Molybdenum(V) fluoride is an inorganic compound with the formula MoF5. It is a hygroscopic yellow solid. Like most pentafluorides, it exists as a tetramer.[2]
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IUPAC names
Molybdenum(V) fluoride
Molybdenum pentafluoride | |
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
F5Mo | |
Molar mass | 190.94 g·mol−1 |
Appearance | yellow solid |
Density | 3.44 g/cm3 |
Melting point | 45.7 °C (114.3 °F; 318.8 K)[1] |
Boiling point | 50 °C (122 °F; 323 K)[1] (sublimes) |
Thermochemistry | |
Heat capacity (C)
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96.6 J/mol·K |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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oxidizer, hydrolyzes to release HF |
Flash point | Non-flammable |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Molybdenum(V) fluoride is produced by the reaction of molybdenum and molybdenum hexafluoride:[3]
It can also be prepared by the reduction of molybdenum hexafluoride with phosphorus trifluoride or tungsten hexacarbonyl, or by the oxidation of elemental molybdenum with fluorine at 900 °C.[3]
About 165 °C, it disproportionates to the tetra- and hexafluoride:[1]
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