chlorosulfonic acid

noun

chlo·​ro·​sulfonic acid

variants or less commonly chlorsulfonic acid

¦klōr,

-ȯr+

: 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)

Word History

Etymology

chlor- + sulfonic

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