Factory Direct Best Selling sulphate ammonium
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Zhengzhou Mahaco Commercial Co., Ltd.
sulphate ammonium
Prosperity of sulphate ammonium
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.
Appearance of sulphate ammonium
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
Specifications of sulphate ammonium
Item | Standard | Typical Results |
Appearance | Colorless or Yellowish Crystal | Pass |
Size | 2-4mm | Pass |
Nitrogen | 20.5% min | 21.0% |
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% |