Titanium dioxide is an inorganic substance, with the chemical formula of TiO2, a white solid or powdery amphoteric oxide, with a molecular weight of 79.9. It is considered to be a white pigment with good functions in the world today, with non-toxicity, good opacity, good whiteness and brightness. Titanium has strong adhesion, is not easy to change chemically, and is always white. Widely used in coatings, plastics, paper making, printing ink, chemical fiber, rubber, cosmetics and other industries. Its melting point is very high, and it is also used to make refractory glass, glaze, enamel, clay, high temperature-resistant experimental utensils, etc.