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Titanium Dioxide (TiO2), a naturally occurring oxide of titanium, exists in two primary crystalline forms - Anatase and Rutile. Among these, Rutile TiO2, with its superior whiteness and high refractive index, has garnered significant attention in the coating sector. Its exceptional good whiteness imparts a brilliant, clean appearance to coatings, making it an indispensable ingredient in various applications such as architectural coatings, plastics, paper, and even food.

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The disadvantage of Titanium Dioxide is that it's not cosmetically elegant, meaning it's a white, unspreadable mess. Sunscreens containing Titanium Dioxide are often hard to spread on the skin and they leave a disturbing whitish tint. The cosmetic industry is, of course, really trying to solve this problem and the best solution so far is using nanoparticles. The itsy-bitsy Nano-sized particles improve both spreadability and reduce the whitish tint a lot, but unfortunately, it also introduces new health concerns. 

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One of the key factors that affect the precipitation of titanium dioxide is the precipitation percentage, which is the percentage of titanium sulfate that is converted to titanium hydroxide during the reaction. The precipitation percentage is influenced by a variety of factors, including the concentration of titanium sulfate, the pH of the reaction mixture, the temperature, and the reaction time.


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precipitation

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In conclusion, NIOSH's work on titanium dioxide underscores the importance of balancing the benefits of this versatile material with the need for occupational safety and health. By conducting research, setting exposure limits, and promoting best practices, NIOSH ensures that the use of TiO2 in industries remains safe and sustainable. As technology advances and new applications emerge, NIOSH's role in protecting worker health in relation to TiO2 will continue to be vital.

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