White carbon black Precipitated silica white powder Molecular formula:SiO2nH2O Have rubber,tyre,sole,medicine,feed,food grade WHITE SILICAChemical name: Silica, precipitated, hydrated, White carbon blackMolecular formula: SiO2 · nH2OAppearance: white granules or powderUse:It is widely used in the shoe making and tyre industry, besides these it may be used for the following aspects such as husk ...