Synthetic colorants anatase

Titanium dioxide is a large industrial commodity with world production over 4,000,000 tons but only a very small proportion is used as a food colorant. Commercial Ti02 is produced from the mineral ilmanite, which occurs in three crystalline forms, but the only one approved for food use is synthetic anatase. Anatase occurs in nature but only the synthetic version is approved because it contains fewer impurities.41... 

This dye exists in nature in three crystalline forms—anatase, brookite, and rutile—however, only one is used as an additive). It possesses an intense white color, is resistant to sunlight, oxidation, pH, and the presence of microbes. Only the synthetically produced titanium dioxide can be used as a food additive. This dye cannot be dissolved in all solvents. The allowed quantity of dye in foods is up to 1% and can be used in confectionery products in the formation of white parts as well as a background. Finally, it can be used in the production of pills and cosmetics. 

Titanium Dioxide - The seeond most important mineral filler for aeid papermaking is synthetic anatase titanium dioxide, Ti02. Anatase has become the opaeifying filler of ehoiee for acid papermakers. It is preferred over rutile despite its lower refractive index (2.5 vs. 2.7), because it has the blue-white color preferred to rutile s yellow-white. 

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