Methanesulfonic acidMethanesulfonic acid (MsOH, MSA) is an organosulfuric, colorless liquid with the molecular formula CH3SO3H and structure H3C\sS(\dO)2\sOH. It is the simplest of the alkylsulfonic acids (R\sS(\dO)2\sOH). Read from the Chembox of the Wikipedia article Methanesulfonic acid, revision 1380018491.

Property

Value

Formula

CH4O3S, 96.11 g/mol

Melting point

18 °C

Boiling point

167 °C

Density

1.48 g/cm³

log P, measured

-2.424

pKa

-1.9

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