Sulfurous acid

From Academic Kids

</table> Sulfurous acid (British English: Sulphurous), also known as sulfur dioxide solution, H2SO3, is a mineralacid (not an organic acid), formed when sulfur dioxide dissolves in water. It is a strong reducing agent, and is used to bleach materials that may be damaged by chlorine. In the atmosphere, sulfurous acid may form when sulfur dioxide dissolves in rain drops, causing acid rain.
The compound is only known in aqueous solution and is not isolated in its pure state. Template:Inorganic-compound-stubde:Schweflige Säurenl:zwavelig zuurpl:Kwas siarkowy(IV)

Properties

General

Name Sulfurous acid
Chemical formula H2SO3
Appearance Clear, colorless solution with a sulfurous odor.

Physical

Formula weight 82.07 amu
Density 1.03 ×103 kg/m3 (in aqueous solution)
Solubility Very soluble

Safety

Ingestion Severe and permanent damage may result.
Inhalation Causes irritation of the respiratory tract
Skin Causes burns.
Eyes Causes burns.
More info Hazardous Chemical Database (http://ull.chemistry.uakron.edu/erd/chemicals1/8/7110.html)

SI units were used where possible. Unless otherwise stated, standard conditions were used.

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