How is fluorine purified?

Answer 1

Fluorine (IPA: /ˈflʊərɪːn, -ɔːrɪːn/, from Latin fluere, meaning "to flow"), is the chemical element with the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure) form, fluorine is a poisonous, pale, yellow-green gas, with chemical formula F2. Like other halogens, molecular fluorine is highly dangerous; it causes severe chemical burns on contact with skin.

Fluorine's relatively large electronegativity and small atomic radius give it interesting bonding characteristics, particularly in conjunction with carbon.

Answer 2

Fluorine can be purified through fractional distillation of its stable isotope, fluorine-19, which involves repeatedly distilling the compound to separate it from impurities. Another method involves reacting fluorine gas with potassium metal to form potassium fluoride, which is then distilled to extract pure fluorine.