Titanium dioxide is a white, inorganic pigment and is a white dust that has a high whitening quality, superior coverage and resistance to color changes. The commercial titanium dioxide (TI02) is not pure, is a synthetic pigment. It is solid in ambient temperature and starts boiling between 2500-3000 C.
A white pigment, TIO2 reflects light, gives whiteness, covers impurities, and resistant to harsh weather conditions and therefore is one of the indispensable raw materials for plastics, paints, inks, papers and food industry.
Titanium dioxide (TiO2) is a food colorant known with the code E171. It is also known as the titanium white. It is mostly used in paints and sun lotions as it distributes the light in an even way, adds whiteness to paints and covers and also brightness and opacity.

Uses

Titanium dioxide is used in many white products in the food industry like candies, chewing gums, baking powder.
The most important function of titanium dioxide is its provision of pigments, and ensures whiteness, brightness and opaqueness in plastics, sheets, ink, fiber, medication and cosmetics.



Titanium dioxide is the most widely used white pigment. Only the diamonds have a higher refractive index than the titanium dioxide. The refractive index is the measurement of the bending capability of the light. This ensures the capability of opaqueness and coverage. Only magnesium oxide is whiter than titanium dioxide. However the refractive index of this material is less than titanium dioxide. This means that more magnesium oxide is needed to ensure the required opaqueness. Therefore, in practice, titanium dioxide is preferred. Titanium dioxide, by the help of this feature, is used as a white color to cover the surfaces, and also to separate the layers in products and also as a whitening agent in toothpastes. Titanium dioxide is also a mineral that is used as a thickener, whitener, lubricator and stopper of sunlight. It protects the skin from UVA and UVB radiation and doesn’t have a risk of irritating the skin.



The most widespread use of the catalyst effect of the light, in other words the photo-catalyst function is for prevention of pollution. So when light and proper materials come together, it automatically cleans. In day time, UV emission is around one milliwatts on a square centimeter. For the light we use in the buildings, this drops down to one in one thousand. When UV rays at this level come together with titanium dioxide, the cleaning starts. However, titanium dioxide used for photocatalytic effect and the ones used in cosmetics and food industry are different. The photocatalytic effect of the titanium dioxide, when it comes together with the light, it destroys the organics it touches. When this is used positively, it destroys the undesired organics around (dirt, germs, bacteria etc)
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