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Ethanedisulfonic acid - Wikipedia Jump to content

Ethanedisulfonic acid

From Wikipedia, the free encyclopedia
Ethane disulfonic acid
Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name
Ethane-1,2-disulfonic acid
Other names
Edisylic acid
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.003.394 Edit this at Wikidata
UNII
  • InChI=1S/C2H6O6S2/c3-9(4,5)1-2-10(6,7)8/h1-2H2,(H,3,4,5)(H,6,7,8) ☒N
    Key: AFAXGSQYZLGZPG-UHFFFAOYSA-N ☒N
  • InChI=1/C2H6O6S2/c3-9(4,5)1-2-10(6,7)8/h1-2H2,(H,3,4,5)(H,6,7,8)
    Key: AFAXGSQYZLGZPG-UHFFFAOYAT
  • OS(=O)(=O)CCS(=O)(=O)O
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).
☒N verify (what is checkY☒N ?)

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

[edit]

References

[edit]
  1. ^ a b Merck Index, 11th Edition, 3679










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