| Standard | Reagent special grade |
|---|---|
| Standard name | AMMONIUM SULFATE |
| Capacity | NET 25kg |
| Appearance | White crystal or crystalline powder |
| Packaging type | Paper bag (outer bag: Craft, inner bag: polyethylene) |
| Item | Standard value | Comment |
|---|---|---|
| Assay | ≧99.5% | Max100.5% |
| Water solubility | Clear | |
| Residue after Ignition（as sulfate） | ≦0.01% | |
| pH(50g/l,25℃) | 4.8～6.0 | |
| Chloride (Cl) | ≦5ppm | |
| Nitrate | pass test | |
| Phosphate(PO4) | ≦3ppm | |
| Sodium (Na) | ≦0.005% | |
| Potassium (K) | ≦0.005% | |
| Copper (Cu) | ≦2ppm | |
| Magnesium(Mg) | ≦5ppm | |
| Calcium (Ca) | ≦0.001% | |
| Lead(Pb) | ≦2ppm | |
| Arsenic (As) | ≦0.2ppm | |
| Iron (Fe) | ≦5ppm |
Application example
Reagent、Pharmaceutical raw materials、Microbial culture base、Fermentation auxilirary
Handling precautions
Avoid direct sunlight and high temperatures
