|Molar mass||63.866 g/mol|
|Melting point||1,750 °C (3,180 °F; 2,020 K)|
|EU Index||Not listed|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is: / ?)(|
Titanium(II) oxide (TiO) 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 TiO0.7 to TiO1.3 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 higher 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:
- Ti2+ + H+ → Ti3+ + ½ H2
- Holleman, A. F.; Wiberg, E. (2001), Inorganic Chemistry, San Diego: Academic Press, ISBN 0-12-352651-5
- Electrical and Magnetic Properties of TiO and VO, Banus M. D., Reed T. B., Strauss A. J., Phys. Rev. B 5, 2775 - 2784, (1972)doi:10.1103/PhysRevB.5.2775
- Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0080379419.
- Dyck, H. M.; Nordgren, Tyler E. "The effect of TiO absorption on optical and infrared angular diameters of cool stars" Astronomical Journal (2002), 124(1), 541-545. doi:10.1086/341039
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