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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
Chemical element with atomic number 9 (F)
War II. Owing to the expense of refining pure fluorine, most commercial applications use fluorine compounds, with about half of mined fluorite used in steelmaking
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
Study of chemical compounds containing fluorine-carbon bonds
the chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond. Organofluorine compounds find diverse applications ranging
Organofluorine_chemistry
Chemical compound
industrial source of fluorine, often in the form of hydrofluoric acid, and is an important feedstock in the preparation of many important compounds including pharmaceuticals
Hydrogen_fluoride
everyday life, fluorine-containing compounds such as fluorite occur naturally as minerals. Naturally occurring organofluorine compounds are extremely rare
Fluorine_in_biology
Group of chemical elements
They include PCBs, PBDEs, and perfluorinated compounds (PFCs), as well as numerous other compounds. Fluorine reacts vigorously with water to produce oxygen
Halogen
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
Chemical reaction which adds one or more halogen elements to a compound
hazards of handling fluorine gas. Many commercially important organic compounds are fluorinated using this technology. Unsaturated compounds, especially alkenes
Halogenation
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
Hypothetical modification of Mars into an Earth-like habitable planet
greenhouse effect thousands of times stronger than that of CO2. Fluorine-based compounds such as sulphur hexafluoride and perfluorocarbons are preferable
Terraforming_of_Mars
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
Fluorine reaction
Electrophilic fluorination is the combination of a carbon-centered nucleophile with an electrophilic source of fluorine to afford organofluorine compounds. Although
Electrophilic_fluorination
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
Organofluorine chemistry method
fluorocarbon-based organofluorine compounds. The general approach represents an application of electrosynthesis. The fluorinated chemical compounds produced by ECF are
Electrochemical_fluorination
Chemical compound
they strengthen as more carbon–fluorine bonds are added to the same carbon atom. In the one-carbon organofluorine compounds represented by molecules of fluoromethane
Carbon_tetrafluoride
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
difluorodithiophosphate is an anion or chemical compound with phosphorus connected to two sulfur atoms and two fluorine atoms. It has a single negative charge
Difluorodithiophosphate
Chemical compounds containing at least one xenon atom
number of xenon compounds have been discovered and described. Almost all known xenon compounds contain atoms of electronegative fluorine or oxygen. The
Xenon_compounds
Chemical compound
sulfur-nitrogen-fluorine compounds. It has tetrahedral molecular geometry around the sulfur atom, and is regarded to be a prime example of a compound that has
Thiazyl_trifluoride
Chemical compound
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2000). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10
Difluoromethane
High temperature rotating oven used for producing clinker
process, gaseous inorganic chlorine compounds are either not emitted at all, or in very small quantities only. Of the fluorine present in rotary kilns, 90 to
Cement_kiln
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
inorganic compound with the chemical formula NHF2. It consists of an ammonia molecule on which two of the hydrogen atoms have been substituted by fluorine atoms
Difluoramine
Chemical compound
authors list (link) Klapötke, Thomas M. (2006). "Nitrogen–fluorine compounds". Journal of Fluorine Chemistry. 127 (6): 679–687. doi:10.1016/j.jfluchem.2006
Nitrogen_trifluoride
Chemical compound
Protactinium tetrafluoride is a binary inorganic compound of protactinium metal and fluorine with the chemical formula PaF4. Protactinium tetrafluoride
Protactinium_tetrafluoride
Form of fluorite and semi-precious mineral
it contains colours not associated with Blue John, suggesting they are compounds and not inclusions as in Blue John.[citation needed] Roman writers, such
