Basic information: 1.Purity : bismuth / bismuth trioxide / bismuth oxide powder bi2o3 5n 99.999% 2. Cas no.: 1304-76-3 3.Main application:apicoectomy, apexification, pulp capping, pulpotomies, ect. 4. Bismuth oxide, another name is bismuth trioxide. Characteristics: Yellow power, insoluble in water, but soluble in concentrated acid to get bismuth(iii)salt. Can be reduced by carbon and hydrogen. Decomposed from heated bismuth nitrate. Applied to make metal bismuth, catalyst and bismuth series oxides superconductor.