Titanium(III) oxide
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IUPAC name
titanium(III) oxide
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| Other names
titanium sesquioxide
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| Identifiers | |
1344-54-3 
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| 3D model (Jmol) | Interactive image |
| ChEBI | CHEBI:134436 |
| ECHA InfoCard | 100.014.271 |
| PubChem | 123111 |
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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 | |
| Hazards | |
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EU classification (DSD)
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not listed |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
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. Ti2O3 has the Al2O3, 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.
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