1. nitrogen:20%min 2.moisture:0.5%max appearance: yellow crystal Ammonium SulfateAmmonium Sulphate, crystal fertilizerAgricultural Products, Agricultural Fertilizer Used in textile, leather, ... .0% min21.8%Moisture0.5 %max0.42% Main products:Granular Urea, Prilled Urea, TSP, DAP, MAP, Ammonium sulfate, Ammonium chloride NPK, ... cooperate with you in the near future. Thank you ammonium sulphate 21