Ethanedisulfonic acid
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Names | |
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Preferred IUPAC name
Ethane-1,2-disulfonic acid | |
Other names
Edisylic acid
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.003.394 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C2H6O6S2 | |
Molar mass | 190.18 g·mol−1 |
Melting point | 172 to 174 °C (342 to 345 °F; 445 to 447 K)[1] 111-112 °C (dihydrate)[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ethanedisulfonic acid is a diprotic sulfonic acid, with pKa values of -1.46 and -2.06, making it a very strong acid. When used in pharmaceutical formulations, the salts with the active ingredient are known as edisylates.
See also
References
- ^ a b Merck Index, 11th Edition, 3679
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