Sodium Metabisulfite Powder, Purified *

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About Sodium Metabisulfite Powder, Purified

Sodium Metabisulfite, also known as Sodium Disulfite, Sodium Pyrosulfite, Sodium Metabisulphite or Sodium Pyrosulphite, Disodium Disulfite, and Natrium Pyrosulfit, has the chemical formula Na2S2O5. It appears as white to yellowish crystals or powder with a slight sulfur odor. It is soluble in Water, Alcohol, and Glycerol at ambient conditions. Purified Grade, also known as Pure or Practical Grade, refers to those high-purity compounds that do not fulfill the ACS, the USP, or the FCC grade requirements. They are mostly used in conjunction with Lab Grade chemicals.

Common Uses

  • Reagent
  • Bleaching agent

Commercial/Industrial Applications

  • Oil & gas industry
  • Gold cyanidation processes
  • Wastewater treatment
  • Photography

Chemistry Table

7681-57-4
Na2S2O5
190.11

Sodium Metabisulfite Purified Features:

Assay Min. 97.0%
Insoluble Matter 0.005%
Chloride (Cl) 0.05%
Thiosulfate (S2O3) 0.05%
Heavy Metals (as Pb) 0.001%
Iron (Fe) 0.002%

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