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Chemical element with atomic number 9 (F)
Fluorine is a chemical element; it has the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic
Fluorine
Group of chemical elements
group in the periodic table consisting of six chemically related elements, fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and the radioactive elements
Halogen
Fluorine (9F) has 19 known isotopes ranging from 13 F to 31 F and two isomers (18m F and 26m F). Only fluorine-19 is stable and naturally occurring in
Isotopes_of_fluorine
Chemical compound
rising being lighter than air). It is the principal industrial source of fluorine, often in the form of hydrofluoric acid, and is an important feedstock
Hydrogen_fluoride
Organofluorine chemistry method
Electrochemical fluorination (ECF), or electrofluorination, is a foundational organofluorine chemistry method for the preparation of fluorocarbon-based
Electrochemical_fluorination
Covalent bond between carbon and fluorine atoms
The carbon–fluorine bond is a polar covalent bond between carbon and fluorine that is a component of all organofluorine compounds. It is one of the strongest
Carbon–fluorine_bond
Radical fluorination is a type of fluorination reaction, complementary to nucleophilic and electrophilic approaches. It involves the reaction of an independently
Radical_fluorination
History of the chemical element fluorine
Fluorine is a relatively new element in human applications. In ancient times, only minor uses of fluorine-containing minerals existed. The industrial
History_of_fluorine
Class of chemical compounds
Fluorocarbons are chemical compounds with carbon-fluorine bonds. Compounds that contain many C-F bonds often have distinctive properties, e.g., enhanced[clarification
Fluorocarbon
Any chemical compound having at least one fluorine atom
Fluorine forms a great variety of chemical compounds, within which it always adopts an oxidation state of −1. With other atoms, fluorine forms either polar
Fluorine_compounds
Isotope of fluorine emitting a positron
Fluorine-18 (18F, also called radiofluorine) is a fluorine radioisotope which is an important source of positrons. Its half-life is 109.734 minutes, less
Fluorine-18
Fluorine reaction
Electrophilic fluorination is the combination of a carbon-centered nucleophile with an electrophilic source of fluorine to afford organofluorine compounds
Electrophilic_fluorination
Fluorine is relatively rare in the universe compared to other elements of nearby atomic weight. On Earth, fluorine is essentially found only in mineral
Origin and occurrence of fluorine
Origin_and_occurrence_of_fluorine
Material
1629. It is commonly called fluorine rubber or fluoro-rubber. FKM is an abbreviation of Fluorkautschukmaterial (i.e. fluorine rubber material). All FKMs
FKM
Medical condition
Fluoride or fluorine deficiency is a disorder which may cause increased dental caries and possibly osteoporosis, due to a lack of fluoride in diet. Common
Fluorine_deficiency
Chemical compound
Fluorine fluorosulfate is an inorganic compound of fluorine, oxygen, and sulfur with the chemical formula F2O3S. The compound can be prepared by the reaction
Fluorine_fluorosulfate
Chemical compound
Fluorine perchlorate, also called perchloryl hypofluorite is the rarely encountered chemical compound of fluorine, chlorine, and oxygen with the chemical
Fluorine_perchlorate
Chemical reaction
Fluorination with aminosulfuranes is a chemical reaction that transforms oxidized organic compounds into organofluorine compounds. Aminosulfuranes selectively
Fluorination with aminosulfuranes
Fluorination_with_aminosulfuranes
Chemical compound
Dioxygen difluoride is a compound of fluorine and oxygen with the molecular formula O2F2. It can exist as an orange-red colored solid which melts into
Dioxygen_difluoride
Fluorine may interact with biological systems in the form of fluorine-containing compounds. Though elemental fluorine (F2) is very rare in everyday life
Fluorine_in_biology
Biogeochemical cycle
