Names | |
---|---|
IUPAC names | |
Other names
Bismuth oxide, bismuth sesquioxide
| |
Identifiers | |
3D model (JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.013.759 |
EC Number |
|
PubChem CID
|
|
UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
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)[1] |
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).
|
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.[1]