... 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 ... can make rubber products with light color or transparency. Used for [food]: It is white fine powder with high purity, high fluidity and ...