potassium fluoride

noun

Definition of potassium fluoride

  1. :  any of several salts made usually by reaction of hydrofluoric acid with potassium carbonate: such as a :  the hygroscopic crystalline normal salt KF used chiefly as a solder flux and as a fluorinating agent in organic synthesis b or potassium bifluoride :  the poisonous corrosive crystalline acid fluoride KHF2 used chiefly as an electrolyte in the manufacture of fluorine and as a solder flux :  potassium hydrogen fluoride

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