Ammonium Bromide 12124-97-9 NH4Br
Ammonium Bromide
Cas no.: 12124-97-9
Ammonium Bromide is used in the preparation of photographic emulsions and developers,in pharmaceutical preparations
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
|
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
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