Properties of the Fluorine Element
Symbol of Element : F
Atomic Number : 9
Atomic Mass: 18.998404 amu
Melting Point: -219.62 °C - 53.530006 °K
Boiling Point: -188.14 °C - 85.01 °K
Number of Protons/Electrons : 9
Number of Neutrons: 10
Crystal Structure: Cubic
Density @ 293 K: 1.696 g/cm3
Definition of the Fluorine Element
A pale-yellow, highly corrosive, poisonous, gaseous halogen
element, the most electronegative and most reactive of all the
elements, used in a wide variety of industrially important
compounds. Fluorine is so reactive that glass, metals, and even
water, as well as other substances, burn with a bright flame in
a jet of fluorine gas. The
Atomic Number of this element is 9 and the
Element Symbol is F.
What is Fluorine?
An overview of the Fluorine Element
In a general overview
of the element we can at first describe Fluorine as a pale
yellow, white or colourless gas which can sometimes be
fluorescent. It is present in volcanic gases and thermal waters.
Its chief source is fluorite but it also occurs in cryolite,
seawater, bones, and teeth. Fluorine can only be produced by
electrolysis under special conditions. Its most important
compounds are fluorite, cryolite, and topaz.
Origin / Meaning of the name Fluorine
The name 'Flourine' was
coined in 1813 the by English chemist Sir Humphry Davy from
fluorspar, the name of the mineral where it was first found.
Fluorspar is the chief ore of fluorine. Its composition is
calcium fluoride. The mineral name of fluorspar was given by
Georg Agricola in 1546, translating the German name flusse from
the Latin word fluxus meaning "flowing or to flow". In
metallurgy, a flux is also derived from the Latin word fluxus
and is a chemical cleaning agent or flowing agent.
Facts about the
Discovery and History of the Fluorine
First described in 1529 by Georigius Agricola (1494-1555) for its use as a
flux. In 1813 Sir Humphry Davy experimented with Fluorspar and
attempted the extraction of Flourine, but failed. George Gore
was able to produce a small amount of fluorine through an
electrolytic process in 1869. It was successfully isolated by
Henri Moissan, a French chemist, in 1886. He achieved this
through the electrolysis of potassium fluoride and hydrofluoric
acid. In 1906 Henri Moissan won the Nobel Prize in Chemistry for
his work in isolating fluorine from its compounds.
Occurrence of the Fluorine Element
Obtained from the mineral fluorite
Abundances of the element in different environments
% in Universe
% in Sun 0.00005%
% in Meteorites 0.0087%
% in Earth's Crust 0.054%
% in Oceans 0.00013%
% in Humans 0.0037%
Medical Uses of
Fluorine - Health and Treatments - Dental Care
Interesting information on
the Medical Uses of Fluorine, Health and Treatments. Small
amounts of sodium fluoride added to the water supplies will
reduce the incidence of dental cavities, particularly among
children. Excessive amounts of fluoride can mottle tooth enamel
and cause osteosclerosis (an area of dense but normal bone in
Associated Uses of Fluorine
Soluble fluorides added to public water supplies have reduced
the incidence of tooth decay. It is also used in Toothpaste.
Other uses of Fluorine include the extraction of uranium, in Air
conditioning and Refrigeration and also as an insecticide.
Fluorocarbons such as Teflon have found extensive use as
lubricants because of their low friction.