Glossary
Titanium Dioxide. Properties and Applications

Rutile; rutile

Mineral form of TiO₂ that remains stable from room temperature up to melting temperature (1,855°C). Its specific gravity is 4.250.

Anatase; anatase

Mineral form of TiO₂ that irreversibly transforms into rutile in the 600-800° C temperature range. Its specific gravity is 3.994.

TiO_2–x 

Oxygen-substoichiometric mineral forms of TiO₂. They are generally obtained at high temperature and in a reducing atmosphere. TiO_2–x is an n-type semiconductor.

Photocatalysis; photocatalysis

Chemical transformation induced by contact with a catalyst activated by visible or UV radiation.

Pigment; pigment

Submicron-sized granular phase (0.1-1 µm) dispersed in a transparent medium (glass, paint, polymer, etc.). The pigment opacifies the transparent...