Decomposition of Uranyl Fluoride between 700° and 950°C
| Autor: | L. M. Ferris, F. G. Baird |
|---|---|
| Rok vydání: | 1960 |
| Předmět: |
Thermogravimetric analysis
Renewable Energy Sustainability and the Environment Thermal decomposition Analytical chemistry chemistry.chemical_element Uranyl fluoride Condensed Matter Physics Oxygen Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Reaction rate constant chemistry Materials Chemistry Electrochemistry Sublimation (phase transition) Helium Chemical decomposition Nuclear chemistry |
| Zdroj: | Journal of The Electrochemical Society. 107:305 |
| ISSN: | 0013-4651 |
| DOI: | 10.1149/1.2427685 |
| Popis: | The thermal decomposition of uranyl fluoride was stadied by a thermogravimetric technique between 700 and 950 deg C. At temperatures below 900 deg C, the main decomposition reaction is 3 UO/sub 2/F/sub 2/ yields 2/3 U/sub 3/O/sub 8/ + UF/sub 6/ + 1/3 O/sub 2/. In an atmosphere of dry helium, the rate of decomposition was first order with respect to uranyl fluoride. The rate constants, determined with a constant helium flow rate of 270 cc (STP)/min, were k = 3.72 x l0/sup 11/ exp (-7l,800/RT). Sublimation of uranyl fluoride, as a parallel, first order process, occurred at temperatures above 825 deg C. (auth) |
| Databáze: | OpenAIRE |
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