Table 1.

Basic properties of titanium dioxide. Adapted from Ref. [13].

Properties	Values
CAS number	13463-67-7
Molecular formula	TiO2
Molar mass	79.866 g/mol
Appearance	White powder
Odor	Odorless
Density	3.9 to 4.2 g/mL
Melting point	1860 °C (decomposes)
Boiling point	2500–3000 °C
Solubility in water	Less than 1 mg/mL (20 °C)
Band gap	3.2 eV (anatase); 3.02 eV (rutile)
Refractive index (nD)	2.554 (anatase); 2.583 (brookite); 4.17 (rutile)