Melting Point 845 °C (lit.)
 Boiling Point 1681 °C
 Water Solubility 0.29 g/100 mL (20 ºC)
 Density 2.64 g/mL at 25 °C (lit.)
 Storage Temp Store at +5°C to +30°C.
 Flash Point 1680°C
 Stability Stable, but hygroscopic. Hydrolyzes in the presence of water to form hydrofluoric acid, which attacks glass - do not store in glass bottles. Incompatible with aqueous solutions, strong acids, strong oxidizing agents.
 Appearance White to off-white random crystals
 Refractive Index 1.3915