Sodium Metabisulfite

Sodium Metabisulfite

Sodium Metabisulfite (sodium bisulfite anhydrous, sodium pyrosulfite) is a white inorganic crystalline compound with the chemical formula Na2S2O5.

 

Applications

  • - Dechlorination in municipal wastewater, pulp & paper, power, and textile water treatment plants
  • - Disinfectant
  • - Water treatment in leather tanning process
  • - Preservative in food applications
  • - Oxygen scavenger
  • - Cherry brining process
  • - Gold mining industry
  • - Preservative in photo developer solutions
  • - Antioxidant
  • - Used in production of cleaning agents, detergents, and soaps

 

Chemical Composition

Sodium Metabisulfite, wt% 98.7% min.
Assay as SO2 66.5 min.
Insolubles, wt% ≤ 0.005
Chloride, wt% ≤ 0.05
Thiosulfate, wt% ≤ 0.05
Arsenic, ppm ≤ 1.0
Heavy metals, ppm ≤ 10.0
Iron as (Fe), ppm ≤ 2.0
Selenium, ppm ≤ 5.0
Lead as (Pb), ppm ≤ 2.0

Product meets FCC, ACS, and/or USP standards. Also Kosher and NSF certified.

Packaging

50lb bags/42 bag pallets 2,000lb super sack Other weights available upon request

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