coatings titanium dioxide suppliers

JECFA previously assessed titanium dioxide at its 13th meeting, at which time the expert committee assigned a “not specified” ADI for the additive due to an absence of significant absorption and a lack of toxicological effects in the available experimental animal and human studies. Since its original evaluation by JECFA, titanium dioxide has become a public point of contention, with its ban being introduced (and then subsequently withdrawn) in California legislation in 2023, a legal battle playing out in the EU over the additive’s ban and classification as a carcinogen in 2022, and the European Food Safety Authority (EFSA) calling titanium dioxide unsafe. However, supporters of titanium dioxide say that claims about its dangers are founded in unreliable studies, and some recent research has supported its safety as a food additive.

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  • Washed with ethanol nZnS-BaS0 4 crystalline cake, washing the filter cake drying cabinet at 105 ° C after drying lh pulverized by atomic absorption detection zinc, barium yield, in order to reach 98.4% based on zinc, barium meter 99%, ZnS mass fraction accounted for 36.6%. The total mass fraction of zinc sulfide and barium sulfate reached 99.22%, and the mass fraction of ZnS accounted for 36.6%. The particle size of barium sulfide is larger than that of zinc sulfide, which is 77 nm and 38 calendars respectively. The indicators of tinting strength and oil absorption exceed the GB/T1707-1995 B311 type.

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  • Scientists analyzed research that examined how titanium dioxide nanoparticles interact with the brain for a 2015 review published in Nanoscale Research Letters. The researchers wrote: “Once the TiO2 NPs are translocated into the central nervous system through [certain] pathways, they may accumulate in the brain regions. For their slow elimination rates, those NPs could remain in the brain zones for a long period, and the Ti contents would gradually increase with repeated exposure.” After reviewing dozens of studies, the scientists concluded: “Long-term or chronic exposure to TiO2 nanoparticles could potentially lead to the gradually increased Ti contents in the brain, which may eventually induce impairments on the neurons and glial cells and lead to CNS dysfunction as a consequence.”

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  • In the pigment industry, rutile titanium dioxide is widely used due to its brightness and extremely high refractive index, which provides excellent hiding power in paints, plastics, paper, inks, fibers, and foods. It is the most common white pigment because of its non-toxicity, stability, and ability to reflect all colors of light equally. The use of rutile titanium dioxide in paint formulations ensures long-lasting, vibrant colors that are resistant to fading caused by exposure to sunlight.

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