... lossing all of its crystal water becomes anhydrous compounds.Use: --Mainly used in fertilizer, tanning, pringting and dyeing,activator,papermaking, ... matchmaking ,dynamite and fireproof materials making . --Can used in pringting and dyeing delaine as the aggravating reagent of calico ... plastic liners,25kg,40kg,50kg,1000kg per bag. Stored in dry and cool place.Protection from sunshine,rain,moisture. ...