fluoboric acid

fluo·​boric acid | \"+...-\

Definition of fluoboric acid 

: a poisonous strong acid HBF4 made in solution by dissolving boron trifluoride in water or by adding boric acid to concentrated hydrofluoric acid and used in solution or in the form of salts chiefly in electroplating baths

called also borofluoric acid

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History and Etymology for fluoboric acid

fluo- + boric

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