Mark Bright

Titanium dioxide, also known as titanium oxide (IV) or titanium dioxide, is an inorganic compound with the chemical formula of TiO2. When used as a pigment, it is called titanium white, pigment white 6 (PW6) or CI 77891. It is a white, water-insoluble solid, although the mineral form may appear black. As a pigment, it has a wide range of applications, including paint, sunscreen and food pigments.
Titanium dioxide has been used as a bleaching and opacifying agent in porcelain enamels, giving them brightness, hardness, and acid resistance. In modern times it is used in cosmetics, such as in skin care products and sunscreen lotions, with claims that titanium dioxide protects the skin from ultraviolet radiation because of its property to absorb ultraviolet light.
The photocatalytic activity of titanium dioxide results in thin coatings exhibiting self-cleaning and disinfecting properties under exposure to ultraviolet radiation. Alloys are characterized by being lightweight and having very high tensile strength (even at high temperatures), high corrosion resistance, and an ability to withstand extreme temperatures and thus are used principally in aircraft, pipes for power plants, armour plating, naval ships, spacecraft, and missiles.
Because of its unique properties, titanium dioxide is widely used and is well known in nanoscience and nanotechnology. Titanium dioxide was one of the first materials to be used in nanotechnology products. However, the potential toxicity of titanium dioxide nanoparticles is a controversial subject. Many cosmetic companies use titanium dioxide nanoparticles. Because of its bright whiteness, it is used in products such as paints, coatings, papers, inks, toothpaste, face powder, and food colouring.