3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||184.0625 g/mol|
|Melting point||575 °C (1,067 °F; 848 K)|
|8.35g/100 mL (25 °C)|
|R-phrases (outdated)||R20, R21, R22, R34|
|S-phrases (outdated)||S26, S27, S36, S37, S39, S45|
|NFPA 704 (fire diamond)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
This exothermic reaction is conducted in liquid hydrogen fluoride. The salt is stable in hot alkaline aqueous solution, from which it can be recrystallized. The sodium and ammonium salts are more soluble in water whereas the rubidium and caesium salts are less so.
KPF6 is a common laboratory source of the hexafluorophosphate anion, a non-coordinating anion that confers lipophilicity to its salts. These salts are often less soluble than the closely related tetrafluoroborates.