... :1%Max 4) Appearence:white or light grey,color instability Ammonium sulphate (Ammonium sulfate) detail description: ItemStandardItemStandardNitrogen Content20.5% minInspect Standard GB535-1995Moisture1 ... material of ammonium persulfate,adjuvant, glufosinate ,herbicides,etc.PackingShipmentApplicationPlease feel free to us if you have any question. Agriculture Fertlisers White Ammonium Sulphate