It can split water molecules or decompose organic compounds when exposed to light, which is a promising feature for environmental clean-up operations and renewable energy initiatives It can split water molecules or decompose organic compounds when exposed to light, which is a promising feature for environmental clean-up operations and renewable energy initiativesr 5566 titanium dioxide. Furthermore, when titanium dioxide nanoparticles are incorporated into cement or concrete, they can endow self-cleaning properties to architectural surfaces by promoting the breakdown of pollutants like nitrogen oxides under UV light.“Unlike some other chemicals used in food, titanium dioxide has no nutritive, preservative, or food safety function—its use is purely cosmetic,” said CSPI principal scientist for additives and supplements, Thomas Galligan. “The prospect of titanium dioxide nanoparticles damaging DNA is concerning enough for us to recommend consumers avoid foods that have it.”
Following a request for assessment in 2020 by the EU, the European Food Safety Authority (EFSA) assessed E171, particularly for its genotoxicity. In 2022, the agency deemed the food additive no longer safe for use.
In the European domestic market, however, the cost support from increasing freight charges kept the valuation of imported volumes high, and the average CFR NWE discussions were assessed at USD 3800 per tonne in the fourth quarter of 2021.