Ethanedisulfonic acid

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Ethane disulfonic acid
IUPAC name ethane-1,2-disulfonic acid
Identifiers
CAS number [110-04-3]
PubChem 8032
SMILES OS(=O)(=O)CCS(=O)(=O)O
Properties
Molecular formula C2H6S2O6
Molar mass 190.20 g/mol
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Ethanedisulfonic acid is a diprotic sulfonic acid, with pKa values of -1.46 and -2.06 making it a very strong acid.