Bismuth(III) oxide
| Names | |
|---|---|
| IUPAC names | |
| Other names
Bismuth oxide, bismuth sesquioxide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.013.759 |
| EC Number |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| Bi2O3 | |
| Molar mass | 465.958 g·mol−1 |
| Appearance | yellow crystals or powder |
| Odor | odorless |
| Density | 8.90 g/cm3, solid |
| Melting point | 817 °C (1,503 °F; 1,090 K) |
| Boiling point | 1,890 °C (3,430 °F; 2,160 K) |
| insoluble | |
| Solubility | soluble in acids |
| −83.0·10−6 cm3/mol | |
| Structure | |
| monoclinic, mP20, Space group P21/c (No 14) | |
| pseudo-octahedral | |
| Hazards | |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable |
| Safety data sheet (SDS) | ThermoFisher SDS |
| Related compounds | |
Other anions |
Bismuth trisulfide Bismuth selenide Bismuth telluride |
Other cations |
Dinitrogen trioxide Phosphorus trioxide Arsenic trioxide Antimony trioxide |
| Supplementary data page | |
| Bismuth(III) oxide (data page) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Bismuth(III) oxide is a compound of bismuth, and a common starting point for bismuth chemistry. It is found naturally as the mineral bismite (monoclinic) and sphaerobismoite (tetragonal, much more rare), but it is usually obtained as a by-product of the smelting of copper and lead ores. Dibismuth trioxide is commonly used to produce the "Dragon's eggs" effect in fireworks, as a replacement of red lead.