Bismuth Oxide By Nova Oleocham Ltd.

Bismuth oxide commonly used to produce the "Dragon's eggs" effect in fireworks, as a replacement of red lead, bismuth oxide is usually obtained as a byproduct of the smelting of copper and lead ores. Bismuth oxide may also be prepared by burning bismuth metal in air. However, bismuth oxide is naturally found as the mineral bismite (monoclinic) and sphaerobismoite (tetragonal, much more rare).

Some of the salient features are as follows:

* CAS number [1304-76-3]
* Molecular formula Bi2O3
* Molar mass 465.96 g/mol
* Bi=89.70%, O=10.30%
* Appearance yellow crystals or powder
* Density 8.9 g/cm3, solid
* Melting point 824 C
* Boiling point 1890 C
* Solubility in other solvents Insoluble