Waste Ammonium sulfate
Product name: Ammonium sulfate
CAS NO: 7783-20-2
EC NO: 231-984-1
Molecular formula: (NH4)2·SO4
Structural formula: 
This product is a colorless translucent orthogonal crystal or translucent powder; soluble in water, insoluble in ethanol, acetone.
Executive standard: GB/T1396-1993
| Item | AR | Chemically pure CP | Special grade |
| Assay [(NH4) 2SO4]/% ≥ | 99.0 | 99.0 | 99.0 |
| pH value (50g/L solution, 25°C) | 4.8-6.0 | 4.8-6.0 | 4.8-6.0 |
| Clarity Test | Qualified | Qualified | Qualified |
| Water insoluble/% ≤ | 0.002 | 0.01 | 0.01 |
| Residue on ignition (as sulfate)/% ≤ | 0.01 | 0.05 | 0.01 |
| Chloride (Cl)/% ≤ | 0.0005 | 0.001 | |
| Nitrate (NO3)/% ≤ | 0.001 | 0.005 | |
| Phosphate (PO4)/% ≤ | 0.0005 | 0.002 | |
| Arsenic (As)/% ≤ | 0.00002 | 0.0002 | 0.0002 |
| Iron (Fe)/% ≤ | 0.0002 | 0.0005 | 0.0002 |
| Calcium (Ca)/% ≤ | 0.005 | ||
| Heavy metals (as Pb)/% ≤ | 0.0005 | 0.002 | 0.002 |
Uses: The product is widely used in medicine, food, biochemistry, biotechnology, glass surface treatment and other industries.
Packing: woven bag (lined with plastic bag); 50kg/bag.
