| Detailed Description: |
Cas No. :7758-02-3
Molecular formula: KBr
CAS No.: 7758-02-3
Items |
Photo First Grade |
Photo Second Grade |
Medical Grade |
| Main content |
99.5% min |
99.5% min |
99.0% 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 |
|
Xi:Irritant;
