Titanium dioxide (chemical formula: titanium dioxide, white solid or amphoteric oxide powder, molecular weight: 79.9, is a kind of non-toxic, best covering power, whiteness and brightness of the best white pigment, is considered to be the world's best performance. Titanium dioxide has strong adhesion, it is not easy to chemical changes, always appear white. Widely used in coatings, plastic, papermaking, printing ink, chemical fiber, rubber, etc. Also used in the manufacture of refractory glass, clay, high temperature laboratory equipment, etc.