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dithionate(2−)

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Origin: China

Cas No: 14781-81-8

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CAS No.: 14781-81-8 Formula: O6S2-- Molecular Weight: 160.12600

Description
The dithionate (or metabisulfate) anion, S 2O2− 6, is a sulfur oxoanion derived from dithionic acid, H2S2O6. Its chemical formula is sometimes written in a semistructural format, as [O3SSO3]2−.
The sulfur atoms of the dithionate ion are in the +5 oxidation state due to the presence of the S–S bond. Generally dithionates form stable compounds that are not readily oxidised or reduced. Strong oxidants oxidise them to sulfates and strong reducing agents reduce them to sulfites and dithionites. Aqueous solutions of dithionates are quite stable and can be boiled without decomposition.
The γ-irradiation of crystalline dithionates produces •SO− 3 radical ions. The unpaired electron in the •SO− 3 radical can be detected with electron paramagnetic resonance and barium dithionate has been proposed as the basis for a radiation dosimeter.
The dithionate ion can act as a bidentate ligand.
The structure of the dithionate ion in the solid state is staggered in Na2S2O6·2H2O, whereas in the anhydrous potassium salt it is nearly eclipsed.

Basic Info

Chemical Name dithionate(2−)

Synonyms

CAS No. 14781-81-8

Molecular Formula O6S2--

Molecular Weight 160.12600

PSA 131.16000

LogP 0.15340

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