Blue_John_(mineral)
Chemical compound
gaseous chemical compound with formula SiH2F2. It can be considered as a derivative of silane with two hydrogen atoms replaced with fluorine. Difluorosilane
Difluorosilane
Synthetic organic compounds
are synthetic organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds. Most are gases at room
Hydrofluorocarbon
Chemical compound
Benzoyl fluoride is an organic, aromatic compound of carbon, hydrogen, fluorine, and oxygen. It is the acyl fluoride of benzoic acid; its chemical formula
Benzoyl_fluoride
Anion
formula [BeF4]2−. It contains beryllium and fluorine. This fluoroanion has a tetrahedral shape, with the four fluorine atoms surrounding a central beryllium
Tetrafluoroberyllate
Mineral form of calcium fluoride
the production of AlF3 and cryolite (Na3AlF6), which are the main fluorine compounds used in aluminium smelting. Alumina is dissolved in a bath that consists
Fluorite
Chemical compound
with thiazyl trifluoride, NSF3, it is a precursor to sulfur-nitrogen-fluorine compounds. Thiazyl fluoride can be synthesized by the reaction of imino(triphenyl)phosphines
Thiazyl_fluoride
History of the chemical element fluorine
that fluorine was a bound element within compounds, similar to chlorine. Fluorite was determined to be calcium fluoride. Because of fluorine's tight
History_of_fluorine
Chemical compound
Fluoroacetic acid. Timperley, Christopher M. (2000). "Highly-toxic fluorine compounds". Fluorine Chemistry at the Millennium. pp. 499–538. doi:10.1016/B978-008043405-6/50040-2
Fluoroacetic_acid
Any chemical compound having at least one radon atom in its structure
gas removal in uranium mines due to the formation of radon–fluorine compounds. Radon compounds can be formed by the decay of radium in radium halides, a
Radon_compounds
Chemical compound
Aug 2014. Aigueperse J, Mollard P, Devilliers D, et al. (2005). "Fluorine Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim:
Lithium_fluoride
Chemical compound
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2000). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10
Perfluoroisobutene
Chemical reaction
for 4-fluorobenzaldehyde, Roe A (1949). "Preparation of Aromatic Fluorine Compounds from Diazonium Fluoborates". Org. React. 5: 193. doi:10.1002/0471264180
Balz–Schiemann_reaction
Class of chemical compounds
Class of chemical compounds
Azadipyrromethene
Chemical compound
Potassium hexafluorotitanate is an inorganic compound of potassium, fluorine, and titanium with the chemical formula K2TiF6. Hydrofluoric acid reacts
Potassium_hexafluorotitanate
Edition Supplement: Organo-Fluorine Compounds - Synthesis of Fluorinated Compounds II, Transformations of Fluorinated Compounds. Georg Thieme Verlag. 2014
List_of_gases
Pharmaceutical compound
Pharmaceutical compound
VVD-214
Class of chemical compounds
distinct from the iodate fluorides which are mixed anion compounds that do not have fluorine-iodine bonds. Fluoroiodates are transparent in visible, longer
Fluoroiodate
Chemical compound
1.5-2.0 × 1012 cm-2. In molecular clouds CF+ contains about 1% of the fluorine, with the rest being in HF molecules. CF+ has been detected in the N113
Fluoromethylidynium
Different oxidation states of Oxygen
action of fluorine and certain fluorine compounds. Simple oxygen fluorides are known. Among the most important classes of organic compounds that contain
Oxygen_compounds
One of the lightest perfluoro compounds
Schwertfeger; A. Feiring; B. Smart; F. Behr; H. Vogel; B. McKusick. "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim:
Trifluoroacetic_acid
Chemical compound
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2010). "Fluorine Compounds, Organic". In Bohnet, Matthias; Bellussi, Giuseppe; Bus, James; et al
1,1-Difluoroethane
Molecule containing only halogen elements of two or more kinds
In chemistry, an interhalogen compound is a molecule which contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine, or astatine)
Interhalogen
Chemical compound
Potassium hexafluorozirconate is an inorganic compound of potassium, fluorine, and zirconium with the chemical formula K2ZrF6. It is the potassium salt
Potassium_hexafluorozirconate
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 element with atomic number 28 (Ni)
