Titanium(II) oxide
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| Titanium(II) oxide | |
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| Titanium(II) oxide | |
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Other names
Titanium monoxide
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| Identifiers | |
| CAS number | 12137-20-1  |
| PubChem | 61685 |
| Properties | |
| Molecular formula | TiO |
| Molar mass | 63.866 g/mol |
| Appearance | bronze crystals |
| Density | 4.95 g/cm3 |
| Melting point |
1750 °C |
| Structure | |
| Crystal structure | cubic |
| Hazards | |
| EU Index | Not listed |
| Flash point | Non-flammable |
| Related compounds | |
| Related titanium oxides | Titanium(III) oxide Titanium(III,IV) oxide Titanium(IV) oxide |
 (what is this?) (verify)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references |
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.[1] 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 (chalk).[1] In pure TiO 15% of both Ti and O sites are vacant.[1] 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[2] There is also a high temperature form with titanium atoms with trigonal prismatic coordination.[3] Acid solutions of TiO are stable for a short time then decompose to give hydrogen:[1]
- Ti2+ + H+ → Ti3+ + ½ H2
[edit] References
- ^ a b c d 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.). Oxford: Butterworth-Heinemann. ISBN 0080379419.
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