sulfonic acid


sulfonic acid
Any of the compounds in which a hydrogen atom of a CH group is replaced by the s. group, –SO3H; general formula : R–SO3H. SYN: sulfoacid (2).

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sulfonic acid n any of numerous acids that contain the SO3H group and may be derived from sulfuric acid by replacement of a hydroxyl group by either an inorganic anion or a monovalent organic group

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sul·fon·ic ac·id (səl-fonґik) an organic compound having the formula RSO2OH; used in synthesizing dyes and phenols.

Medical dictionary. 2011.