The fluorine cycle is the series of biogeochemical processes through which fluorine moves through the lithosphere, hydrosphere, atmosphere, and biosphere
Fluorine_cycle
Dating method
Fluorine absorption dating is a method used to determine the amount of time an object has been underground. Fluorine absorption dating is based on the
Fluorine_absorption_dating
Chemical compound
Fluorine azide or triazadienyl fluoride is a yellow green gas composed of nitrogen and fluorine with formula FN3. Its properties resemble those of ClN3
Fluorine_azide
Chemical element with atomic number 17 (Cl)
atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate
Chlorine
Ion of fluorine
Fluoride (/ˈflʊəraɪd, ˈflɔːr-/) is an inorganic, monatomic anion of fluorine, with the chemical formula F− (also written [F]− ), whose salts are typically
Fluoride
Mineral form of calcium fluoride
hydrofluoric acid manufacture, which is the intermediate source of most fluorine-containing fine chemicals. Optically clear transparent fluorite has anomalous
Fluorite
Chemical compound
Air Products and Chemicals, is a reagent in chemistry that is used as a fluorine donor. This compound is a derivative of the nucleophillic base DABCO. It
Selectfluor
Fluorine forms diatomic molecules (F 2) that are gaseous at room temperature with a density about 1.3 times that of air. Though sometimes described as
Phases_of_fluorine
Study of chemical compounds containing fluorine-carbon bonds
chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond. Organofluorine compounds find diverse applications ranging from oil
Organofluorine_chemistry
Variant of fluorite (CaF2)
and fluorine atoms. Fluorine atoms combine to produce difluoride anions and, upon losing the extra electrons at a defect, fluorine is formed. Fluorine subsequently
Antozonite
Swarts fluorination is a process whereby the chlorine atoms in a compound – generally an organic compound, but experiments have been performed using silanes
Swarts_fluorination
Chemical compound
F]fluoro-D-glucose, a glucose analog, with the positron-emitting radionuclide fluorine-18 substituted for the normal hydroxyl group at the C-2 position in the
Fluorodeoxyglucose_(18F)
on Fluorine Chemistry (ISFC) is an academic conference where researchers present their most recent original results on the chemistry of fluorine and
International Symposium on Fluorine Chemistry
International_Symposium_on_Fluorine_Chemistry
Chemical compound
Fluorine nitrate is an unstable derivative of nitric acid with the formula FNO 3. It is shock-sensitive. Due to its instability, it is often produced from
Fluorine_nitrate
Analytical technique
Fluorine-19 nuclear magnetic resonance spectroscopy (fluorine NMR or 19F NMR) is an analytical technique used to detect and identify fluorine-containing
Fluorine-19 nuclear magnetic resonance spectroscopy
Fluorine-19_nuclear_magnetic_resonance_spectroscopy
Any binary compound of oxygen and fluorine
Oxygen fluorides are compounds of elements oxygen and fluorine with the general formula OnF2, where n = 1 to 6. Many different oxygen fluorides are known:
Oxygen_fluoride
Chemical compound
Chlorine fluoride is an interhalogen compound containing only chlorine and fluorine. "Chlorine fluoride (ClF)". CAS Common Chemistry. "Chlorine trifluoride"
Chlorine_fluoride
Chemical compound
the nature of the carbon–fluorine bond. Because of the multiple carbon–fluorine bonds, and the high electronegativity of fluorine, the carbon in tetrafluoromethane
Carbon_tetrafluoride
covalent radius of fluorine is a measure of the size of a fluorine atom; it is approximated at about 60 picometres. Since fluorine is a relatively small
Covalent_radius_of_fluorine
Chemical reaction which adds one or more halogen elements to a compound
Fluorine and chlorine are more electrophilic and are more aggressive halogenating agents. Bromine is a weaker halogenating agent than both fluorine and
Halogenation
Stimulant designer drug
of the fluorine atom on the aromatic ring, making them positional isomers of one another. The replacement of a hydrogen atom with a fluorine atom in
