Product Description Supply white aluminium oxide sand,a kind of high-grade refractories, was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina 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. Brand Name: haixu abrasives Model Number: 20#-220# Usage: grinding polishing cutting Material Aluminum oxide chemical&physical composition Al2O3 â?¥99.5% Fe2O3 â?¤0.04% Na2O â?¤0.26% SIO2 â?¤0.02% Bulk density: 1.75-1.95g/cm3 Specific Gravity â?¥3.95g/cm3 min Packaging & Shipping Packaging Details 25kg PVC bags+1MT big bag. Port Tianjin/Qingdao Port