Zirconium dioxide

Zirconium dioxide, also known as zirconia or zirconium oxide (CAS 1314-23-4, EC 215-227-2), is an inorganic metal oxide derived from the element zirconium. It carries no assigned E-code and is commercially referenced under the formula O2Zr across technical and regulatory documentation.

In personal care formulations, zirconia functions as a skin protectant and antimicrobial agent by forming a physical barrier and inhibiting microbial activity at the surface level. In coatings and sealants, it acts as a surface modifier, improving adhesion and substrate wetting through its high refractive index and chemical stability at the interface.

Zirconium dioxide is available in high-purity powder grades suitable for cosmetic, coating, and industrial applications, with compliance documentation aligned to REACH regulation. Suppliers typically offer material in multi-kilogram bags or bulk quantities, with technical datasheets confirming purity levels and particle size distribution upon request.