2-Fluoroamphetamine
Chemical compound
formula CCl2FI. This is a halomethane containing two chlorine atoms, one fluorine atom, and one iodine atom attached to the methane backbone. Dichlorofluoroiodomethane
Dichlorofluoroiodomethane
Topics referred to by the same term
monofluoride, a compound containing only the chemical elements oxygen and fluorine Ordinary Form, in Roman Catholicism Outfielder, a defensive position in
OF
Chemical reaction
Fluorination by sulfur tetrafluoride produces organofluorine compounds from oxygen-containing organic functional groups using sulfur tetrafluoride. The
Fluorination by sulfur tetrafluoride
Fluorination_by_sulfur_tetrafluoride
Chemical compound
compound with the formula NiF2. It is an ionic compound of nickel and fluorine and forms yellowish to green tetragonal crystals. Unlike many fluorides
Nickel(II)_fluoride
Industry dealing with chemicals from fluorine
The global market for chemicals from fluorine was about US$16 billion per year as of 2006. The industry was predicted to reach 2.6 million metric tons
Fluorochemical_industry
Chemical reaction involving changes in oxidation state
Eo ox(anode) In the reaction between hydrogen and fluorine, hydrogen is being oxidized and fluorine is being reduced: H2 + F2 → 2 HF This spontaneous
Redox
Chemical compound
graphite fluoride, is a material formed by high-temperature reaction of fluorine gas with graphite, charcoal, or pyrolytic carbon powder. It is a highly
Carbon_monofluoride
Molecule containing only halogen elements of two or more kinds
compound is a molecule which contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine, or astatine) and no atoms of elements from
Interhalogen
Chemical compound
Oxygen monofluoride is an unstable binary inorganic compound radical of fluorine and oxygen with the chemical formula OF. This is the simplest of many oxygen
Oxygen_monofluoride
Chemical compound
equatorial fluorine atoms is 112.8°. The angle between axial fluorine and oxygen is 97.7°. The angle between oxygen and equatorial fluorine is 123.6° and
Thionyl_tetrafluoride
Chemical compound
It is made of carbon, hydrogen, and fluorine. The name stems from the fact that it is methane (CH4) with a fluorine atom substituted for one of the hydrogen
Fluoromethane
Chemical compound
the solid phase. The packing arrangement in solid XeF 2 shows that the fluorine atoms of neighbouring molecules avoid the equatorial region of each XeF
Xenon_difluoride
Class of perfluorinated chemical compounds
group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Because of their high chemical and thermal
PFAS
British chemist
general is based on fluorine chemistry, including on HCFCs, fluorine-containing organometallic systems, fluorophosphines and fluorine-containing materials
Alan_Brisdon
Chemical element with atomic number 85 (At)
estimated from its position on the periodic table as a heavier analog of fluorine, chlorine, bromine, and iodine, the four stable halogens. However, astatine
Astatine
Synthetic polymer
it is a high-molecular-weight polymer consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet
Polytetrafluoroethylene
Any of the chemical elements in the second row of the periodic table
contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon. In a quantum mechanical description of atomic structure, this
Period_2_element
Silicate mineral
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al2SiO4(F, OH)2. It is used as a gemstone in jewelry and other adornments
Topaz
German inorganic chemist (1936–2026)
his extensive experience in fluorine chemistry has earned him the title of 'The Fluorine God'. His research covered fluorine chemistry of nitrogen and halogens
Karl_O._Christe
Printmaking technique developed by artists of 20th century
Fluorine etching is a printmaking technique developed by a circle of artists working in Kraków and Warsaw in the first two decades of the twentieth century
Fluorine_etching
Chemical compound
M. (1995-03-03). "Fluorine for hydroxy substitution in biogenic amines: asymmetric synthesis and biological evaluation of fluorine-18-labeled
