... rubber,tyre,sole,medicine,feed,food grade WHITE SILICAChemical name: Silica, precipitated, hydrated, White carbon blackMolecular formula: SiO2 · ... and oil absorber, etc.Standard:No.ItemSpecificationsAnalysis Result1AppearanceWhite granular powderWhite granular powder2SiO2 %≥90933Specific surface area-BET,m2/g140-2301984Na2SO4 ... of polypropylene. Net weight is 20KGs. Precipitated Silica tyre grade