Sulfonic Acid

A sulfonic acid is an oxoacid that has the following general structural formula.



In the most common sulfonic acids, R is either an alkyl group (alkanesulfonic acid) or an aryl
group
(arenesulfonic acid).

eg. 1:



Using the symbol Ms, methanesulfonic acid can be shown conveniently as MsOH.

eg. 2:



Using the symbol Ts, p-toluenesulfonic acid can be shown conveniently as TsOH.

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