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Titanium dioxide - an important white pigment for many products

Titanium dioxide -White pigments

Titanium dioxide TiO2 is an exceptional chemical compound due to its ultra-white color. In addition to its ability to scatter and reflect light, TiO2 is resistant to UV radiation and can absorb it as well.

Titanium dioxide is therefore found in many essential everyday products (e.g. sunscreens) and makes a significant contribution to improving the quality of life and facilitating economic growth.

TER Chemicals offers a vast application experience in specialty chemicals and has a long history as a titanium dioxide supplier. 

Titanium dioxide (TiO2), also known as food additive E171, is an oxide of titanium. The chemical compound is insoluble in water and has an extremely high melting point (1843 degrees Celsius) and boiling point (2972 degrees Celsius).

Titanium dioxide is a powder and is among the whitest and brightest pigments available. However, this is not the only property that makes it so versatile.

White pigments usually appear slightly yellowish. But titanium dioxide is able to absorb UV radiation so well that it has a pure white appearance. Moreover, the ultrafine chemical can act as a photocatalyst to reduce the amount of pollutants in the environment.

Titanium dioxide has a higher refractive index than diamonds. It is therefore very widely used in the production of cosmetics and personal care products (e.g. sunscreen).

Titanium dioxide can be produced as either pigments or nan-sized particles. Both forms of TiO2 are tasteless and odorless and are insoluble in water.

Feel free to approach TER Chemicals to find out more about our TiO2 products. As an experienced supplier of specialty chemicals we can support you with our application expertise.

There are three naturally occurring forms of titanium oxide (TiO2): rutile, anatase and brookite. Each of these polymorphs has its own crystal structure and density.

In addition to the three naturally occurring forms, there are another eight forms of titanium dioxide that can be produced synthetically.

Titanium metal is very rare in nature. It is also very expensive and resource-intensive to produce titanium from ilmenite (iron ore) or rutile. As a result, the use of titanium dioxide is preferred.

Pure titanium dioxide (TiO2) can be extracted using either the sulfate or chloride process. Both methods involve converting ilmenite ore or titanium slag (a derivative) into pure TiO2.

Titanium dioxide consists of one titanium atom and two oxygen atoms. Considered a chemically inert compound, titanium dioxide is chemically stable, inexpensive and versatile, making it one of the most important white pigments today. It is authorized for use as a food additive and can be found in almost all paints and coatings, thus establishing itself as an integral part of our everyday lives.

Industries

As a relevant white pigment, TiO2 is an important component of paints, varnishes. Of course, the substance is known here as the "perfect white", but also forms the basis for many other colors. It can be recognized under the color index C.I. Pigment White 6 or C.I. 77891. The high refractive index makes it possible for the color pigment to scatter light, thus ensuring a luminous, opaque and reflective quality in paints and coatings.

Titanium dioxide is also used in plastics and coatings. For example, it acts as an ideal UV filter in plastic window frames. Furthermore, TiO2 acts as a photocatalyst that renders pollutants from the air ineffective and is therefore used as a coating in solar panels or wind turbines. 

Titanium oxide is also used in foods that acquire a brilliant white color through the addition of the additive - such as chewing gum or dragées. It is designated as food additive E 171.

In addition, TiO2 is often an ingredient in toothpaste, which does not cause white teeth due to the titanium dioxide particles, but does give the toothpaste a white color. In addition, the substance has an abrasive effect due to its fine nanoparticles, which removes deposits and tartar.

Titanium dioxide is used in numerous cosmetics, paper, pharmaceuticals and sun creams. It is mostly used as a UV blocker or brightener. 

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