Ammonium Bromide molecular formula: NH4Br molecular weight: 97.94 CAS number: 12124-97-9 1.Uses: Ammonium Bromide is used in the preparation of photographic emulsions and developers,in pharmaceutical preparations,as a wood preservative,forwater treatment and as a flame retardant additive. 2. Specifications: Photo grade Medicine grade Appearance WHITE CRYSTAL WHITE CRYSTAL Assay%≥ 99.5 99 Loss on Drying%≤ 0.2 0.5 Transmit of 20% Solution 410 nm%≥ 96 -- PH of 5% aqueous solution 4.5-5.5 4.5-5.5 Chlorides(as Cl)%≤ 0.1 0.5 Iodides(as I)%≤ 0.006 Pass test Sulfates(as SO4)%≤ 0.005 0.01 Resistance to KMnO4 Minutes≥ 10 -- Heavy Metals(as Pb)PPM≤ 3 5 Iron(as Fe2O3)PPM≤ 2 -- Non-Volatiles %≤ 0.01 -- Alkal Earth Meatls(as Ca)%≤ 0.005 Pass test Water Insolubles %≤ 0.005 -- Arsenic(as As)PPM≤ -- 3 3. Shape and Properties:This Product is white cubic crystal, Specific gravity 2.429 and melting point 542℃ (decomposed). It is free of smell and tastes salty.It absorbs water and alcohol. 4. Storage and Handling: Store in adry,cool,well ventilated storehouse.Avoid inhalation,ingestion and contact with eyes and skin. 5. Packing: Ammonium Bromide in 25Kg net each net fiber drums with inner polyethylene bag or in knitting bag with inner polyethylene bag.