In 2017, French researchers from the Institut National de la Recherche Agronomique (INRAE) were among the first to examine the effects of E171 nanoparticles on the body. They fed rats a dose of 10mg of E171 per kilogram of body weight per day, which was similar to human exposure in food. The research, which was published in Scientific Reports, showed that E171 was able to traverse the intestinal barrier, pass into the bloodstream, and reach other areas of the body in rats. Researchers also found a link between immune system disorders and the absorption of titanium dioxide nanoparticles.
Amount: if too little titanium dioxide is added, the distance between particles is too large and there is not enough opacity, while if the titanium content is too high, the particles interfere with each other and poor efficiency is obtained.
Particle size: optimum particle size to produce maximum opacity is 200–300 nm.
cas: 13463-67-7 titanium dioxide powder factory. However, manufacturers are increasingly adopting more sustainable practices to minimize their environmental footprint. For instance, they are exploring alternative production methods such as the sulfate process, which uses sulfuric acid instead of chlorine gas, resulting in lower greenhouse gas emissions.
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