... )MF: NaNO3 2)Purity: 99% min 3)Grade: Industrial Grade Sodium Nitrate:White or slight yellow crystal. Specific Density: 2.168(20 ... .WITH THE REFERENCE OF HG/T23272004 CHINESE NATIONAL STANDARDS, PURITY 99% min Insoluble in water 0.06% max Chloride content (as ... , gunpowder, explosive, glass, pigment, match and preserving food etc. sodium nitrate 99%