... .5Chloride (Cl) ≤ 0.005 0.005 0.005 0.005Iron (Fe) ≤ 0.0005 0.0005 0.0005 0.0005Sulfate(SO4) ≤ 0 ... bag, or 280kg drum. ApplicationFor manufacturing Potassium Carbonate, potassium phosphate, synthetic detergent, SBR and ABS resin, potassium compound, herbicide, photo chemicals, pesticide, battery, concrete ...