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 ... for [soles]: It is reinforcing filler for rubber soles with high reinforcing effect as that of carbon black, and it can make rubber ...