Sodium Metabisulfite, ACS Grade, Granular *

Also Known as Sodium Disulfite and Sodium Pyrosulfite


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About Sodium Metabisulfite, ACS Grade, Granular

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. The Analytical Reagent Grade is generally equivalent to the American Chemical Society (ACS) Grade and is acceptable for use in analytical applications and research laboratories. Lab Alley is selling its premium quality Sodium Metabisulfite, Analytical Reagent Grade online at in the United States of America (USA) and highly recommends using it in research labs for precise, repetitive, and consistent results.

Common Uses and Applications

  • Reagent
  • Drying agent
  • Wood pulp
  • Gold recovery and cleaning processes


  • Oil & gas industry
  • Wastewater treatment

Chemistry Table


Sodium Metabisulfite, ACS Grade, Granular Specifications:

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%

Safety and Handling

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Sodium Metabisulfite, ACS Grade, Granular. 

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