Fluorine Definition

Fluorine Sentence Examples

• It combines directly with fluorine at Ordinary temperature, and with chlorine, bromine and sulphur on heating.

• Balard completed for many years Berzelius's group of " halogen " elements; the remaining member, fluorine, notwithstanding many attempts, remained unisolated until 1886, when Henri Moissan obtained it by the electrolysis of potassium fluoride dissolved in hydrofluoric acid.

• Rosenbuschite, hiortdahlite, and some other rare members containing zirconium and fluorine, occur as accessory constituents in the nephelinesyenite of southern Norway.

• It is attacked rapidly by fluorine at ordinary temperature, and by chlorine when heated in a current of the gas.

• Silicon fluoride, SiF4, is formed when silicon is brought into contact with fluorine (Moissan); or by decomposing a mixture of acid potassium fluoride and silica, or of calcium fluoride and silica with concentrated sulphuric acid.