Products
Sodium metabisulfite is used as an excipient in pharmaceuticals, especially in epinephrine injection solutions.
Structure and properties
Sodium metabisulfite (Na2S2O5, Mr = 190.1 g/mol) exists as a white crystalline powder or as colorless crystals and is readily soluble in water. It is the disodium salt of the dysulfurous acid.
Fields of application
As an antioxidant and preservative for pharmaceuticals and foods.
Adverse effects
Possible adverse effects include allergic reactions in sensitive individuals.
