Chemical name: Ammonium sulfate
Specification:GB535-83
Molecular formula:(NH4)2SO4
Relative molecular weight:132.13
Property: white or off-white granule,soluble in water,solution is acidic,Insoluble in alcohol, acetone and ammonia. Release of ammonia when mixed with alkali and easy deliquescence.
Use:Chemical industry as hydrogen peroxide, ammonium alum and ammonium chloride production as raw materials, welding industry as a welding flux, the textile industry as a fire retardant fabric. Plating bath additives for the electroplating industry.
Packing:lined with plastic bag and exterior is woven bag,net weight of each bag:25kg,50kg,1000kg.
Quality standard:
| Item |
Industrial grade |
| Nitrogen (N) content (dry basis) % ≥ |
21.0 |
| Moisture(H2O) % ≥ |
0.5 |
| Free acid(H2SO4) % ≥ |
0.08 |
| Iron(Fe) % ≥ |
0.007 |
| Arsenic(As) % ≥ |
0.00005 |
| Heavy metal(Pb) % ≥ |
0.005 |
| Water insoluble % ≥ |
0.05 |
| Item |
Agricultural products |
| Agricultural dry grade |
agricultural wet grade |
| Nitrogen (N) content (dry basis) % ≥ |
21.0 |
20.8 |
| Water content(H2O) % ≤ |
0.5 |
1.0 |
| Free acid(H2SO4) % ≤ |
0.08 |
0.20 |
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