1.ammonium sulphate fertilizer 2.(NH4)2SO4 3.100% water soluble, no impurity 4.Large stock&fast delivery Application:It is used in metallurgy, medicine, leather, wood preservative, textile, plating, ferment, fertilizer. Standard (GB535-1995) IndexPremium GradeAppearancewhite crystal without any impurity visible to the naked eyeNitrogen(N) content(based on dry basis) %≥20.5Moisture %≤0.5Free Aicd ...