Antimony trioxide,Sb2O3,antimony trioxide white powder.Used as a fire retardant in ... of plastic industry, the enclosures of electric devices and household electric appliances, such as PVC,PP ,PE ... , enamels, fabrics, and fiber products.3. Used as pigments and retardant in oil paint and coating material industry.4 ... . Used as retardants in synthetic resin and papers.5.Used as catalytic agent in organic ...