Sodium nitrate 99%min 1)MF: NaNO3 2)Purity: 99.7% 3)Grade: Industrial Grade Sodium Nitrate:White or slight yellow crystal. Specific Density: 2.168 ... 99.4% min Insoluble in water 0.04% max Chloride content (as NaCl) 0.22% max Moisture 1.2%Sodium Nitrite 0.02%Sodium ... , medicine, gunpowder, explosive, glass, pigment, match and preserving food etc. Sodium Nitrate NaNO3 99%min