Rubber Grade Precipitated Silica Chemical name: SILICON DIOXIDE Molecular formula: SiO2 * nH2O Chemical structure: O=Si=O A high dispersion, high purity precipitated silica. Can significantly improve the wear resistance of the rubber compound, resistant to flexion performance, heating oxidation, instead of a large number of carbon black for high-performance tires, which can effectively reduce tire rolling resistance and reduce fuel consumption a