CAS No: 7783-20-2
Molecular Formula: (NH4)2SO4
HS Code：31022100
Character: white or off-white crystal
Usage: it can be directly used as chemical fertilizer, also can be used to make compound fertilizer, potassium sulfate, ammonium chloride, ammonium persulfate, etc. It is also used in food, textile, leather and medicine industries
Package: 25kgs woven PP or PE bags,50kgs/1000kgs/1200kgs woven PP bags
Storage and transportation: store in a cool, dry and ventilated warehouse. Do not contact with lime, cement or other alkaline materials or put them in storage. Sun and rain are strictly prohibited during transportation to prevent packaging bags from being damaged.
Grade | Special grade | First grade | Qualified grade | Results |
Appearance | white crystalline powder,without visible mechanical impurities. | without visible mechanical impurities. | without visible mechanical impurities. | |
N content(dry base) % ≥ | 21.0 | 21.0 | 20.5 | 21.08 |
Water (H2O) % ≤ | 0.3 | 0.5 | 1.0 | 0.25 |
Free acid(H2SO4)content % ≤ | 0.03 | 0.05 | 0.2 | 0.03 |
Fe content % ≤ | 0.007 |
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As content % ≤ | 0.00005 |
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Heavy metal(Pb) content % ≤ | 0.005 |
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Water insolubles content % ≤ | 0.01 |
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Basic of inspection | GB535-1995 | |||
