Sodium Metabisulfite, Lab Grade *

Also Known as Sodium Disulfite and Sodium Pyrosulfite


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About Sodium Metabisulfite, Lab Grade, Granular

Sodium Metabisulfite possesses a faint sulfur odor and appears as a white crystalline solid or powder. It produces a corrosive acid when mixed with water and can cause irritation to skin and other tissues in the human body. At elevated temperatures, it can break down into hazardous sulfur and oxide gases. It is certified as Lab Grade due to the presence of impurities. Lab grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity. Lab Alley’s Sodium Metabisulfite, Lab Grade is not only suitable for research labs and training purpose, but also industrial applications.

Common Uses and Applications

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


  • Oil & gas industry
  • Wastewater treatment

Chemistry Table


Sodium Metabisulfite, Lab Grade, Granular Specifications:

Assay (Na2S2O5) 90.0-100.5%
Iron (Fe) 10 mg/kg
Lead 2 mg/kg
Selenium (Se) 5 mg/kg

Safety and Handling

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

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