Loading Port:Tianjin
Payment Terms:TT OR LC
Min Order Qty:-
Supply Capability:10000 m.t./month
Caprolactam grade Ammonium sulphate 21%(AS/SOA)
Technical specifications of Ammonium Sulphate( National Standard GB535-1995)
Item | Supreme grade | First grade | Qualified grade |
Appearance | White crystal,no visible mechanical impurity | no visible mechanical impurity | no visible mechanical impurity |
N content(dry basis),% ≥ | 21.0 | 21.0 | 20.5 |
Water content(H2O),% | 0.2 | 0.3 | 1.0 |
Free acid(H2SO4)content,% ≤ | 0.03 | 0.05 | 0.20 |
Fe content, % ≤ | 0.007 | - | - |
As content,% ≤ | 0.00005 | - | - |
Heavy metal(Pb)content,% ≤ | 0.005 | - | - |
Water insolubles,% ≤ | 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 insolubles. | |||
Application: Used for chemical fertilizers and for production of complex fertilizers,potassium sulphate,ammonium chloride and ammonium persulpate,ect. Also can be used for food processing,textile industry,medical industry and leather processing.
Storage and transportation: Stored in cool,dry and ventilated warehouse. It must not be put together with Alkali stuffs,such as lime,cement,etc.Do not expose it to sunlight and rain during transportation .Do not damage the packing bags.
