Manufacturer Factory in China white corundum fine white corundum fine was made from the high quality aluminum oxide by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The aluminum oxide produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved. 2.white corundum fine physical properties and chemical composition white corundum fine Physical Properties 1 Color White 2 Hardness: Mohs 9.0 3 Bulk density 1.75-1.95 g/cm3 4 Specific Gravity 3.95g/cm3 5 Melting Point 2250℃ 6 maximum operation temperature 1900℃ white corundum fine chemical analysis 1 Total Al2O3 ≥99.3% 2 Total Fe2O3 ≤0.05% 3 TotalNa2O ≤0.03% 4 Total CaO ≤0.02% 5 Total K2O ≤0.01%  3. white corundum fine applications 1 Sandblasting Lapping, polishing 2 Surface treatment/finishing 3 Bonded abrasives and Coated abrasives 4 sand blasting in the process of TV screen 5 Ceramic Tiles special ceramics 6 Fluidized Bed Furnaces and Skin / Dental Care 7 Grinding high carbon steel, high-speed steel and chilled steel  white corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum finewhite corundum fine Packaging & Shipping Packaging Details 25kg PVC bags+1MT big bag. Port            Tianjin/Qingdao Port