456–457. ISBN 0-13-841891-8. Court, T. L.; Dove, M. F. A. (1973). "Fluorine compounds of nickel(III)". Journal of the Chemical Society, Dalton Transactions
Nickel
Chemical compound
react with the semiconductor material. ClF3 is used for the fluorination of a variety of compounds. Chlorine trifluoride has been investigated as a high-performance
Chlorine_trifluoride
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 element with atomic number 74 (W)
reacts with oxygen to form the trioxide compound tungsten(VI), WO3. It will, however, react directly with fluorine (F2) at room temperature to form tungsten(VI)
Tungsten
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
Regulatory term for fluorinated greenhouse gases
Earth's atmosphere as of year 2015. Perfluorocarbons (PFCs), compounds consisting only of fluorine and carbon, are used in the electronics industries, as well
Fluorinated_gases
Chemical compound
Rubidium hexafluorotitanate is an inorganic compound of rubidium, fluorine, and titanium with the chemical formula Rb2TiF6. Rubidium hexafluorotitanate
Rubidium_hexafluorotitanate
Chemical compound
; Stein, L.; Studier, M. H.; Weeks, J. L.; Zirin, M. H. (1962). "Fluorine Compounds of Xenon and Radon". Science. 138 (3537): 136–138. Bibcode:1962Sci
Xenon_tetrafluoride
Chemical element with atomic number 17 (Cl)
in the form of ionic chloride compounds, which includes table salt. It is the second-most abundant halogen (after fluorine) and 20th most abundant element
Chlorine
Solution of hydrogen fluoride in water
is in organofluorine chemistry. Many organofluorine compounds are prepared using HF as the fluorine source, including Teflon, fluoropolymers, fluorocarbons
Hydrofluoric_acid
Chemical compound
Lithium hexafluorotitanate is an inorganic compound of lithium, fluorine, and titanium with the chemical formula Li2TiF6. Interaction of titanium hydroxide
Lithium_hexafluorotitanate
Chemical compound
Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine; Kirschtitle=Fluorine Compounds, Organic, Peer (2016). Ullmann's Encyclopedia of Industrial Chemistry
Tetrafluoroethylene
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 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
Chemical compound
Danicamtiv
Chemical compound
the electron-donating properties of the three (CH3)2N substituents. This compound is prepared from sulfur tetrafluoride: 3 (CH3)2NSi(CH3)3 + SF4 → 2 (CH3)3SiF
TASF_reagent
Chemical compound
Retrieved 11 January 2026. Kazanskii, B. A. (1 November 1973). Organic Compounds : Reactions and Methods. Springer. p. 185. ISBN 978-0-306-67122-7. Retrieved
Fluorosulfonyl_isocyanate
Medication
Pharmaceutical compound
Flotufolastat_(18F)
Gas layer surrounding Earth
such as chlorine (elemental or in compounds), fluorine compounds, and elemental mercury vapor. Sulfur compounds such as hydrogen sulfide and sulfur
Atmosphere_of_Earth
sulfur of length 143.2 pm. Also one fluorine atom on the equator has a bond length of 157.9 pm. The two other fluorine atoms at the apexes of the pyramids
Trifluorosulfate
Study of compounds containing xenon-carbon bonds
the properties of organoxenon compounds, which contain carbon to xenon chemical bonds. The first organoxenon compounds were divalent, such as (C6F5)2Xe
Organoxenon_chemistry
Functional group
by a fluorine atom. Some common examples are trifluoromethane H−CF3, 1,1,1-trifluoroethane H3C−CF3, and hexafluoroacetone F3C−CO−CF3. Compounds with this
Trifluoromethyl_group
Chemical compound
l'existence d'un composé oxygéné du fluor" [The existence of an oxygen compound of fluorine]. Comptes rendus hebdomadaires des séances de l'Académie des Sciences
Oxygen_difluoride
Chemical compound
and Quarterman, LA and Schreiner, F. and Selig, HH; et al. (1962). "Fluorine Compounds of Xenon and Radon". Science. 138 (3537): 136–138. Bibcode:1962Sci
Xenon_difluoride
Chemical element with atomic number 84 (Po)
common compounds, and almost all of its compounds are synthetically created; more than 50 of those are known. The most stable class of polonium compounds are
Polonium
Ion
ions (such as [Me2Cl]+[Al(OTeF5)4]–) as well as cyclic haliranium ions, fluorine was not believed to form fluoronium ions of type R–+F–R until the recent
Fluoronium
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 compound
