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Names | |
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IUPAC names
Uranium hexafluoride
Uranium(VI) fluoride | |
Identifiers | |
3D model (JSmol)
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Abbreviations | hex |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.029.116 |
EC Number |
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2923 | |
PubChem CID
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RTECS number |
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UNII | |
UN number | 2978 (<1% 235U) 2977 (>1% 235U) |
CompTox Dashboard (EPA)
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Properties | |
UF6 | |
Molar mass | 352.02 g/mol |
Appearance | Colorless solid |
Density | 5.09 g/cm3, solid |
Boiling point | 56.5 °C (133.7 °F; 329.6 K) (sublimes, at atmospheric pressure) |
Hydrolyzes | |
Solubility |
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Structure | |
Orthorhombic, oP28 | |
Pnma, No. 62 | |
Octahedral (Oh) | |
0 | |
Thermochemistry | |
Std molar
entropy (S⦵298) |
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Std enthalpy of
formation (ΔfH⦵298) |
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Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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Toxic, corrosive, radioactive[3] |
GHS labelling: | |
Danger | |
H300, H330, H373, H411 | |
NFPA 704 (fire diamond) | |
Flash point | Non-flammable |
Safety data sheet (SDS) | ICSC 1250 |
Related compounds | |
Other anions
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Uranium hexachloride |
Other cations
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Related uranium fluorides
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Uranium hexafluoride, sometimes called hex, is an inorganic compound with the formula UF6. Uranium hexafluoride is a volatile and toxic white solid that reacts with water, releasing corrosive hydrofluoric acid. The compound reacts mildly with aluminium, forming a thin surface layer of AlF3 that resists any further reaction from the compound. UF6 is used in the process of enriching uranium, which produces fuel for nuclear reactors and nuclear weapons.