Calcined Alumina
Alumina, white crystallized powder, is made by calcining Aluminum Hydroxide and the chemical formula is Al2O3. It is a typical a-Alumina(Corundum) widely used. It is widely used for flame retarders, insulating materials, spark plug, IC board, abrasive, brightener and etc by high melting temperature, high mohs hardness, high electricity resistibility, stable reactivity to acid and alkali.
General Physical Properties
Mineral name
Corundum
Specific gravity
3.98
Melting temperature
2053°C
Refractive index
1.76
Mohs...