Item | Low Moisture | Top grade | First grade |
Sodium nitrite (NaNO2) content %(as dry basis)≥ | 99.0 | 99.0 | 98.5 |
Sodium nitrate(NaNO3) content %(as dry basis)≤ | 0.8 | 0.8 | 1.0 |
Chloride (NaCl) content (as dry basis),%≤ | 0.10 | 0.10 | 0.17 |
Water insoluble substance %(base on dry basis) ≤ | 0.05 | 0.05 | 0.06 |
Moisture content%≤ | 0.2 | 1.4 | 1.8 |