fluosulfonic acid

noun
fluo·​sulfonic acid | \"+...-\

Definition of fluosulfonic acid 

: a fuming corrosive liquid acid FSO3H that has an irritating odor, that is made by treating hydrogen fluoride with sulfur trioxide, and that is used chiefly as a catalyst in alkylation and polymerization reactions and as a reagent in organic synthesis

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History and Etymology for fluosulfonic acid

International Scientific Vocabulary fluo- + sulfonic

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