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