1-Fluoro(18F)-1-deoxyephedrine
1-Fluoro(18F)-1-deoxyephedrine
Fibrous amphibole mineral discovered in Sicily
aluminium, silicon, oxygen and fluorine. It belongs to the same family as the more common mineral edenite but has fluorine as a key component. Fluoro-edenite
Fluoro-edenite
British chemist (1932–2008)
August 2008) was a British chemist who specialized in fluorine and compounds containing fluorine, and became famous for creating the first noble gas compounds
Neil_Bartlett_(chemist)
Chemical compound
tetrafluoride is a binary inorganic compound of protactinium metal and fluorine with the chemical formula PaF4. Protactinium tetrafluoride can be obtained
Protactinium_tetrafluoride
The European Symposium on Fluorine Chemistry (ESFC) is a triennial academic conference on Fluorine chemistry founded in 1965. The conference is held in
European Symposium on Fluorine Chemistry
European_Symposium_on_Fluorine_Chemistry
Chemical compound
Calcium fluoride is the inorganic compound of the elements calcium and fluorine with the formula CaF2. It is a white solid that is practically insoluble
Calcium_fluoride
Chemical compound
Trifluoroacetyl fluoride is an organic compound of fluorine, oxygen, and carbon with the chemical formula C2F4O. The compound belongs to the group of carboxylic
Trifluoroacetyl_fluoride
Chemical compound
Krypton difluoride, KrF2 is a chemical compound of krypton and fluorine. It was the first compound of krypton discovered. It is a volatile, colourless
Krypton_difluoride
Tabular arrangement of the chemical elements
For example, fluorine has a lower electron affinity than chlorine (because of extreme interelectronic repulsion for the very small fluorine atom), but is
Periodic_table
Addition of fluoride to a water supply to reduce tooth decay
mountainous areas, can contain as much as 50 mg/L. Higher concentrations of fluorine are found in alkaline volcanic, hydrothermal, sedimentary, and other rocks
Water_fluoridation
Chemical compound
polyatomic weakly coordinating anions composed of antimony and fluorine, consisting of the fluorine adducts of antimony pentafluoride, [(SbF5)nF]−. They occur
Fluoroantimonate
Chemical compound
Arsenic pentafluoride is a chemical compound of arsenic and fluorine. It is a toxic, colorless gas. The oxidation state of arsenic is +5. Arsenic pentafluoride
Arsenic_pentafluoride
Separation of electric charge in a molecule
called its electronegativity. Atoms with high electronegativities – such as fluorine, oxygen, and nitrogen – exert a greater pull on electrons than atoms with
Chemical_polarity
Chemical compound
molecular compound of fluorine and sulfur. The molecule has a pair of sulfur atoms, with one fluorine atom on one sulfur, and three fluorine atoms on the other
Difluorodisulfanedifluoride
Class of organic compounds
hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F). They are produced as volatile derivatives of methane, ethane, and
Chlorofluorocarbon
Chemical element with atomic number 35 (Br)
17 of the periodic table. Its properties are thus similar to those of fluorine, chlorine, and iodine, and tend to be intermediate between those of chlorine
Bromine
Chemical compound
Dioxygen monofluoride is a binary inorganic compound radical of fluorine and oxygen with the chemical formula O2F. The compound is stable only at low temperature
Dioxygen_monofluoride
French chemist and pharmacist (1852–1907)
pharmacist who won the 1906 Nobel Prize in Chemistry for his work in isolating fluorine from its compounds. Among his other contributions, Moissan discovered moissanite
Henri_Moissan
Chemical compound
small quantities of water. The modern preparation entails the reaction of fluorine with a dilute aqueous solution of sodium hydroxide, with sodium fluoride
Oxygen_difluoride
Chemical compound
Bromyl fluoride is an inorganic compound of bromine, fluorine, and oxygen with the chemical formula BrO2F. A reaction of K+[BrF4O]− (potassium tetrafluorooxobromate(V))
Bromyl_fluoride
