chlorosulfonic acid

chlo·​ro·​sulfonic acid
variants: or less commonly chlorsulfonic acid \ ¦klōr , -​ȯr+ \

Definition of chlorosulfonic acid

: a colorless fuming corrosive liquid ClSO3H made usually by reaction of gaseous hydrogen chloride with sulfur trioxide and used chiefly in organic synthesis (as of sulfa drugs, saccharin, and sulfonic acids)

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History and Etymology for chlorosulfonic acid

chlor- + sulfonic

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