Sulfurous acid (H₂SO₃)

Sulfurous acid (H₂SO₃)

Colorless, moderate acid, only known in aqueous solution.

Chemistry

Keywords

sulfurous acid, acid, oxoacid, acid rain, reducing, sulphite ion, sulphites, diprotic acid, sulfur dioxide, inorganic chemistry, chemistry

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Sulfuric acid (H₂SO₄)

A colorless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.

Hydrogen sulfide (H₂S)

A colorless, toxic gas with the characteristic odor of rotten eggs. It occurs in certain mineral waters and spring waters.

Sulfate ion (SO₄²⁻)

A compound ion produced when sulfuric acid releases protons.

Sulfur (S₈)

An odorless, yellow, solid substance, the 16th most common in the Earth´s crust. One of the best known sulfur compounds is pyrite, also known as ´fool´s gold´.

Sulfur dioxide (SO₂)

Sulfur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulfuric acid.

Sulfur trioxide (SO₃)

One of the oxides of sulfur, forms sulfuric acid with water.

Nitrous acid (HNO₂)

One of the oxoacids of nitrogen. Colorless, moderate acid with a pungent odor, that exists only in aqueous solution.

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