Ammonium sulphate industrial 21%

CAS No: 7783-20-2 EINECS No.: 231-984-1 Molecular formula: (NH4)2SO4 Purity: 99% min Nitrogen content: 21% min Appearance: White crystal /granular 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. Package: Neutral packing as your request,English words or any other language. Packed in PP woven bags with PE film liner. Net weight of each bag: 50kgs or 25kgs. 18 to 25 tons per 20FCL.(with or without pallet ) 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. Technical specifications of Ammonium Sulphate( National Standard GB535-1995) ItemSupreme gradeFirst gradeQualified gradeAppearance White crystal,no visible mechanical impurityno visible mechanical impurityno visible mechanical impurityN content(dry basis),% ≥21.021.020.5Water content(H2O),% ≤0.20.31.0Free acid(H2SO4)content,% ≤0.030.050.20Fe 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.