Description Sodium Chloride, Crystals, ACS, 99+%, 5kg For Research & Development Not for drug, human, animal, or food use Specifications: Assay 99+%Insoluble <0.005%pH of 5% solution 5.0-9.0 @ 25 C Iodide <0.002%Bromide <0.01%Chlorate and nitrate (as NO3) <0.003%Phosphate <0.0005%Sulfate <0.004%Barium Pass TestHeavy Metals (as Pb) <0.0005%Iron <0.0002%Calcium <0.002%Magnesium <0.001%Potassium <0.005% CAS: 7647-14-5 FORMULA: NaCl