Melting Point 2450°C
Boiling Point 3500°C
Water Solubility Insoluble in water.
Density 2.51 g/mL at 25 °C (lit.)
Storage Temp 2-8°C
Flash Point -
Stability Stable. Incompatible with oxidizing agents. Not flammable.
Appearance Black powder
Refractive Index -