Titanium dioxide, an inorganic compound, chemical formula for TiO2, is a white solid or powdered amphoteric oxide, molecular weight 79.866, with non-toxic, the best opacity, the best whiteness and brightness, is considered to be the world's best performance of a white pigment. Titanium white has strong adhesion, is not easy to change chemically, and is always white. Widely used in coating, plastic, paper, printing ink, chemical fiber, rubber, cosmetics and other industries. It has a very high melting point and is also used to make refractory glass, glazes, enamel, clay, and high temperature resistant experimental vessels. Titanium dioxide can be extracted from rutile by acid decomposition or obtained from titanium tetrachloride decomposition.

There are two main crystalline forms of titanium dioxide: Anatase and Rutile. Rutile titanium dioxide is more stable and dense than anatase titanium dioxide, has higher hardness, density, dielectric constant and refractive index, and its hiding power and coloring power are also higher. Anatase titanium dioxide has higher reflectivity and blue tint than rutile titanium dioxide in the short-wave part of visible light, and has lower ultraviolet absorption capacity and higher photocatalytic activity than rutile. Anatase titanium dioxide can be converted into rutile titanium dioxide under certain conditions.

Titanium dioxide is an important white pigment and porcelain glaze. Used in paint, ink, plastic, rubber, paper, chemical fiber, watercolor pigments and other industries.

Titanium dioxide is the whitest thing in the world, and 1 gram of titanium dioxide can paint an area of more than 450 square centimeters white. It is 5 times whiter than the commonly used white pigment - zinc barium white, so it is the best pigment for mixing white paint.

In the rubber industry, titanium dioxide is also used as a filler for white rubber. The pigment additive titanium dioxide can be safely used in general colored food.

Titanium dioxide, as a catalyst for light paint pigments, is not only an environmentally safe cleaner, but also can save energy and protect environmental resources.

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Titanium dioxide, an inorganic compound, chemical formula for TiO2, is a white solid or powdered amphoteric oxide, molecular weight 79.866, with non-toxic, the best opacity, the best whiteness and brightness, is considered to be the world's best performance of a white pigment.

應用

TiO2 has very valuable optical properties, and has shown a good development prospect in the automotive industry and many fields. Nano TiO2 also has high chemical stability, thermal stability, super hydrophilic, non-migration, so it is widely used in anti-ultraviolet materials, textiles, photocatalytic catalysts, self-cleaning glass, sunscreen, paint, ink, food packaging materials, paper industry, aerospace industry, lithium batteries.