White-fused alumina(Refractory material grade)character: 3-6mm Pharagraph Sand(Mid sodium) AL2O3> 99.2% SiO2 <0.06% Fe2O3 0.04%-0.05% Na2O <0.4% The main phase a-Al2O3 Hardness(Mohs) 9 Crystal six-square body Density(g/cm3)>3.85 Bulk density(g/cm3) 1.75-1.95 Color White Packaging: Automatic kraft paper packaging (25 kg / bag) 120 mesh powder (Mid sodium) Al2O3 99.2% SiO2 0.06% Fe2O3 0.05% Na2O 0.45 The main phase a-Al2O3 Hardness(Mohs) 9 Crystal six-square body Density>3.85g/cm3 Bulk density 1.64g/cm3 Color White Packaging: Automatic kraft paper packaging (25 kg / bag) White fused alumina to alpha-Al2O3-based crystal phase, using optimization alumina powder by the fixed or dumping furnace melting refining process, high density, high purity, good grinding, and small heat, high efficiency, Acid and corrosion Resistance, high temperature Resistance, good thermal stability. Using it to make mold, it is applied to high carbon copper and high-speed steel. Used in refractory, chemicals and building materials industries, it can be used to manufacture alumina bricks, pushing boards, corundum and other aspects of castable.