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Topic: Scandium

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	Scandium - Wikipedia, the free encyclopedia
		Scandium is a chemical element in the periodic table that has the symbol Sc and atomic number 21.
		A soft, silvery, white transition metal, scandium occurs in rare minerals from Scandinavia and it is sometimes classified along with yttrium and the lanthanides as a rare earth.
		Fischer, Brunger, and Grienelaus prepared metallic scandium for the first time in 1937, by electrolysis of a eutectic melt of potassium, lithium, and scandium chlorides at 700 to 800°C Tungsten wire in a pool of liquid zinc were the electrodes in a graphite crucible.
	en.wikipedia.org /wiki/Scandium (719 words)

	Scandium - Wikipedia
		Scandium is een scheikundig element met symbool Sc en atoomnummer 21.
		Scandium heeft de naam te danken aan de eerst genoemde ontdekker (scandia is de Latijnse naam voor Scandinavië).
		Scandium komt voor in zeldzame mineralen die soms in Scandinavië en Madagaskar gevonden worden, vaak samen met yttrium of lanthaniden.
	nl.wikipedia.org /wiki/Scandium (283 words)

	Scandium - MSN Encarta
		Scandium is one of the transition elements in the periodic table (see Periodic Law).
		Scandium was discovered in 1879 by the Swedish chemist Lars Fredrik Nilson, eight years after the Russian chemist Dmitry Ivanovich Mendeleyev had predicted, on the basis of the periodic law, that the element exists in nature and that its properties resemble those of the element boron.
		Scandium is sometimes regarded as one of the rare earth elements.
	encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761553813 (162 words)

	Scandium - Simple English Wikipedia
		Scandium is chemical element 21 on the periodic table.
		Scandium is a metal in a group known as the transition metals.
		Scandium is not very dangerous because there isn't much of it on Earth, so there is not enough of it to harm us.
	simple.wikipedia.org /wiki/Scandium (147 words)

	Scandium - Wikipedia
		Reines Scandium wurde erstmals 1937 elektrolytisch aus einer eutektischen Schmelze aus Kalium-, Lithium- und Scandiumchlorid bei 700 bis 800 °C hergestellt.
		Scandium reagiert mit verdünnten Säuren unter Bildung von Wasserstoff und dreiwertigen Kationen.
		Scandium wird auch zur Herstellung von Laserkristallen verwendet.
	de.wikipedia.org /wiki/Scandium (403 words)

	Scandium (Site not responding. Last check: 2007-11-02)
		A soft, silvery, white transition element, scandium occurs in rare minerals from Scandinavia and it is sometimes classified along with yttrium andthe lanthanides as a rareearth.
		Scandium is a rare, soft, silvery, trivalent, very light metallic element thatdevelops a slightly yellowish or pinkish cast when exposed to air.
		In 1937 metallic scandium was prepared for the first time by electrolysis of a eutectic melt of potassium, lithium, and scandium chlorides at 700 to800° C.
	www.therfcc.org /scandium-72875.html (645 words)

	scandium (Site not responding. Last check: 2007-11-02)
		Metallic scandium was first prepared in 1937 by Fischer, Brunger, and Grieneisen, who electrolyzed a eutectic melt of potassium, lithium, and scandium chlorides at 700 to 800 deg C. Tungsten wire and a pool of molten zinc served as the electrodes in a graphite crucible.
		Scandium is a silver-white metal which develops a slightly yellowish or pinkish cast upon exposure to air.
		Scandium is not attacked by a 1:1 mixture of conc.
	www.speclab.com /elements/scandium.htm (388 words)

	scandium
		Scandium is found in relatively greater abundance in the sun and certain stars than on earth.
		Scandium sulfate in very dilute aqueous solution is used in agriculture as a seed treatment to improve the germination of corn, peas, wheat, and other plants.
		Scandium was discovered by L. Nilson in 1879 by spectroscopic analysis of euxenite and gadolinite.
	www.factmonster.com /encyclopedia/scandium (266 words)

