Ammonium sulfate
1. Product Standard: GB 535-1995
2. Range of application: It is mainly used for industrial raw material and agricultural fertilizers.
3. Spec.:
| Item |
Details |
| Best quality |
First quality |
Qualifier |
| Appearance |
white crystal without visible impurities |
without visible impurities |
| Nitrogen content (dry basis) ≥ |
21.0 |
21.0 |
20.5 |
| Moisture(H2O) ≤ |
0.2 |
0.3 |
1.0 |
| Free acids (H2SO4) ≤ |
0.03 |
0.05 |
0.20 |
| Iron (Fe) content ≤ |
0.007 |
- |
- |
| Arsenic (As) content ≤ |
0.00005 |
- |
- |
| Heavy metal (Pb) content ≤ |
0.005 |
- |
- |
| Insol. in water ≤ |
0.01 |
- |
- |
4. Basic info.:
Molecular Formula: (NH4)2SO4
Molecular Weight: 132.141
Properties: It is colorless irritating liquid; soluble in water, ethanol, ether and glycerol etc.
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