KF is the chemical formula for potassium fluoride, according to WebElements. The chemical compound generates the fluoride ion, which is used primarily in manufacturing applications and in chemistry, namely in the chemical conversion of chlorocarbons into fluorocarbons.
WebElements states that potassium fluoride is produced by dissolving potassium carbonate in excess hydrofluoric acid. Solid crystals of potassium biflouride are created when the solution is evaporated. As with other fluoride ion-based solutions, KF is poisonous for humans through either ingestion or inhalation. WebElements states that potassium fluoride is extremely corrosive and may cause severe burns when it comes into contact with human skin.