Model Number: 0-1 1-3 3-5 5-8 200# 320# Brand Name: Baiyun Key Specifications/Special Features: Bauxite(aluminoussoil;Bauxite)isalsocalledthealuminaorbauxite,mainingredients arealumina,hydratedaluminacontainingimpurities,isanearthymineral.Whiteorgray,brownand yelloworlightredbyiron.From4to3.9g/cm3density,hardness,1~3isnottransparent,verybrittle.Verydifficult tomelt.Insolubleinwater,solubleinsulfuricacid,sodiumhydroxidesolution.Mainlyusedfor aluminium,refractorymaterial. GradeAL2O3FE2O3 TI02 K2O+Na20 CaO+MgO Bulk density 75 75min ≤3.0 ≤4.0 ≤0.3 ≤0.5 ≥2.70 80 80min ≤3.0 ≤4.0 ≤0.3 ≤0.5 ≥2.80 85 85min ≤2 ≤4.0 ≤0.3 ≤0.5 ≥3.00 86 86min ≤2 ≤4.0 ≤0.3 ≤0.5 ≥3.10 87 87min ≤2 ≤4.0 ≤0.3 ≤0.5 ≥3.20 88 88min ≤1.8 ≤4.0 ≤0.25 ≤0.5 ≥3.25 90 90min ≤1.8 ≤4.0 ≤0.25 ≤0.5