Titanium dioxide (TiO2) is a vital inorganic chemical product with extensive applications in coatings, inks, paper, plastics, ceramics, and other industries. As a polycrystalline compound, its particles are regularly arranged in a lattice structure, offering the lowest relative density among white pigments.

Chemically stable and classified as an acidic amphoteric oxide, TiO2 does not react with oxygen, nitrogen, or carbon dioxide at room temperature. It is insoluble in water, aliphatic solvents, and most inorganic acids, yet displays significant photochemical activity under ultraviolet irradiation, especially in its anatase form. This property makes it an excellent oxidation catalyst for specific industrial applications.