Titanium oxide may refer to: Titanium dioxide (titanium(IV) oxide), TiO2 Titanium(II) oxide (titanium monoxide), TiO, a non-stoichiometric oxide Titanium(III) oxide (dititanium trioxide), Ti2O3 Ti3O Ti2O δ-TiOx (x= 0.68–0.75) TinO2n−1 where n ranges from 3–9 inclusive, e.g. Ti3O5, Ti4O7, etc. Uses Often used as an active ingredient in sunscreens combined with oxybenzone and octyl methoxycinnamate. Used to give the white colour of titanium white paint. References Dielectrics Electronic engineering High-κ dielectrics