... Content:21%Min 3.Moisture:0.2%Max 4.Appearence:white crystal Ammonium sulphate (Ammonium sulfate) detail description:ItemStandardItemStandardNitrogen Content21 ... fertilizer,dying, chemical, leather, the raw material of ammonium persulfate,adjuvant, glufosinate ,herbicides,etc. PackingLoadingApplicationPlease feel free ... you have any question. caprolactam grade ammonium sulphate crystal moisture 0.2%