Potassium Metabisulfite

CAS#: 16731-55-8

Synonyms: Disulfurous acid, dipotassium salt; potassium pyrosulfite; dipotassium disulfite; Pyrosulfurous Acid, dipotassium salt

Uses: Antiseptic, reagent, source of sulfurous acid, brewing (cleaning casks and vats), winemaking (said to kill only undesirable yeasts and bacteria), food preservative, developing agent (photography), process engraving and lithography, dyeing, antioxidant, bleaching agent.

Hazard: Risk of serious damage to eyes; may cause sensitization by skin contact, inhalation; ingestion may cause gastric disturbances