... White carbon Silica, White carbon black,SiO2 white powder Using in rubber,tyre,sole,feed,food,medical ETC. WHITE SILICAChemical name: Silica, precipitated ... , hydrated, White carbon blackMolecular formula: SiO2 · nH2OAppearance: white granules or powderUse:It ... bag made of polypropylene. Net weight is 20KGs. Silica white CAS:14464-46-1