Sodium Bromide Molecular Formula:NaBr CAS No.:7647-15--6 Appearance:White Crystal / Powder 1)Photo Grade Main Content: 99.50%min Loss on Drying: 0.50%max Bromate: 30ppmmax Chloride: 0.30%max Sulfate: 100ppmmax Fe: 0.50ppmmax Pb : 0.20ppmmax Cu: 0.50ppmmax Mercury: 3ppmmax Iodine: 50ppmmax Arsenic: 0.20ppmmax PH(5% ): 5.5-8.5 Packaging: PP/ PE bag / fibre drum, 25kgs per bag/drum 2) Medical Grade Main Content: 99.00%min Loss on Drying: 1.00%max Bromate: Non-reaction Chloride: 0.60%max Sulfate: 200ppmmax Arsenic: 4ppmmax PH(5% ): 5.5-9.5 Packaging: PP/ PE bag / fibre drum, 25kgs per bag/drum 3) Indrustrial Grade Main Content: 98.50%min Loss on Drying: 1.00%max Bromate: Non-reaction Chloride: 1.50%max Sulfate: 500ppmmax Packaging: PP/ PE bag / fibre drum, 25kgs per bag/drum Uses:It is mainly used as sensitization film, medicine, plastic, printing, foaming, water conservation,etc.