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Cas No. :12124-97-9
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:
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Photo grade
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Medicine grade
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Appearance
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WHITE CRYSTAL
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WHITE CRYSTAL
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Assay% ≥
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99.5
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99
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Loss on Drying% ≤
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0.2
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0.5
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Transmit of 20% Solution 410 nm% ≥
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96
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--
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PH of 5% aqueous solution
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4.5-5.5
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4.5-5.5
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Chlorides(as Cl)% ≤
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0.1
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0.5
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Iodides(as I)% ≤
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0.006
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Pass test
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Sulfates(as SO4 )% ≤
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0.005
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0.01
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Resistance to KMnO4 Minutes ≥
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10
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--
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Heavy Metals(as Pb)PPM ≤
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3
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5
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Iron(as Fe2O3 )PPM ≤
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2
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--
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Non-Volatiles % ≤
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0.01
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--
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Alkal Earth Meatls(as Ca)% ≤
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0.005
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Pass test
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Water Insolubles % ≤
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0.005
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--
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Arsenic(as As)PPM ≤
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--
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3
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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.
6.Solution Specifications
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APPEARANCE
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Clear colorless
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Ammonium Bromide %
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36-38
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Density at 20 ℃ g/ml
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1.24-1.27
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PH( 25 ℃ )
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6.3-6.9
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Iron(as Fe 2 O 3 )PPM ≤
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2
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Clarity(as NTU) ≤
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1.5
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Chlorides(as Cl)% ≤
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0.2
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Sulfides(as S)PPM ≤
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2
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Iodides(as I)PPM ≤
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40
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7.Packaging:Ammonium Bromide is supplied in 1000L(1150kg)IBC or in 200L(235kg)plastic drum.
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Xi:Irritant;
