sulfonic acid

English

Alternative forms

Noun

sulfonic acid (countable and uncountable, plural sulfonic acids) (American spelling)

  1. (chemistry) a strong inorganic acid, HSO2OH
  2. (chemistry) the univalent functional group -SO2OH
  3. (chemistry) any member of the class or organic acids containing this group; used in detergents, dyes and ion exchange resins
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