... or FlakesProperties:There are two types, anhydrous alumnium sulphate and aluminium sulphate octadecahydrate ,in normal condition, it is AL2(SO4) ... container,we can mix different items in one container.2.Quality control,before shipment,free sample for test after shipment, ... as your request,with photo before shipmentany question, welcome here! (Good price) Aluminium Sulphate for use in water treatment