Sulfite
A sulfite is an ion that is made of one sulfur atom and three oxygen atoms; it has a charge of two minus. Sulfite is made when sulfurous acid (a solution of sulfur dioxide in water) is deprotonated. Salts containing the sulfite ion are called sulfites. Sodium sulfite is an example. Sulfites are weak reducing agents; they can be oxidized to sulfates. They are used to preserve dried food. Some people have allergies to sulfite in food, and it makes them sick. It contains sulfur in the +4 oxidation state. Its chemical formula is SO32-.
Sulfite Media
A space-filling model of the sulfite anion.
The structure of the sulfite anion
Sulfite is a ligand in coordination chemistry. The structure of Co(ethylenediamine)2(SO3)N3.
Resonance structures of the sulfite ion
- BisulfiteequilibriumD
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