Selenite (ion)
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Selenite is an ion. Its chemical formula is SeO2−3. It is the selenium structural analog of sulfite, SO2−3.
It makes the hydrogen selenite ion, HSeO−3, at neutral pH. When in acidic conditions it makes selenous acid. They are normally made by heating metal oxides with selenium dioxide. An example would be sodium selenite. Selenites are weak at oxidizing.[source?]
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