|
items |
Technical index | ||
|
Photo Grade |
Medical Grade |
Industruial Grade | |
|
Appearance |
White crystal |
White crystal |
White crystal |
|
NaBr(main content) |
≥99.5% |
≥99.0% |
≥98.5% |
|
PH |
5.5-8.5 |
5.5-9.5 |
5.5-9.5 |
|
Loss on drying |
≤0.50% |
≤1.00% |
≤1.00% |
|
Chloride |
≤0.30% |
≤0.50% |
≤1.50% |
|
Sulphate |
≤0.01% |
≤0.02% |
≤0.1% |
|
Bromate |
Non-reaction |
Non-reaction |
Non-reaction |
|
As |
≤ 0.2ppm |
≤ 4ppm |
/ |
|
Pb |
≤ 0.2ppm |
≤ 10ppm |
/ |
|
Fe |
≤ 0.5ppm |
/ |
/ |
|
Packing |
PE/PP BAGS |
PE/PP BAGS |
PE/PP BAGS |
