English

Alternative forms

• sulphurous acid (mainly UK)

Noun

sulfurous acid ‎(uncountable)

1. (American, inorganic chemistry) The weak acid, H₂SO₃, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach.

Derived terms

• chlorethylsulfurous acid, chlorethylsulphurous acid

Related terms

• sulfite
• bisulfite

Translations