Antimony trioxide,Sb2O3,antimony trioxide white powder.Used as a fire retardant in the membranes of plastic ... of electric devices and household electric appliances, such as PVC,PP ,PE ,PS ,ABS,PU ,etc..2. Used as filling, covering ... .,LtdShenyang Five Star Mining Co.,LtdHuachang Mining Limited Antimony white powder(Sb2O3)