Melting Point 1843 °C
Boiling Point 2900 °C
Water Solubility Soluble in hot concentrated sulfuric acid, in hydrofluoric acid and alkali. Insoluble in water.
Density 4.17 g/mL at 25 °C(lit.)
Storage Temp Amber Vial, Refrigerator
Flash Point 2500-3000°C
Stability Light Sensitive
Appearance White powder
Refractive Index 2.5837