Chemical compound
Californium(III) fluoride is a binary inorganic compound of californium and fluorine with the formula CfF 3 Californium(III) fluoride is a yellow-green solid
Californium(III)_fluoride
Chemical compound
produced through the reaction of potassium fluoride, nickel dichloride, and fluorine. It reacts violently with water, releasing oxygen. It dissolves in anhydrous
Potassium hexafluoronickelate(IV)
Potassium_hexafluoronickelate(IV)
Chemical compound
inorganic molecular gas with formula PSF3 containing phosphorus, sulfur and fluorine. It spontaneously ignites in air and burns with a cool flame. The discoverers
Thiophosphoryl_fluoride
Chemical compound
Xenon octafluoride is a chemical compound of xenon and fluorine with the chemical formula XeF8. This is still a hypothetical compound. XeF8 is predicted
Xenon_octafluoride
Column of elements in the periodic table of the chemical elements
group zinc group boron group carbon group nitrogen group oxygen group fluorine group helium or neon group Period 1 H He Period 2 Li Be B C N O F Ne
Group_(periodic_table)
Chemical compound
fluoride is produced primarily by the fluorination of perchlorates. The initial syntheses in the early 1950s used fluorine gas or fluorides and anodic oxidation
Perchloryl_fluoride
Motif in solid state chemistry
calcium cations are surrounded by fluorine anions that occupy the tetrahedral sites, with an 8:4 coordination number, fluorine to calcium. This ratio is consistent
Fluorite_structure
Molecular-structural phenomenon
stabilization in the gauche isomer. Due to the greater electronegativity of fluorine, the C−H σ orbital is a better electron donor than the C−F σ orbital, while
Gauche_effect
Chemical compound used to oxidize another substance in a chemical reaction
Hydrogen peroxide (H2O2) and other inorganic peroxides, Fenton's reagent Fluorine (F2), chlorine (Cl2), and other halogens Nitric acid (HNO3) and nitrate
Oxidizing_agent
Group of low-reactive, gaseous chemical elements
1895, French chemist Henri Moissan attempted to form a reaction between fluorine, the most electronegative element, and argon, one of the noble gases, but
Noble_gas
One of the lightest perfluoro compounds
acid, with all three of the acetyl group's hydrogen atoms replaced by fluorine. It is a colorless liquid with a vinegar-like odor. TFA is a stronger acid
Trifluoroacetic_acid
Chemical compound
other tellurium compounds that contain fluorine, but only the two mentioned contain solely tellurium and fluorine. Tellurium difluoride, TeF2, and ditellurium
Tellurium_tetrafluoride
Pharmaceutical compound
the carbon atom of the 3,4-methylenedioxy ring have been replaced with fluorine atoms. Daniel Trachsel tested DFMDMA in humans and found that it was inactive
DFMDMA
Chemical compound
structure resembles methanol, but every hydrogen atom is replaced by a fluorine atom. Trifluoromethyl hypofluorite is a toxic gas at room temperature,
Trifluoromethyl_hypofluorite
Chemical compound
and fluorine, having the formula NSF3. It exists as a stable, colourless gas, and is an important precursor to other sulfur-nitrogen-fluorine compounds
Thiazyl_trifluoride
Danish scientist and researcher
1948) was a Danish scientist and researcher best known for his study of fluorine and fluoride toxicity. Eli Kaj Roholm was the son of Niels Christian Roholm
Kaj_Roholm
Chemical compounds containing at least one xenon atom
described. Almost all known xenon compounds contain atoms of electronegative fluorine or oxygen. The chemistry of xenon in each oxidation state is analogous
Xenon_compounds
Chemical compound
compound of osmium metal and fluorine with the chemical formula OsF 7. It was first reported in 1966 by the reaction of fluorine and osmium at 600 °C and
Osmium_heptafluoride
Chemical compound
Difluoroamino sulfur pentafluoride is a gaseous chemical compound of fluorine, sulfur, and nitrogen. It is unusual in having a hexa-coordinated sulfur
Difluoroamino sulfur pentafluoride
Difluoroamino_sulfur_pentafluoride
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