Again and again on everyone’s lipsTitanium dioxide and the scientific characterization of its properties
Titanium dioxide is an important white pigment, an important photocatalyst and is characterized by high chemical resistance. It has been used in a wide range of products such as batteries, food, ceramics, plastics, paper, sunscreen formulations, inks and wall paints. It can occur as a dry powder, dispersed in liquids or also bound in coatings and is characterized by very different properties and possible interactions.
The use is not always undisputed, assessments of possible uses can change over the years. Scientific studies and data lead to decisions by authorities, e.g. about the use or phasing out of E171 as a food additive [More on this: see link in press release on LUM website]. Decisions are challenged through legal channels, and sound scientific results are also required for the legal confirmation or reversal of official decisions. A classification by the EU Commission in 2019 of TiO2 powder as carcinogenic was overturned by the Court of Justice of the European