... 5%Min 3.Moisture:1%Max 4.Appearence:white and light grey,color instablity Ammonium sulphate (Ammonium ... sulfate) detail description: ItemStandardItemStandardNitrogen Content20.5% minInspect Standard GB535-1995Moisture1 ... dying, chemical, leather, the raw material of ammonium persulfate,adjuvant, glufosinate ,herbicides,etc. Packing ...