... :1%Max 4) Appearence:white or light grey,color instability 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.PackingShipmentApplicationPlease feel free to us ...