organofluorine compound with the chemical formula C6F6. In this derivative of benzene, all hydrogen atoms have been replaced by fluorine atoms. The technical
Hexafluorobenzene
Family of polymers
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2002). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim:
Perfluoroalkoxy_alkane
Chemical compound
fluoride. The compound is the lowest mass member of the hydrofluorocarbon (HFC) family, compounds which contain only hydrogen, fluorine, and carbon. These
Fluoromethane
Industry dealing with chemicals from fluorine
hydrofluoric acid, which is a chemical intermediate for most fluorine-containing compounds. Significant direct uses of HF include pickling (cleaning) of
Fluorochemical_industry
Chemical compound
Caesium heptafluoroxenate is an inorganic compound of caesium, and fluorine, and xenon with the chemical formula Cs[XeF7]. It consists of caesium cations
Caesium_heptafluoroxenate
Chemical compound
hexafluorotitanate is the inorganic compound with the chemical formula (NH4)2[TiF6]. A colorless salt, the compound consists of ammonium ions and the hexafluorotitanate
Ammonium_hexafluorotitanate
Class of chemical compounds
hydroxyl substituted by fluorine. The fluorosulfate ion has a low propensity to form complexes with metal cations. Since fluorine is similar in size to
Fluorosulfates
Chemical compound
oxidant, this compound was found to be a suitable reagent for introducing trifluoromethyl groups onto electron-rich aromatic compounds by Langlois; this
Sodium trifluoromethanesulfinate
Sodium_trifluoromethanesulfinate
Chemical compound
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2000). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10
Perfluoropropionic_acid
Chemical compound
chemical compound of nitrogen, chlorine, and fluorine with the molecular formula NClF2. Chlorodifluoroamine can be synthesized by the effect of fluorine on
Chlorodifluoroamine
Chemical compound
v t e Fluorine compounds v t e Salts and covalent derivatives of the fluoride ion HF ?HeF2 LiF BeF2 BF BF3 B2F4 +BO3 CF4 CxFy +CO3 +C2O4 NF3 FN3 N2F2 NF
Dichlorodifluoromethane
Chemical element with atomic number 35 (Br)
electronegativity higher than bromine's (oxygen, nitrogen, fluorine, and chlorine), so that the resultant binary compounds are formally not bromides but rather oxides
Bromine
1952 air pollution event
of smoke particles, 140 tonnes of hydrochloric acid, 14 tonnes of fluorine compounds and 370 tonnes of sulphur dioxide which may have been converted to
Great_Smog_of_London
Chemical compound
hexafluorotitanate is an inorganic compound of sodium, fluorine, and titanium with the chemical formula Na2TiF6. The compound forms white powder. It is mostly
Sodium_hexafluorotitanate
Chemist notable for his work with fluorine compounds
G. Streng was an experimental chemist, notable for his work with fluorine compounds. His work on the synthesis and properties of dioxygen difluoride,
Alex_G._Streng
Chemical propellant and refrigerant
Sart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2002). "Fluorine Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim:
Chlorodifluoromethane
Chemical compound
Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine (2000), "Fluorine Compounds, Organic", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim
Perfluorobutanoic_acid
French chemist and pharmacist (1852–1907)
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 element with atomic number 55 (Cs)
commercial compounds of caesium are caesium chloride and nitrate. Alternatively, caesium metal may be obtained from the purified compounds derived from
Caesium
Chemical compound
Ammonium hexafluorozirconate is a complex inorganic compound of nitrogen, hydrogen, fluorine, and zirconium with the chemical formula (NH4)2ZrF6. It is
Ammonium_hexafluorozirconate
Chemical compound
central carbon atom and two orbitals on the fluorine atoms. Four electrons, the carbon orbital is empty, the fluorine orbitals both carry two electrons, need
Difluorocarbene
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
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
Girl/Female
French, German, Latin
Florence; Blooming
Male
Romanian
Romanian form of Roman Latin Florian, FLORIN means "flower."
