Titanium(III) oxide
| Names | |
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| IUPAC name
titanium(III) oxide
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| Other names
titanium sesquioxide
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| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ECHA InfoCard | 100.014.271 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Ti2O3 | |
| Molar mass | 143.76 g/mol |
| Appearance | violet black powder |
| Odor | odorless |
| Density | 4.49 g/cm3 |
| Melting point | 2,130 °C (3,870 °F; 2,400 K) (decomposes) |
| insoluble | |
| +125.6·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Titanium(III) oxide (Ti2O3) is a chemical compound of titanium and oxygen. It is prepared by reacting titanium dioxide with titanium metal at 1600 °C.[1] Ti2O3 has the Al2O3, corundum structure.[1] It is reactive with oxidising acids.[1] At around 200 °C there is a transition from semiconducting to metallic conducting.[1] Natural titanium(III) oxide is known as the extremely rare mineral tistarite.[2]
References
- ^ a b c d Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ^ Mindat, http://www.mindat.org/min-38695.html
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