What is "titanium oxide"

n. (context inorganic compound English) Either of two binary compounds of titanium and oxygen - titanium dioxide and titanium trioxide

n. a white powder used as a pigment for its high covering power and durability [syn: titanium dioxide, titanic oxide, titania]

Titanium oxide may refer to:

• Titanium dioxide (titanium(IV) oxide), TiO
• Titanium(II) oxide (titanium monoxide), TiO, a non-stoichiometric oxide
• Titanium(III) oxide (dititanium trioxide), TiO
• TiO
• TiO
• δ-TiO (x= 0.68 - 0.75)
• TiO where n ranges from 3–9 inclusive, e.g. TiO, TiO, etc.

Titanium(III) oxide ( Ti O) is a chemical compound of titanium and oxygen. It is prepared by reacting titanium dioxide with titanium metal at 1600 °C. TiO has the AlO, corundum structure. It is reactive with oxidising acids. At around 200 °C there is a transition from semiconducting to metallic conducting. Natural titanium(III) oxide is known as the extremely rare mineral tistarite.

Titanium(II) oxide ( Ti O) is an inorganic chemical compound of titanium and oxygen. It can be prepared from titanium dioxide and titanium metal at 1500 °C. It is non-stoichiometric in a range TiO to TiO and this is caused by vacancies of either Ti or O in the defect rock salt structure . In pure TiO 15% of both Ti and O sites are vacant. Careful annealing can cause ordering of the vacancies producing a monoclinic form which has 5 TiO units in the primitive cell that exhibits lower resistivity. A high temperature form with titanium atoms with trigonal prismatic coordination is also known. Acid solutions of TiO are stable for a short time then decompose to give hydrogen:

Evidence has been obtained for the presence of the diatomic molecule TiO in the interstellar medium. TiO shows strong bands in the optical spectra of cool ( M-type) stars.