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Chemical grade ammonium sulfate
Ammonium Sulphate
CAS NO.:7783-20-2
EINECS NO.:231-984-1
H.S.Code:31022100
Molecular formula:(NH4)2SO4
Features:
Industrial ammonium sulphate is white or light grey crystal. Relative density D=1.769,235℃ decomposition. It is hydroscopic, and apt to dissolve in water(not in alcohol or acetone),and it will become solid blocks when absorbing moisture. The aqueous solution is alkalinous. It reacts with alkali to release ammonia gas.
Application:
Used for chemical fertilizers and for production of complex fertilizers, Suitable for all kinds of soil and crops. Also can be used for food processing, textile industry, medical industry, leather processing, yeast fermentation etc.
Package:
Multi-layer bag (outer bag plastic woven bag, inner bag polyethylene film bag) or composite plastic woven bag (plastic woven cloth/film) packaging 25KG/50KG, or ton package, can be customized according to customer requirements
Storage and transportation:
It can be transported by vehicles such as cars, trains, ships, etc. During the transportation process, it should be protected from moisture and packaging bags. It should be stored in a flat, cool, ventilated and dry warehouse. It is strictly forbidden to contact with lime, cement and other alkaline substances or store it in the same warehouse. The stacking height of the package should be less than 7m.
Product Classification:
Chemical grade ammonium sulfate:By-products of chemical products.
Quality standard: nitrogen content-≥21%; moisture-≤0.5%; free acid-≤0.08%; sulfur content-≥23%
Quality standards: nitrogen content-≥20.5%; moisture-≤1%; free acid-≤0.03%;
Iron content-≤0.007%; Arsenic content-≤0.0005%;
Heavy metals-≤ 0.005%; Water insoluble-≤ 0.01%.
Technical specifications (implement of national standard GB535-1995)
Item |
Supreme grade |
First grade |
Qualified grade |
Appearance |
White crystal, no visible mechanical impurity |
White/off white no visible mechanical impurity |
no visible mechanical impurity |
N content(dry basis),% ≥ |
21 |
21 |
20.5 |
Water content(H2O),% ≤ |
0.2 |
0.3 |
1 |
Free acid(H2SO4)content,% ≤ |
0.03 |
0.05 |
0.2 |
Fe content, % ≤ |
0.007 |
/ |
/ |
As content,% ≤ |
0.00005 |
/ |
/ |
Heavy metal(Pb)content,% ≤ |
0.005 |
/ |
/ |
Water insoluble,% ≤ |
0.01 |
/ |
/ |
Note: When ammonium sulphate is used in agriculture, it is not necessary to check the content of Fe, As, heavy metal and water insoluble . Package in 25kg/bag, 50kg/bag, 1000kg/bag, 1200kg/bag, 1250kg/bag |
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