Item
Standard
Test result
Nitrogen %≥
20.5
20.9
Sulfur % ≥
23
23.5
Moisture % ≤
1.5
1
Free acidity (H2SO4) % ≤
0.2
0.03
Formulae
（NH4）2SO4
Molecular weight
132.14
CAS
7783-20-2
Properties
White/off white Granule, Easily soluble in water. Aqueous solution appears acid. Insoluble in alcohol, acetone and ammonia. Slight odor of ammonia.
Uses
Used to fertilizing on soil land directly. Or mixing with Pottasium or Phosphate granular fertilizer to be made into NPK blending fertilizers.
Storage
As with most solid fertilizers, Ammonium Sulphate can be stored over a season as long as it is kept in a cool, dry, well ventilated area.