1. nitrogen:20%min 2.moisture:0.5%max appearance: yellow crystal Ammonium SulfateAmmonium Sulphate, crystal fertilizerAgricultural Products, Agricultural Fertilizer Used in textile, ... Main products:Granular Urea, Prilled Urea, TSP, DAP, MAP, Ammonium sulfate, Ammonium chloride NPK, FMP, etc. About US:Experience : Specializing in ... cooperate with you in the near future. Thank you ammonium sulphate 21