Molecular Formula: (NH4)2SO4
Molecular Weight: 132.13
 
Property
Ammonium Sulphate is water-soluble efficient nitrogen fertilizer. Its nitrogen is more than 21.0% and contains the medium S element which the growing crops need. With its nitrogen in ammonic form and its high sulfur content, ammonium sulphate is one of the favorite fertilizers. It makes crops thrive and improves fruit quality, increases yield, and enhances resistance to disaster, can be used for common soil and plant such as paddy, wheat, corns, jowar, cotton, melon, vegetables and fruit trees.
 
Specification:
Appearance: Transparent crystal/granular
Nitrogen: 21% min
Sulphate: 24% min
Free acidity (H2SO4): 0.03% max
Chloride and chlorate (Cl): 0.01% max
Iron (Fe): 7 ppm max
Heavy metals (Pb): 5 ppm max
Moisture: 0.1% max
Water insoluble: 0.01% max
Size (2-5mm): 90% min (granular)
 
Application:
It can be used as basic fertilizer, additional fertilizer and seed manure. It is suitable especially for onions, garlic, hemp, potatoes and other crops which need high sulfur but avoid chlorine. For soil lack of sulfur, ammonium sulphate is favorite fertilizer.
For specific application rates follow the recommendation of a qualified individual or institution.
Note:
Long-term separate application causes soil acidification, deteriorate soil structure.
Apply small amount each time on sandy soil to reduce leaching, deep placement when apply in water field and calcareous soils, deeper when apply on dry land.
Mixing with lime, plant ash and other alkaline fertilizers causes ammonia volatilization.
 
Package and storage:
Package: plastic woven bag, PE liner, 25kgs, 50kgs or according to client request.
Storage: in sealed and well-ventilated place, avoid sunshine.