Executive Standard:GB535-1995
Chemical Formula:(NH4)2SO2
CAS NO.: 7783-20-2
| NO. | Items | Standard | Internal Standards |
| 1 | Appearance | White Crystal | White Crystal |
| 2 | Nitrogen (N) % ≥ | 21.0 | 21.5 |
| 3 | Sulfur (S) % ≥ | 24.0 | 24.1 |
| 4 | Moisture % ≥ | 0.1 | 0.07 |
| 5 | Arsenic (As) % ≤ | 0.0005 | 0.0001 |
| 6 | Iron (Fe) % ≤ | 0.007 | 0.002 |
| 7 | Free Acid % ≤ | 0.05 | 0.01 |
Application Field :
1.Can double decomposition reaction with salt to produce ammonium chloride, with aluminum sulfate to produce ammonium alum, and boric acid together to produce refractory materials.The conductivity can be increased by adding electroplating solution.Beer brewing, chemical reagents and battery production.Raw materials for mining rare earths.
2.The catalyst of food pickles, the nitrogen source of yeast culture in the production of fresh yeast, acid dye assistant, leather deashing agent.
3.Used a good nitrogen fertilizer (commonly known as fat field powder), base fertilizer, topdressing fertilizer and seed fertilizer.
