High purity Alumina Exclusive for Saphire Production Package:Pack with alumina foil bag, and triple layer paper bag, 25kgs/bag. High purity Alumina Exclusive for Saphire Production Product Name: Alumina; Molecular Formula: Al2O3; CAS#: 1344-28-1; Molecular Weight: 101.9 Technical Specifications Model AppearanceProduct NameAl2O3 content, %Original Diameter, nmD50, μmGranulation Particle Size, μ ...