Chemical: SOA
Molecular Weight:
Formulation:20.5%-21%
Cas No.:7783-20-2
Ammonium sulphate 20.5%-21%
is one of the most widely used nitrogen fertilizers. Ammonium sulphate provides an equal balance of nitrogen and sulphur and can make crops thrive and improve fruit quality and yield and also strengthen resistance to disaster . Ammonium sulphate is the best fast releasing, quick acting and can be used directly for a wide range of soil and crops, and also as seed fertilizers, base fertilizer and additional fertilizer.
Specifications:
Nitrogen:21%min Moisture:0.2max
|
Item |
Supreme grade |
First grade |
Qualified grade |
|
Appearance |
no visible mechanical impurity |
no visible mechanical impurity |
no visible mechanical impurity |
|
N content(dry basis),% ≥ |
21.0 |
21.0 |
20.5 |
|
Water content(H2O),% ≤ |
0.5 |
0.7 |
1.0 |
|
Free acid(H2SO4)content,% ≤ |
0.03 |
0.05 |
0.20 |
|
Fe content, % ≤ |
0.007 |
- |
- |
|
As content,% ≤ |
0.00005 |
- |
- |
|
Heavy metal(Pb)content,% ≤ |
0.005 |
- |
- |
|
Water insolubles,% ≤ |
0.01 |
- |
-
|
