Organic ammonium sulphate steel grade caprolactam grade

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

Organic ammonium sulphate steel grade caprolactam grade

Ammonium Sulphate Specification
ItemsSpecificationSteel GradeCapro GradeGranular 2-5mm
N20% min20.56%21.24%21%
Moisture1% max0.45%0.28%0.43%
PH (sol.10%)3.50 – 5.003.954.833.95
Fe100ppm max30ppm21ppm30ppm
As10ppm max<1ppm1ppm<1ppm
Cd20ppm max1ppm2ppm1ppm
Pb100ppm max12ppm16ppm12ppm
Cr200ppm max2ppm1ppm2ppm
Hg200ppm max<1ppm0,05ppm<1ppm
Ca300ppm max68ppm30ppm68ppm
Hardeness30N/Prill min30

Description of Ammonium Sulphate

Ammonium sulphate contains ammoniacal nitrogen and water-soluble sulphur. The nitrogen is entirely in the form of ammonium, which reduces the risk of leaching during wet periods. This fertilizer is mainly used in arable farming and on grassland on crops that need a lot of sulphur (e.g. rapeseed and potatoes). In Southern Europe and outside Europe, ammonium sulphate is often used as a fertilizer for citrus fruits, coffee, rice, tea, bananas, pineapples, sugar beet and soya beans. The product can be used as a single fertilizer or in blends.


We supply two different ranges of ammonium sulphate: crystalline and granular. The difference is in the size of the granule. The crystalline range is the smallest type of granule, the products being AS-Crystal and AS-Standard.

The primary use of ammonium sulfate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs.


It is also used as an agricultural spray adjuvant for water soluble insecticides, herbicides, and fungicides. There, it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2,4-D (amine), glyphosate, and glufosinate herbicides.

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