abrasives white corundum powder

corundum is suitable as iron-free medium and used for applications in the abrasive and refractory industry and as a jet-material in the aluminium-, optical and dental industry. Because of its transparency and its scratch resistance,
polishing white corundum is also used in resins and coatings in the laquer and laminate industry.
corundum chemical analysis
Al2O3: 99.2-99.7%
SiO2: 0.04%max
Na2O: 0.25-0.35%
Fe2O3: 0.04-0.08%

corundum technical data
Colour: white
Specific garvity: 3.95g/cm3
Hardness: Mohs 9
Melting point: 2250 °C