N 21% White  Capro Grade Granular Ammonium Sulphate

Appearancewhite Powder
Nitrogen20.5% min
Moisture1% max
  • Description

N 21% White  Capro Grade Granular Ammonium Sulphate

Ammonium Sulphate is a kind of nitrogen fertilizer which can provide N for NPK and mostly used for agriculture. Besides providing the element of nitrogen, it can also provide the element of sulphur for crops, pastures and other plants. Because of its fast release and quick acting, ammonium sulfate is much better than other nitrogen furtillizers such as urea, ammonium bicarbonate, ammonium chloride and ammonium nitrate.

The top quality ammonium sulfate can also be used in industries, such as food industry, dyeing industry, medical industry and so on.


White or Light-colored crystals with a relative density or D 20=1.769, Can be decomposed at 235℃, Soluble in water (Acidic aqueous solution), insoluble in Ethanol or Acetone), will become pieces after moisture absorption and release ammonia when action with Alkali.


Mainly used for making compound fertilizer, potassium sulfate, ammonium chloride, ammonium persulfate, etc, can also be used for rare earths mining.


(1) Caprolactam grade: Byproduct of caprolactam
Mainly used in fertilizer for various soils and crops, also can be used in textile, leather, medicine and as nitrogen sources for yeast fermenting,

(2) Ammonium pyrosulfate:
Byproduct or coking.
Quality standard:
Water- ≤1%.

Property:    White or off-white granule, easily soluble in water. Aqueous solution appears acid. Insoluble in alcohol, acetone and ammonia, Easily deliquescent in the air.



AppearanceNo visible mechanical impurity
N content (dry basis)21.0% min
Moisture0.2% max
Free acid H2SO40.03% max
Fe0.007% max
Insoluble matter in water0.01% max




Mainly used in fertilizer the advantage is it less absorb mosisture compare to ohter fertilizer. It also can be used in industry, such

as used in pharmaceuticals, textiles.

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