Titanium(II) oxide Information & Titanium(II) oxide Links at HealthHaven.com

Titanium(II) oxide
	File:Titanium(II) oxide.jpg
Other names	Titanium monoxide
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
	Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
	Infobox references

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.^[1] It is non-stoichiometric in a range TiO_0.7 to TiO_1.3 and this is caused by vacancies of either Ti or O in the defect rock salt structure.^[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, A. (1997), Chemistry of the Elements (2nd ed.), Oxford: Butterworth-Heinemann, ISBN 0-7506-3365-4

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[Wiberg.26Holleman-0] Holleman, A. F.; Wiberg, E. (2001), Inorganic Chemistry, San Diego: Academic Press, ISBN 0-12-352651-5

[1] 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

[2] Greenwood, Norman N.; Earnshaw, A. (1997), Chemistry of the Elements (2nd ed.), Oxford: Butterworth-Heinemann, ISBN 0-7506-3365-4

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