Yellow Bismuth trioxide powder 1.Purity: Bi2O3 99.9% up 2.Average Particle: Size 1-3um 3.Packing:Plastic bag 25kg in iron drum 1.Our factory can produce Bismuth Trioxide in good quality.( Bi2O3 ,99.9% 99.99%99.999%) 2.Properties: light yellow powder, odorless, heating becomes brown red, becomes yellow after cooling 3.Solubility:...