Titanium dioxide is an important inorganic chemical pigment whose main component is titanium dioxide. There are two production processes for titanium dioxide: sulfuric acid method and chlorination method. It has important uses in industries such as coatings, inks, papermaking, plastics and rubber, chemical fibers, and ceramics.   Main features   physical properties   1. Relative density Among commonly used white pigments, titanium dioxide has the smallest relative density. Among white pigments of the same mass, titanium dioxide has the largest surface area and the highest pigment volume.   2. Melting point and boiling point   Since the anatase form converts to the rutile form at high temperatures, the melting and boiling points of anatase titanium dioxide are virtually non-existent. Only rutile titanium dioxide has a melting point and a boiling point. The melting point of rutile titanium dioxide is 1850°C, the melting point in air is (1830±15)°C, and the melti...