Sulfurous acid is a colorless liquid with a pungent smell of SO2. It is produced when sulfur dioxide dissolved in water. It is the aqueous solution of SO2. Its chemical formula is H2SO3. Sulfurous acid is also known as Sulfuric(IV) acid and thionic acid. It is a sulfur oxoacid. It is a conjugate acid of a hydrogensulfite. It is a tautomer of a sulfonic acid. Sulphurous acid is a strong reducing agent. It has a +4 oxidation state that can oxidise up to +6 when sulphurous acid reduces other substances. It has various applications in chemical labs and industrial processes.
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Application :
- Sulfurous acid can reduce chlorine to hydrochloric acid.
- It can be oxidized to sulphate or sulfuric acid by accepting another oxygen atom.
- Sulfurous acid is used as an intermediate in the production of various chemicals, such as sulfonic acids and sulfites.
Key features :
- Gives reliable results
- Deliver accurate and reliable results
- Used as an intermediate in industries