Uranyl fluoride is theinorganic compound with the formula UO2F2. It is most notable as a contaminant in the production ofuranium tetrafluoride.[1]
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| Names | |
|---|---|
| IUPAC name Uranium fluoride oxide | |
| Other names Uranium oxyfluoride | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.033.529 |
| EC Number |
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| Properties | |
| UO2F2 | |
| Molar mass | 308.02 g/mol |
| Melting point | Decomposes @ 300 °C |
| Boiling point | Sublimes |
| Solubility in other solvents | VS |
| Hazards | |
| GHS labelling: | |
   | |
| Danger | |
| H300,H330,H373,H411 | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
As shown byX-ray crystallography, the uranyl (UO22+) centers are complemented by six fluoride ligands.[2]
This salt is very soluble in water as well ashygroscopic. It is formed in the hydrolysis ofuranium hexafluoride (UF6):
- UF6 + 2 H2O → UO2F2 + 4 HF
It can also be formed in the hydrofluorination ofuranium trioxide (UO3):
- UO3 + 2 HF → UO2F2 + H2O[3]
References
edit- ^Peehs, Martin; Walter, Thomas; Walter, Sabine; Zemek, Martin (2007). "Uranium, Uranium Alloys, and Uranium Compounds".Ullmann's Encyclopedia of Industrial Chemistry.doi:10.1002/14356007.a27_281.pub2.ISBN 978-3-527-30385-4.
- ^Zachariasen, W. H. (1948)."Crystal chemical studies of the 5f-series of elements. III. A study of the disorder in the crystal structure of anhydrous uranyl fluoride".Acta Crystallographica.1 (6):277–281.Bibcode:1948AcCry...1..277Z.doi:10.1107/S0365110X48000764.
- ^Jang, Harry; Louis-Jean, James; Poineau, Frederic (2023-06-20)."Synthesis and Morphological Control of UO2F2 Particulates".ACS Omega.8 (24):21996–22002.doi:10.1021/acsomega.3c01999.ISSN 2470-1343.PMC 10286299.PMID 37360455.
