... :1%Max 4.Appearence:white and light grey,color instablity Ammonium sulphate (Ammonium sulfate) detail description: ItemStandardItemStandardNitrogen Content20.5% minInspect Standard GB535 ... ;used in fertilizer,dying, chemical, leather, the raw material of ammonium persulfate,adjuvant, glufosinate ,herbicides,etc. Packing ShippingApplication Please feel free ...