Title: Bismuth Tetroxide
CAS Registry Number: 12048-50-9
Additional Names: "Bismuth peroxide"
Molecular Formula: Bi2O4
Molecular Weight: 481.96
Percent Composition: Bi 86.72%, O 13.28%
Literature References: It may contain 1 or 2 mols of H2O. Prepn: Gmelins, Bismuth (8th ed.) 19, 115 (1927); Schenk in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 629.
Properties: Orange-red to yellowish-brown heavy powder. Slowly dec by water without dissolving. Dec and dissolved by hot mineral acids.
Use: In lubricants for metal extrusion.