochem. (Engl. Transl.); (United States)
OSTI ID:5454665
The authors investigate the photochemical reduction of the uranyl ion by hexamethyphosphoric triamide and hexaethylphosphoric triamide molecules in aqueous sulfuric acid solutions, upon irradiation with light of wavelength 313 nm. The quantum yield of the photoreduction has been determined at various HMPA concentrations. It has been shown that a maximum quantum yield is reached at equal concentrations of uranyl ion and HMPA. The relation between the quantum yield and the temperature has been found. A reaction mechanism which includes a transfer of an oxygen atom from the uranyl ion to the HMPA is proposed for the photo reduction of the uranyl ion by HMPA molecules.
- OSTI ID:
- 5454665
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Vol. 27:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
URANYL COMPOUNDS
PHOTOLYSIS
REDUCTION
AMIDES
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN
PHOSPHORIC ACID
QUANTITY RATIO
SULFURIC ACID
TEMPERATURE DEPENDENCE
ACTINIDE COMPOUNDS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
REACTION KINETICS
SOLUTIONS
URANIUM COMPOUNDS
YIELDS
400500* - Photochemistry
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
URANYL COMPOUNDS
PHOTOLYSIS
REDUCTION
AMIDES
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN
PHOSPHORIC ACID
QUANTITY RATIO
SULFURIC ACID
TEMPERATURE DEPENDENCE
ACTINIDE COMPOUNDS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
REACTION KINETICS
SOLUTIONS
URANIUM COMPOUNDS
YIELDS
400500* - Photochemistry
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials