Titanium dioxide (TiO2) is an important inorganic chemical products, in coating, ink, paper, plastic rubber, chemical fiber, ceramics and other industries have important applications. A major source of titanium dioxide is the white pigment titanium dioxide. The scientific name is titanium dioxide, and the molecular formula is TiO2, a polycrystalline compound, with regular particle arrangement and a lattice structure. Titanium dioxide has the smallest relative density. The production process of titanium dioxide includes sulfuric acid and chlorination.