Titanium Dioxide

Titanium dioxide, also known as titanium oxide or Titania, is the naturally occurring oxide of titanium, chemical formula TiO2.Titanium dioxide is widely used to provide whiteness and opacity to products such as paints, plastics, papers, inks, foods, and toothpastes. It is also used in cosmetic and skin care products, and it is present in almost every sun block, where it helps protect the skin from ultraviolet light.

Applications

The most important application areas are paints and varnishes as well as paper and plastics, which account for about 80% of the world's titanium dioxide consumption. Other pigment applications such as printing inks, fibers, rubber, cosmetic products and foodstuffs account for another 8%. The rest is used in other applications, for instance the production of technical pure titanium, glass and glass ceramics, electrical ceramics, catalysts, electric conductors and chemical intermediates.

• Sunscreen and UV blocking

In cosmetic and skin care products, titanium dioxide is used as a pigment, sunscreen and a thickener. Titanium dioxide is found in the majority of physical sunscreens because of its high refractive index, its strong UV light absorbing capabilities and its resistance to discoloration under ultraviolet light. This advantage enhances its stability and ability to protect the skin from ultraviolet light.

• Photo catalyst

Titanium dioxide, particularly in the anatase form, is a photo catalyst under ultraviolet (UV) light. It has been reported that titanium dioxide, when doped with nitrogen ions or doped with metal oxide like tungsten trioxide, is also a photo catalyst under either visible or UV light.


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