Views: 0 Author: Alex Publish Time: 2026-02-14 Origin: Site
Hardness: The Mohs hardness is 8.5-9.5, and the microhardness can reach 17300MPa. Its hardness is similar to diamond and it is one of the hardest substances in nature.
Melting point and boiling point: The melting point is 2870 ℃, the boiling point is 6000 ℃, and it can still maintain its hardness at high temperatures.
Density: The density is about 15.8g/cm ³.
Solubility: Insoluble in water, hydrochloric acid, and sulfuric acid, easily soluble in mixed acids of nitric acid and hydrofluoric acid.
