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CAS No.: 7758-02-3 Molecular Weight: 119
HS CODE：2827.5100
Synonymous: BROMINE TS;BROMINE WATER;BROMINE WATER, SATURATED;BROMINE CONCENTRATE;BROMINE LIQUID;Bromidesalt of potassium;BROMIDE BROMATE;KOPPESCHARR'S SOLUTION
Molecular formula: KBr
Structural Formula:
K+Br-
Property:
This product is white crystal. It is free of smell and tastes salty and slightly bitter, with specific gravity 2.75(25℃)，melting point of 734℃，and boiling point of 1435℃，It can dissolve water and glycerine, hardly dissolves in alcohol and ether with slightly deliquescence and under sunlight it will become yellow easily.The product should be completely packed and stored in ventilated and dry storehouses, and guard against damp and keep in dark place, in case of fire it can be put out by water.
Technical Index:
| Items |
Photo First Grade |
Photo Second Grade |
Medical Grade |
| Main content |
99.5% min |
99.5% min |
98.0% min |
| Loss on drying |
0.3% max |
0.3% max |
0.5% max |
| Chloride |
0.2% max |
0.2% max |
0.5% max |
| Bromate |
0.001% max |
0.003% max |
0.005% max |
| Iodide |
0.001%max |
0.005% max |
0.005% max |
| Sulphate |
0.005%max |
0.005% max |
0.01% max |
| PH Value(5%) |
6.0—7.5 |
5.5—7.5 |
5.5—7.5 |
| As |
- |
- |
≤0.0004％ |
| Pb |
0.2ppm max |
4ppm max |
10ppm max |
| Fe |
0.5ppm max |
4ppm max |
5ppm max |
| Cu |
0.5ppm max |
1.0ppm max |
1ppm max |
| Bi |
0.2ppm max |
0.5ppm max |
- |
| Peroxide solution penetrability(250g/l) |
93～100
(410nm)
|
85～100(410nm) |
- |
| Transparency test |
Qualified |
Qualified |
- |
| Ammonia |
15.0ppm max |
- |
- |
| Peroxide solution chromaticity(250g/l) |
(15.0 Black once)max |
- |
- |
| Packing |
PP bag with PE inner bag/fibre drum,25kgs per bag/drum |
Usage:
This product is used as sensitive emulsion of cinema film and photographic film, or for formulating developer and used as sedative etc.
Package and Storage:
PP bag with PE inner bag/fibre drum,25kgs per bag/drum
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