- Titanium dioxide, also known as TiO2, is a white inorganic compound that has become an essential material in various industries due to its unique properties. It is widely used as a pigment, photocatalyst, and semiconductor material, among others. In this article, we will explore the different applications of titanium dioxide and its significance in modern technology.
- Titanium dioxide, commonly abbreviated as TiO2, is a widely used compound due to its exceptional properties such as high refractive index, photocatalytic activity, and excellent opacity. It finds applications in various industries, including paint, cosmetics, food, and solar cells. As a result, the market for Titan Tio2 suppliers is substantial and competitive.
Food safety experts in the European Union (EU) have recently updated their safety assessment of TiO2 as a food additive. In Europe, TiO2 is referred to as E171, in accordance with European labelling requirements for food additives. The EU expert panel took into account toxicity studies of TiO2 nanoparticles, which to this point had not been considered relevant to the safety assessment of TiO2 as a food additive.
The author thanks Marco Leona, Scientist-in-Charge of the Department of Scientific Research at the Metropolitan Museum of Art for conducting fluorescence spectrometry on Wheel of Fortune and a valuable discussion of the research, as well as Silvia Centeno, Research Scientist at the Metropolitan Museum of Art, who performed Raman analysis on the watercolors and also contributed her insight. The phenomenon of the phosphorescing lithopone was originally discovered during the author's fellowship in the Sherman Fairchild Center for the Conservation of Works on Paper, funded by the Andrew W. Mellon Foundation. The author thanks all her colleagues for their ideas and support during the research of this paper, and special thanks to Rachel Mustalish for her assistance in editing this work.

In its 2016 opinion, the ANS Panel recommended new studies be carried out to fill the gaps on possible effects on the reproductive system, which could enable them to set an Acceptable Daily Intake (ADI ). Uncertainty around the characterisation of the material used as the food additive (E 171) was also highlighted, in particular with respect to particle size and particle size distribution of titanium dioxide used as E 171.
The compound in the Asia Pacific market experienced a mixed trends throughout the fourth quarter of 2021. These market attitudes were mostly related to lower operational loads at Chinese domestic manufacturing plants.