Chemistry:Uranium trifluoride
From HandWiki
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| Names | |
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| Other names
Trifluorouranium
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| Properties | |
| UF3 | |
| Molar mass | 295.024 g/mol[1] |
| Appearance | purple solid[2] |
| Density | 8.9 g/cm3[1] |
| Melting point | 1,495 °C (2,723 °F; 1,768 K)[1] |
| Structure | |
| Rhombohedral, hP24 | |
| P63cm, No. 185[3] | |
a = 0.7181 nm, c = 0.7348 nm
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Lattice volume (V)
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0.32815 |
Formula units (Z)
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6 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Uranium trifluoride is an inorganic chemical compound with the chemical formula UF3.
Synthesis
Uranium trifluoride can be obtained by reacting uranium(IV) fluoride with aluminium at 900 °C or with uranium:[4]
- [math]\displaystyle{ \mathrm{UF_4 + Al \longrightarrow UF_3 + AlF} }[/math]
- [math]\displaystyle{ \mathrm{3 \ UF_4 + U \longrightarrow 4 \ UF_3} }[/math]
References
- ↑ 1.0 1.1 1.2 Haynes, William M., ed (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.97. ISBN 1439855110.
- ↑ Holleman, Arnold F.; Wiberg, Egon; Wiberg, Nils (2007) (in de). Lehrbuch der anorganischen Chemie. Berlin. p. 1969. ISBN 978-3-11-017770-1. OCLC 180963521.
- ↑ Zachariasen, W. H. (1949). "Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types". Acta Crystallographica 2 (6): 388–390. doi:10.1107/S0365110X49001016. http://journals.iucr.org/q/issues/1949/06/00/a00194/a00194.pdf.
- ↑ Brauer, Georg (ed.) (1978) Handbuch der Präparativen Anorganischen Chemie. Vol 3. Enke, Stuttgart. ISBN:3-432-87813-3. p. 1207
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