Ethanesulfonic acid

Ethanesulfonic acid (esylic acid) is a sulfonic acid with the chemical formula CH3CH2SO3H. The conjugate base is known as ethanesulfonate or, when used in pharmaceutical formulations, as esilate. It is a colorless liquid.[2]

Ethanesulfonic acid
Ethanesulfonic acid 3D
Ethanesulfonic acid 3D bonds
Names
IUPAC name
Ethanesulfonic acid
Other names
Esylic acid, ethylsulfonic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.950
EC Number
  • 209-843-0
UNII
Properties
C2H6O3S
Molar mass 110.13 g/mol
Appearance Colorless liquid
Density 1.35 g/mL
Melting point −17 °C (1 °F; 256 K)
Boiling point 122–123 °C (252–253 °F; 395–396 K) at 0.01 mmHg
Soluble
log P −0.37
Acidity (pKa) −1.68[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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Infobox references

References

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