Oxidation of uranium dioxide by hydrogen peroxide in sulfuric acid medium
Creators
Description
The oxidation of uranium dioxide by hydrogen peroxide in sulfuric acid medium was studied. It was found that in the UO2-H2O2-Fe/sup (II,III)/-H2SO4 system, the value of the oxidation potential (OP) is determined by the amount of Fe/sup (III)/ ions formed as the result of the oxidation of ferrous oxide by hydrogen peroxide. At normal temperature, H2O2 displays its oxidizing activity with respect to uranium dioxide at OP values of 500-550 mV, and at elevated temperature (40-600C) and in the presence of iron ions, at 400-450 mV. In a wide range of pH values, hydrogen peroxide as oxidizing agent considerably surpasses oxidizing agents such as nitrous acid, manganese dioxide, manganates, and permanganates. The process proceeds vigorously not only with the participation of iron ions, but also in their absence
Additional details
Publishing Information
- Journal Title
- Sov. Radiochem. (Engl. Transl.)
- Journal Volume
- 29
- Journal Issue
- 3
- Series
- Sov. Radiochem. (Engl. Transl.).
- Journal Page Range
- 289-295
- ISSN
- 0038-576X
- CODEN
- SVRDA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19087177
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Translation
- Descriptors DEI
- ACTIVATION ENERGY; CHEMICAL REACTION KINETICS; COMPARATIVE EVALUATIONS; DISSOLUTION; HYDROGEN PEROXIDE; HYDROMETALLURGY; IRON COMPOUNDS; MANGANATES; MANGANESE OXIDES; NITROUS ACID; OXIDATION; OXIDIZERS; PERMANGANATES; PHASE STUDIES; REDOX POTENTIAL; SULFURIC ACID; TEMPERATURE DEPENDENCE; URANIUM DIOXIDE; VALENCE
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ENERGY; EVALUATION; EXTRACTIVE METALLURGY; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; MANGANESE COMPOUNDS; METALLURGY; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PEROXIDES; REACTION KINETICS; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES
Optional Information
- Notes
- Translated from Radiokhimiya; 29: No. 3, 303-309(May-Jun 1987).