calcium carbonate vs titanium dioxide factories

A few non-dietary studies have reported adverse effects in the gastrointestinal tract of laboratory animals given food-grade TiO2. However, these same effects were not seen when the same or higher doses of food-grade TiO2 were administered in the animals' diet. Dietary studies best reflect how humans are exposed to TiO2 from food. Thus, the Food Directorate placed the most emphasis on the results of these studies in the state of the science report.

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  • The manufacturing process of TIO2 is equally intricate, involving either the sulfate or chloride route. The sulfate method, though less energy-intensive, has a longer production cycle, while the chloride route produces higher-grade TIO2 but requires more capital investment. Both processes involve multiple stages, including digestion, precipitation, calcination, and finally, classification and packaging.