2. Molecular Formula : 132.14
5. Character:It is widely used in water softener and yeast food.
8. Storage and Transport: 9.Main Specification:
| INDEX | REQUIREMENT | RESULT | 
| Nitrogen Content (dry basis) % | 21%min | 21.20% | 
| 
 | 24% min | 24.10% | 
| S Content % | ||
| Free acid (H2SO4) Content% | 0.03%max | 0.01% | 
| Water (H2O)Content | 0.15% max | 0.10% | 
| Water Insoluble content % | 0.01%max | 0.01% | 
| TE % | 0.007% max | Pass test | 
| AS % | 0.00005% max | Pass test | 
| Heavy Metal (As Pb%) | 0.005% max | Pass test | 
| Conclusion: all items are in conformity with the agricultural grade. | ||