- The most common type of titanium dioxide is known as rutile. Rutile titanium dioxide is known for its excellent durability and weather resistance, making it ideal for outdoor applications such as paints and coatings. It also has a high refractive index, which means it is very effective at scattering and reflecting light, making it a popular choice for use in cosmetics and sunscreens.
EFSA's evaluation is related to the risks of TiO2 used as a food additive, not to other uses.
- Plastiques et caoutchouc : pour la pigmentation des élastomères naturels et synthétiques. Effets bénéfiques sur la résistance à la lumière et au vieillissement des produits en caoutchouc, amélioration des performances rhéologiques des mélanges de caoutchouc. L'abrasion et l'usure des outils de poinçonnage et de coupe, des calandres et des extrudeuses sont extrêmement faibles.
- China's TiO2 manufacturers have been investing heavily in research and development to improve the quality and performance of their products. They have been focusing on developing innovative formulations and production processes to meet the diverse needs of the market.
Titanium dioxide is a mineral that’s used as a white coloring in a variety of products, including sunscreens, cosmetics, paints, and plastics. The pigment grade is also known as titanium white, pigment white 6, or CI 77891; it's the whitest and brightest of all known pigments.
Drivers
Some consumer advocacy groups and health agencies — particularly, those at the Environmental Working Group — have been pushing federal officers at the Food and Drug Administration (FDA) to reconsider their existing rules on the additive, which is commonly found in processed snacks and sweets.
The calcined product obtained by the ordinary zinc-barium white preparation method is beaten into a slurry, which is then surface-treated with sodium silicate, aluminum sulfate or sodium aluminate and surfactant, and then filtered, washed, dried and pulverized. Can.
Titanium dioxide is predominantly used as a pigment in products such as paints, coatings, plastics, food, cosmetics, and paper. The ability of TiO2 to scatter light and provide a white color makes it an essential ingredient in achieving high-quality finishes in these applications. However, the production of titanium dioxide can be complex and costly, given that it involves raw materials such as ilmenite and rutile, as well as advanced processing technologies. Manufacturers are continuously striving to optimize costs without compromising quality, making the search for affordable suppliers a top priority for many businesses.
2. Barite calcination method A solution of barium sulfide is prepared. The sulfuric acid and zinc oxide are reacted, purified by adding potassium permanganate and zinc powder, and compressed to obtain a zinc sulfate solution. Then, the prepared barium sulfide solution is mixed and subjected to a metathesis reaction to obtain a mixture of zinc sulfide and barium sulfate, and then the precipitate is subjected to pressure filtration, calcination, wet grinding, drying, and pulverization to obtain a zinc white product.
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Prof Maged Younes, Chair of EFSA’s expert Panel on Food Additives and Flavourings (FAF), said: “Taking into account all available scientific studies and data, the Panel concluded that titanium dioxide can no longer be considered safe as a food additive . A critical element in reaching this conclusion is that we could not exclude genotoxicity concerns after consumption of titanium dioxide particles. After oral ingestion, the absorption of titanium dioxide particles is low, however they can accumulate in the body”.
