... factory can produce Bismuth Trioxide in good quality.( Bi2O3 ,Bismuth ... powder, odorless, heating becomes brown red, becomes yellow after cooling,Solubility: Soluble in acid, insoluble in water Uses: mainly used in ... chemical reagents, bismuth salt manufacture, glass coloring, varistors, thermistors, lightning arrester, kinescope, fire paper, nuclear reactor fuel, electronic ceramic powder ...