Another approach is the reaction of aziridine with sulfurous acid.

It dissolves in water to produce sulfurous acid.

It is the beryllium salt of sulfurous acid.

It is more stable than sulfurous acid.

Sulfurous acid is not an isolable compound and does not appear to exist in solution either.

It has strong reducing properties and decomposes to sulfurous acid and sulfide.

It is made when sulfurous acid (a solution of sulfur dioxide in water) is deprotonated.

There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase.

Sulfurous acid is an intermediate species in the formation of acid rain from sulfur dioxide.

The equation may be rewritten as follows ('c.f.' sulfurous acid):

Selenous acid is analogous to sulfurous acid, but it is more readily isolated.

Sometimes, additional acids, such as ascorbic, sorbic and sulfurous acids, are used in winemaking.

It may be prepared by reacting lime with an excess of sulfurous acid, essentially a mixture of sulfur dioxide and water.

The parent compound (with the organic substituent replaced by hydrogen) is the hypothetical compound sulfurous acid.

Ternary acids include nitric acid, sulfuric acid, and sulfurous acid.

Sulfurous acid is a weak acid with the chemical formula HSO.

These include acid rain where sulfur dioxide in the airshed is dissolved in rainfall to produce sulfurous acid.

In order to prevent enzymatic darkening of potato juice the chemical refining of starch is carried out using sulfurous acid.

Sulfur dioxide, which does not form the non-existent sulfurous acid but does react with bases to form sulfites.

Around that time he made highly remarkable investigations into the kinetics of the iodine clock reaction between iodic acid and sulfurous acid.

Although formally derived from sulfurous acid, dimethyl sulfite is prepared from thionyl chloride and methanol.

This led to a global increase in sulfurous acid (HSO) concentration in high-level cirrus clouds.

Diethyl sulfite (CHOS) is an ester of sulfurous acid.

Thiobacillus thioparus may contribute to the formation of acid rain through the oxidation of sulfur dioxide to sulfurous acid.

Barium sulfite is the barium salt of sulfurous acid with the chemical formula BaSO.