Sodium hydrogen sulfite

Further names
  • Sodium hydrogen sulfite 38/40% technical
  • Sodium hydrogen sulfite 38/40% food grade
Form of delivery
Chemical formula
CAS number

Product information

Sodium bisulfite is the salt of sulfurous acid. Among other things, sodium bisulfite is produced in large-scale chemical processes using sulfur dioxide and sodium carbonate. Sodium bisulfite occurs as a sulfonate in many compounds, for example in detergents and surfactants, and is used on an industrial scale for the purification of ketone and aldehyde compounds. Due to its reducing properties, it is popular as a reducing agent, for example in wastewater treatment. 


  • Food additive
  • Starch and sugar production
  • Antioxidant
  • Stabilizer in food
  • Wastewater treatment
  • Paper industry
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