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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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