Bismuth oxide CAS NO.12640-40-3

Bismuth(III) oxide is the most industrially important compound of bismuth. It is also a common starting point for bismuth chemistry. It is found natur…

Bismuth(III) oxide is the most industrially important compound of bismuth. It is also 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. It may also be prepared by burning bismuth metal in air. Bismuth trioxide is commonly used to produce the "Dragon's eggs" effect in fireworks, as a replacement of red lead.