How To Use Fluorine In A Sentence
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Fluids, immiscible droplets of metal sulphides, and elements like boron and fluorine are concentrated in the remaining melt.
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Feldspar has been hydrothermally altered by a fluorine-rich water vapor to quartz, mica (usually lithian), topaz and/or tourmaline with fluorite, cassiterite, molybdenite, rutile, and wolframite as typical accessory minerals.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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This was a development of the mysterious attraction which weak light appearing in darkness had had for him since his boyhood, when he had, with his school fellows, warmed fluorine crystals to make them luminescent; and now he took up, with the astronomer W. Wolf, the study of the luminosity of pyrogallic acid when it is mixed with alkali and bisulphite for developing photographs.
Philipp Lenard - Biography
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The ozone depleting compounds contain combinations of the elements chlorine, fluorine, bromine, carbon and hydrogen.
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The name fluorine comes from the mineral fluorspar, or calcium fluoride, in which it was found.
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This process also breaks off bits of the fluorine from the cryolite, which escapes the smelter in the form of perfluorocarbons PFCs—these are the most noxious of greenhouse gases, trapping thousands of times more heat than carbon dioxide.
THE STORY OF STUFF
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In the stratosphere, the source gases are converted through photolysis and reaction with the hydroxyl radical to inorganic species of bromine, chlorine, and fluorine.
Factors affecting arctic ozone variability in the Arctic
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Even after evacuation, long-term inhalation of ash and exposure to fluorine may result in reduced productivity.
Volcanic Ash—Effects on Agriculture and Mitigation Strategies
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Dry chlorine, iodine, bromine and fluorine cause little or no corrosion of magnesium at room or slightly elevated temperature.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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A gas mixture of a gas discharge laser such as an excimer or molecular fluorine laser is stabilized.
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The start of fluorine chemistry can be traced back to the isolation of elemental fluorine, FCF 2, by Henri Moissan in 1886.
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Fluorine never occurs as an element in nature, but is found in minerals such as fluorspar, fluorapatite, and cryolite.
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According to the trait of rocket propellant a kind of protective gloves made of composite fluorine rubber is developed which can be used to protect the skin of red fuming nitric acid worker.
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Brazil is the main source of gem topaz (an aluminium silicate fluoride in which hydroxyl ions replace some of the fluorine ions) Topaz can be colourless, blue, and rarely pink as well as the more familiar yellow.
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Previous attempts to lower the switching temperature have incorporated low levels of elements such as tungsten, molybdenum, niobium and fluorine.
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At a red heat platinic fluoride decomposes into metallic platinum and fluorine, which is evolved in the free state.
Scientific American Supplement, No. 832, December 12, 1891
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Most common apatites are fluorine rich; however, they may contain appreciable amounts of chlorine.
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Once the active fluorine is chemically bound the resulting molecule is generally stable and unreactive.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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The main chemical feature that distinguishes fluoroquinolones from the early quinolones is the presence of a fluorine at position six.
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The halides all contain halogen elements, such as chlorine and fluorine.
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Potassium also reacts readily with all acids and with many nonmetals, such as sulfur, fluorine, chlorine, phosphorus, and nitrogen.
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It is a compound of aluminum, silica, and fluorine.
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Try substituting fluorine for hydrogen in some compounds and the consequences can be dramatic.
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Fewer loosely bonded fluorine atoms in the seasoning film results in fewer contaminants being incorporated into films deposited over substrates in subsequent processing steps.
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The tetrafluoride is then fed into a fluidized bed reactor with gaseous fluorine to produce UF6.
Uranium enrichment
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The ozone depleting compounds contain combinations of the elements chlorine, fluorine, bromine, carbon and hydrogen.
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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Currently, the most common radioisotope used in PET imaging is Fluorine-18, used to create the tracer for glucose, F-18 fluorodeoxyglucose, commonly known as FDG.
Presseportal
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Fluorine, chlorine, and bromine are all more chemically reactive than iodine; when in the body, they all tend to disrupt stable iodine molecules, displacing the iodine and causing its excretion.
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This fraction of hydrogen recombines with fluorine and thus decreases the Faradaic current efficiency of the electrolyser.
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The fluorine content in cleaned coal will be nearly same as its original matrix by two grade defluorination treatment.
