Praseodymium(IV) fluoride (also praseodymium tetrafluoride) is a binary inorganic compound, a highly oxidised metal salt of praseodymium and fluoride[1] with the chemical formula PrF4.
Names | |
---|---|
Other names
tetrafluoropraseodymium, praseodymium tetrafluoride
| |
Identifiers | |
| |
3D model (JSmol)
|
|
ChemSpider |
|
PubChem CID
|
|
| |
| |
Properties | |
F4Pr | |
Molar mass | 216.90127 g·mol−1 |
Appearance | light-yellow crystals |
Density | g/cm3 |
reacts with water | |
Hazards | |
GHS labelling: | |
Warning | |
Related compounds | |
Other cations
|
CeF4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
|
Praseodymium(IV) fluoride can be prepared by the effect of krypton difluoride on praseodymium(IV) oxide:[2]
Praseodymium(IV) fluoride can also be made by the dissolution of sodium hexafluoropraseodymate(IV) in liquid hydrogen fluoride:[3]
Praseodymium(IV) fluoride forms light yellow crystals. The crystal structure is anticubic and isomorphic to that of uranium tetrafluoride UF4. It decomposes when heated:
Due to the high normal potential of the tetravalent praseodymium cations (Pr3+ / Pr4+: +3.2 V), praseodymium(IV) fluoride decomposes in water, releasing oxygen, O2.