Sodium nitrate 1)MF: NaNO3 2)Purity: 99% min 3)Grade: Industrial Grade Appearance:White or slight yellow ... 99% min Insoluble in water 0.06% max Chloride content (as NaCl) 0.3% max Moisture 1.5%Sodium Nitrite 0.02%Sodium ... , medicine, gunpowder, explosive, glass, pigment, match and preserving food etc. 99%High quality Sodium Nitrate