... 99.50,Sb2O3 99.0. It is mainly used as a flame-retardants syneraist in the flame-retardant agents of plastic , ... rosin ,rubber ,paint ,textile ,in order to intensify flame-retardant effects .It is also widely use in the industies such as glass ,enamel ... ,paint ,catalyst ,metallurgy ,chemical,etcPackge: The standard package is a 25kgs paper ...