... 98.5 Moisture, %, ≤ 1.5 1.8 2.0 Insol. in water, %, ≤ 0.03 0.06 -- Chlorides (cl)Assay(dry ... basis), %, ≥ 0.15 0.24 -- Sodium nitrite (dry basis), %, ≤ 0.01 0.02 ... 0.15 Sodium carbonate (dry basis), %, ≤ 0.05 0.10 --Iron, %, ≤ --- ... used for dyes, medical and agricultural industry. Sodium nitrate made in china