B 1096 (OTTO) Bismuth oxide, 99.9995% Cas 1304-76-3 - used as Adhesives and sealant chemicals, flame retardants, pigments, propellants and blowing agents. B 1096 (OTTO) Bismuth oxide, 99.9995% Cas 1304-76-3 - used as solvents. Other uses are in batteries, electrical and electronic products, explosive materials ink, toner, and colorant products, paints and coatings.