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The photons in the tanks of hydrogen and fluorine lased and the beam flashed through the air above the Sichuan province.
Neurosurgical Intervention For Beginners
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Both types of polymer contain strong C-F bonds and are thermally stable, chemically inert and ‘non-stick’, because of the low affinity of fluorine for other materials.
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Using a kind of fluorine polymer and HDI trimer to reinforce and conserve the paper documents was studied.
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Fluorine was the most difficult halogen to isolate because it is so chemically reactive.
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Their temperature ranges between 27°C and 51°C and they vary in radioactivity and fluorine content.
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A hydrogen bond is a dipole dipole interaction that occurs between any molecule with a bond between a hydrogen atom and any of oxygen / fluorine / nitrogen.
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Fortunately, few people are likely to encounter elementary fluorine in their daily lives.
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The oxidation number of the halogens other than fluorine is - 1, unless they are bonded to oxygen or a more electronegative halogen.
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Doping with elements such as fluorine or antimony enhances its electrical conductivity and in turn its infrared reflectance.
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Thus, sulfur compounds derived from Halothane were found to be useful new synthons for organofluorine compounds.
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The water is clear, colourless, palatable, odourless, mildly mineralised, and contains hydro carbonates of sodium and small quantities of fluorine.
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Potassium also reacts readily with all acids and with many nonmetals, such as sulfur, fluorine, chlorine, phosphorus, and nitrogen.
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As its position in the periodic table would suggest, it is less active than the three halogens above - fluorine, chlorine, and bromine.
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Organohalogens are organic compounds that contain one or more halogen atoms (fluorine, chlorine, bromine or iodine).
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On the macroscale, adding fluorine atoms to carbon-based materials makes for water-repellant, non-stick surfaces.
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The tetrafluoride is then fed into a fluidized bed reactor with gaseous fluorine to produce UF6.
Uranium enrichment
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Neon for UI stuff is simply a reference to neon signs being brightly coloured and attracting the attention of people to tell them stuff, and Fluorine for gatewaying to the outside world because Fluorine has a very electronegative ion that binds aggressively to other atoms.
Snell-Pym » Designing a general data model
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The other halogens are: fluorine, an extremely reactive gas; chlorine, a reactive, heavy gas; iodine, a relatively inactive solid; and astatine.
Bromine
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The substrate is exposed to a conditioning solution of a fluorine source, a non-aqueous solvent, a complementary acid, and a surface passivation agent.
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Workers at the facility were exposed to radiation as well as the chemicals uranium, plutonium and fluorine.
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The halides are a group of minerals whose principle chemical constituents are fluorine, chlorine, iodine, and bromine.
Composition of rocks
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Common oxidants include the halogens (especially fluorine and chlorine), oxygen, ozone, potassium permanganate, potassium dichromate, nitric acid, and concentrated sulfuric acid.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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Fluorine is so reactive that it forms compounds with the noble gases, which were thought to be chemically inert.
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Fluorine can react with noble gases such as krypton and xenon.
CreationWiki - Recent changes [en]
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The elements hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine consist of diatomic molecules.
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Alder, Would yousay it was truethat Fluorine istoo reactive andso it actually does not get used in biological chemical systems really, at all.
Wingnut Murder Spree or Are WE Part of the Problem?
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Dry chlorine, iodine, bromine and fluorine cause little or no corrosion of magnesium at room or slightly elevated temperature.
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And phosphorus and francium and fluorine and terbium,
Qulog 2.0
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For instance, electronegativities in the halide sequence fluorine, chlorine, bromine, and iodine decrease from fluorine through iodine.
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Potassium also reacts readily with all acids and with many nonmetals, such as sulfur, fluorine, chlorine, phosphorus, and nitrogen.
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A similar reaction occurs with bromine but not with iodine or fluorine.
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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This facility has been involved in, among many other things, "an extensive effort to identify practical methods of synthesis for nerve gases (such as tabun, sarin, and VX) and other organophosphorus and fluorine compounds." (
WHAT REALLY HAPPENED
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The inertness of Fluorinert liquid FC-770 permits its use as a direct contact single and two-phase coolant in certain supercomputers and sensitive military electronics.
