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[English Name] Ammonium Sulphate
Main active ingredients are 21% nitrogen and 24% sulfur, so it can be described as NPK 21-0-0 24S. Generally, it is a by-product from chemical (cyanuric acid, capro, acrylonitrile, sodium cyanide, monosodium glutamate - MSG, methyl methacrylate - MMA, etc.) or steel plant.
CAS No.: 7783-20-2
[Molecular Formular ](NH4)2SO4
[.Molecular Weight] 132.14
[Property] PH value of 0.1M solution is 5.5, Density is 1.769 g/cm3 (20 °C), hygroscopic, soluble in water insoluble in acetone, alcohol and ether.
[Appearance]
1)Steel Grade (also call Coke-ovens Grade) is fine white powder, after processing it can be white granular or flake.
2)Caprolactam Grade is colorless (achromatic) crystalline or yellowish crystals.
[Specifications] Based on Standard: GB535—1995
Item | Standard | Typical Result |
Appearance | Colorless or yellowish crystal | Pass |
Size | 2-4mm | Pass |
Nitrogen | 20.6% min | 20.62% |
Moisture | 1.0% max | 0.85% |
Free Acid | 0.03% max | 0.03% |
Iron (Fe) | 0.007% max | 0.002% |
Arsenic (As) | 0.00005% max | 0.00002% |
Heavy Metals | 0.005% max | 0.005% |
Water-Insoluble Matters | 0.01% max | 0.004% |
[Applications]In Agriculture
It is one of the most common use and most typical inorganic nitrogen fertilizer. It is the best fast release, quick acting fertilizer, can be directly used for a variety of soil and crops, can be used as kinds of seed fertilizers, base fertilizer and additional fertilizer. Particularly suitable for the soil which lack of sulfur, low chlorine tolerance crops, sulfur-philic crops, It is very popular in Japan, Southeast Asia, as well as northeast China where plant premium rice. Suitable for the rice seedling, the growth of tea, grass, vegetables, and fruit trees, effectually rapid promoting the growth of grain, vegetables, fruits, grass and other plants. It have more efficiency than urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate. Large granular ammonium sulphate can also serve as raw material for compound fertilizer. As feed additives, it provide the nutrients of non-protein nitrogen to ruminants. It also used for fish culture in some areas.
[Packing] N.W.20/25/50KG PP woven bag with PE linner bag. Shrink-wrapped with pallet is available.
[Storage & transportation] Stored in dry, cool airiness place, far away from heat, avoid insolation, sign with no moisture and no insolation
ammonium sulphate 20.6 granular steel grade