Potassium bromide
Belongs to Category：
Product Description
Molecular Formula: KBr
CAS: 7758-02-3
Uses: Used in the emulsion of movie film and photographic film or in the preparation of developers; used as a sedative in medicine.
Packaging: 25kg woven bag with plastic liner or 25kg cardboard drum.
|
Item |
Photographic Grade 1 |
Photographic Grade 2 |
Superior Grade |
|
Main Content (Dry Basis) |
≥99.5% |
≥99.5% |
≥99.0% |
|
Water |
≤0.3% |
≤0.3% |
≤0.5% |
|
Chloride |
≤0.2% |
≤0.2% |
≤0.5% |
|
Bromate |
≤0.001% |
≤0.003% |
≤0.005% |
|
Iodide |
≤0.001% |
≤0.005% |
≤0.005% |
|
Sulfate |
≤0.005% |
≤0.005% |
≤0.01% |
|
PH value (5%) |
6.0—7.5 |
5.5—7.5 |
5.5—7.5 |
|
Arsenic |
— |
— |
≤0.0004% |
|
Lead |
≤0.2ppm |
≤4ppm |
≤10ppm |
|
Iron |
≤0.5ppm |
≤4ppm |
≤5ppm |
|
Copper |
≤0.5ppm |
≤1.0ppm |
≤1ppm |
|
Bismuth |
≤0.2ppm |
≤0.5ppm |
— |
|
Transmittance of aqueous solution (250g/l) |
93～100（410nm） |
85～100（410nm） |
— |
|
Clarity Test |
Qualified |
Qualified |
— |
|
Ammonia |
≤15.0ppm |
— |
— |
|
Color of aqueous solution (250g/l) |
≤15.0 black |
— |
— |
|
Packaging |
25kg/bag, drum; Cardboard drum or woven bag with plastic liner |
||
Keyword：
Related Products
Welcome your message consultation