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Natural Sodium Nitrate Industrial Grade(Powder\Granular)
Application: Mainly applied in glass, porcelain and ceramics, explosives, dye, metallurgical, machinery, chemical and new energy materials for power generation of Solar Energy and the store-up heat liquids of other solar energy process as well as the meat preservatives and colorant in food industry.
Standard: GB/T 4553-2016
| Item | Unit | Top grade | First grade | Qualified products |
| Sodium nitrate (NANO3)'s mass fraction (dry basis) | % ≥ | 99.7 | 99.3 | 98.0 |
| Moisture 's mass fraction | % ≤ | 0.5 | 1.5 | 2.0 |
| Water-insoluble's mass fraction | % ≤ | 0.02 | 0.03 | - |
| Chloride (in NaCl)'s mass fraction (dry basis) | % ≤ | 0.03 | 0.30 | - |
| Sodium nitrite (NaNO2)'s mass fraction (dry basis) | % ≤ | 0.01 | 0.02 | 0.10 |
| Sodium carbonate (Na2CO3)'s mass fraction (dry basis) | % ≤ | 0.05 | 0.05 | 0.10 |
| Mass fraction of calcium nitrate (Ca(NO3)2) (dry basis) | % ≤ | 0.03 | - | - |
| Mass fraction of magnesium nitrate (Mg(NO3)2) (dry basis) | % ≤ | 0.03 | - | - |
| Iron (Fe)'s mass fraction | % ≤ | 0.002 | 0.005 | 0.005 |
| Boric acid (HBO) | % ≤ | 0.1 | 0.2 | - |
| Looseness | 90 | |||
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