Product description: Physical and chemical property appearance: white crystal powder relative density: 2.67 melting point: 980 toxicity: 1g/Kg index of refraction: 1.58 grain diameter: figure thermal analysis: figure Use At present countries over the world get interest in 3.5 Water Zinc Borate, and is widely used to manufacture plasticPVCPEPPEVAABSepoxide resinunsaturation resinphenolic resinurethane foam. It is also used in rubber Industry such as neoprenepolybutadienerubberBuna-N rubber and papertextile. In special plastic industry, it can replace diantimony trioxide and effectively prevent from smoke. It also can take the place of zinc chromate as primerceramics glazepesticide. Package Net weight: 25Kg, paper-plastic composite bag with PE film interlined, protect from damp and hook. Chemical component Items Index ZnO% 3740 B2O3 % 4649 Surface water% 0.5 ignition loss% 13.515.5 Pb 5ppm Cd ND Cr ND