Ammonium Bromide Molecular Formula:NH4Br CAS No.:12124-97--9 Appearance:White Crystal / Powder 1) Photo Grade Main Content: 99.50%min Loss on Drying: 0.50%max Chloride: 0.20%max Sulfate: 0.005%max Fe: 0.00005%max Pb: 0.00002%max Cu: 0.00005%max Transparency: Qualified PH(5% ): 4.5-6.0 Packaging:PP / PE bag / fibre drum, 25kgs per bag/drum 2) Medical Grade Main Content: 99.00%min Loss on Drying: 1.00%max Chloride: 0.40%max Sulfate: 0.02%max Pb: 10.00ppmmax PH(5% ): 4.5-6.0 Packaging:PP / PE bag / fibre drum, 25kgs per bag/drum Uses: It is mainly used as sensitization film,photograph sensitive material, photographic paper and medicine, plastic,printing agents,etc.