... As) 0.0002% maxInsoluble 0.01%maxUse: --Mainly used in fertilizer, tanning, pringting and dyeing,activator,papermaking,plastic,porcelain,pigment ... matchmaking ,dynamite and fireproof materials making . --Can used in pringting and dyeing delaine as the aggravating reagent of calico ... bags with plastic liners,25kg,40kg,50kg per bag. Stored in dry and cool place.Protection from sunshine,rain,moisture. if ...