Girl/Female
American, Christian, French, German, Latin
Flower; Blossom; Blooming; Form of Florence
Boy/Male
Australian, French, Latin
Bloom; Flower
Girl/Female
Australian, French, German, Latin, Romanian, Swiss
In Bloom; Florence; Blooming
Boy/Male
Latin
Laurel.
Girl/Female
Latin
Flower.
Surname or Lastname
German and Jewish (Ashkenazic)
German and Jewish (Ashkenazic) : from Middle High German kint, German Kind ‘child’, hence a nickname for someone with a childish or naive disposition, or an epithet used to distinguish between a father and his son. In some cases it may be a short form of any of various names ending in -kind, a patronymic ending of Jewish surnames.Dutch : variant spelling of Kint, cognate with 1, also found in such forms as ’t Kind and compounds such as Jongkind.English : nickname from Middle English kind (Old English gecynde) in any of its many senses: ‘legitimate’, ‘dutiful’, ‘benevolent’, ‘loving’, ‘gracious’.
Boy/Male
Latin
In bloom.
Surname or Lastname
English
English : one of the most common and widespread of English surnames, either a nickname for someone who was fond of dressing in this color (Old English grēne) or who had played the part of the ‘Green Man’ in the May Day celebrations, or a topographic name for someone who lived near a village green, Middle English grene (a transferred use of the color term). In North America this name has no doubt assimilated cognates from other European languages, notably German Grün (see Gruen).Jewish (American) : Americanized form of German Grün or Yiddish Grin, Ashkenazic ornamental names meaning ‘green’ or a short form of any of the numerous compounds with this element.Irish : translation of various Gaelic surnames derived from glas ‘gray’, ‘green’, ‘blue’. See also Fahey.North German : short form of a habitational name from a place name with Gren- as the first element (for example Greune, Greubole).
Boy/Male
Latin
In bloom.
Girl/Female
American, British, English
From Lorraine; Lorraine is an Area in Eastern France
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
Boy/Male
Indian, Sanskrit
Sacred Light
Girl/Female
Muslim/Islamic
To walk with a proud swinging gait
Female
Russian
(Ðглаий) Russian form of Greek Aglaia, the myth name of one of the three Graces, AGLAII means "beauty, splendor."
Male
English
Pet form of English Hugh, HUGHIE means "heart," "mind," or "spirit."
Girl/Female
Arabic, Muslim
Intelligent
Boy/Male
Tamil
Kanhu | காநà¯à®¹à¯à®‚Â
One of the childhood name of Lord Krishna
Girl/Female
Arabic, Australian, Hindu, Indian
Everlasting
Male
Russian
(Леонид) Russian form of Greek Leonidas, LEONID means "lion's son."
Girl/Female
German
Wanderer
Girl/Female
Tamil
Eternal, Constant
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
FLUORINE COMPOUNDS
a.
Pertaining to, obtained from, or containing, fluorine.
n.
A fluoride.
n.
A binary compound of fluorine with another element or radical.
n.
Calcium fluoride, a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor.
a.
Containing, or composed of, silicon and fluorine; especially, denoting the compounds called silicofluorides.
n.
Material for the construction of a floor or floors.
n.
A colorless, crystalline hydrocarbon, C13H10 having a beautiful violet fluorescence; whence its name. It occurs in the higher boiling products of coal tar, and is obtained artificially.
a.
Pertaining to, derived from, or consisting of, fluorine and boron.
n.
A manganese phosphate near triplite, but containing hydroxyl instead of fluorine.
n.
Fluorine.
a.
Pertaining to, or containing, hydrogen and fluorine; fluohydric; as, hydrofluoric acid.
n.
See Fluorite.
a.
Combined with fluorine; subjected to the action of fluoride.
a.
Composed of, or derived from, silicon and fluorine.
n.
Alt. of Fluocerite
p. pr. & vb. n.
of Flour
n.
A silver coin of Florence, first struck in the twelfth century, and noted for its beauty. The name is given to different coins in different countries. The florin of England, first minted in 1849, is worth two shillings, or about 48 cents; the florin of the Netherlands, about 40 cents; of Austria, about 36 cents.
n.
A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colorless gas. Symbol F. Atomic weight 19.