A salt or ester of dithionic acid, containing the S₂O₆²⁻ ion, used in industrial processes and specialized chemistry.
From 'dithionic' (relating to two sulfur atoms with specific oxidation states) + '-ate' (salt suffix). A IUPAC chemical nomenclature term.
Dithionates were crucial to early photography because they helped create stable photographic emulsions, and some industrial processes still use them to stabilize certain dyes.
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