Buy Sulfurous Acid (7782-99-2) MF: H2O3S | MW: 82.08. Get High Quality Sulfurous Acid (7782-99-2) from ChemieR.
Sulfurous acid, also referred to as Sulfuric(IV) acid and thionic acid, is a colorless liquid that emits a pungent smell of SO2. This compound is formed when sulfur dioxide dissolves in water, resulting in an aqueous solution of SO2. Its chemical formula is H2SO3. Sulfurous acid is classified as a sulfur oxoacid and serves as the conjugate acid of a hydrogensulfite. Additionally, it exists as a tautomer of a sulfonic acid. Notably, sulphurous acid exhibits strong reducing properties and possesses a +4 oxidation state, which can be further increased to +6 when it acts as a reducing agent for other substances.
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Application :
- Sulfurous acid can reduce chlorine to hydrochloric acid.
- It can be oxidised to sulphate or sulfuric acid by accepting another oxygen atom.
- It is used to bleach straw and paper products, such as hats and bags.
- It is used as a good disinfecting agent.
Benefits :
- As reducing agents
- Used as an intermediate in industries
- As disinfectants
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