	Scandium (Site not responding. Last check: 2007-11-02)
		Scandium is a rare soft silvery trivalent light metallic element that develops a slightly yellowish pinkish cast when exposed to air.
		Scandium (Latin Scandia meaning "Scandinavia") was discovered by Lars Fredrick Nilson in 1879 while he and his team were for rare earth metals.
		In 1937 metallic scandium was prepared for the time by electrolysis of a eutectic melt of potassium lithium and scandium chlorides at 700 to C.
	www.freeglossary.com /Scandium (607 words)

	It's Elemental - The Element Scandium
		Metallic scandium was first produced in 1937 and the first pound (0.45 kilograms) of pure scandium was produced in 1960.
		Scandium is a soft, light metal that might have applications in the aerospace industry.
		Alloys of scandium and aluminum are used in some kinds of athletic equipment, such as aluminum baseball bats, bicycle frames and lacrosse sticks.
	education.jlab.org /itselemental/ele021.html (204 words)

	Scandium (Site not responding. Last check: 2007-11-02)
		Metallic scandium was first prepared in 1937 by Fischer, Brunger, and Grienelaus who electrolyzed a eutectic melt of potassium, lithium, and scandium shlorides at 700 to 800C.
		Scandium is a silver-white metal which develops a slightly yellowish or pinkist cast upon exposure to air.
		Scandium is not attacked by a 1:1 mixture of HNO3 and 48% HF.
	www.scescape.net /~woods/elements/scandium.html (372 words)

	Scandium
		Scandium metal is produced by the reduction of scandium fluoride with calcium metal.
		Scandium is bluish-white in colour, but may develop a yellowish to pinkish hue upon exposure to air
		Scandium iodide is added to mercury vapour lamps for high efficiency lights used in night time colour television transmission.
	www.azom.com /details.asp?ArticleID=1452 (261 words)

	Mineral Information Institute - SCANDIUM
		Scandium is a soft, silvery-white metallic element with an atomic number 21.
		Scandium has some characteristics that are similar to the rare earth elements, and is often classified as a member of the group.
		Scandium is also used in the manufacture of crystals for laser research and aerospace applications (Russia).
	www.mii.org /Minerals/photoscandium.html (569 words)

	ELEMENT: SCANDIUM
		Scandium is apparently much more abundant (the 23rd most) in the sun and certain stars than on earth (the 50th most abundant).
		Scandium is not attacked by a 1:1 mixture of HNO
		Scandium iodide added to mercury vapor lamps produces a highly efficient light source resembling sunlight, which is important for indoor or night-time color TV.
	www.radiochemistry.org /periodictable/elements/21.html (426 words)

	C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - SCANDIUM
		This is the main reason for the dispersal of scandium in the lithosphere and is explained by the valency of scandium (Sc) and similarities in ionic radii.
		Investigations of the use of scandium in aluminum alloys began in the Soviet Union in the 1970s, although such alloys were patented in the U.S. in 1971.
		Some of the advantages of using scandium in aluminum alloys are to achieve grain refinement during casting and welding, increased strength from Al Sc precipitates, increased resistance to recrystallization, and enhanced superplastic properties.
	pubs.acs.org /cen/80th/scandium.html (870 words)

	Scandium - Wikipédia
		En ajoutant de l'iodure de scandium dans une lampe à halogénure métallique, on obtient une source de lumière spectralement comparable au soleil (température de couleur de 4000°K - « blanc neutre ») qui est utilisé comme source lumineuse pour la vidéo de nuit ou en intérieur.
		Scandium (latin ;: scandia→scandinavie) a été découvert par Lars Fredrick Nilson en 1879 lorsque lui et son équipe recherchaient des terres rares.
		Le Scandium est actuellement principalement un sous-produit de la purification de l'uranium.
	fr.wikipedia.org /wiki/Scandium (707 words)

	Scandium (Sc) - Chemical properties, Health and Environmental effects
		Scandium is one of the rare chemicals, that can be found in houses in equipment such as colour televisions, fluorescent lamps, energy-saving lamps and glasses.
		Scandium is only the 50th most abundant element on hearth, it is distributed widely, occurring in trace quantities in over 800 minerals.
		Scandium is mostly dangerous in the working environment, due to the fact that damps and gasses can be inhaled with air.
	www.lenntech.com /Periodic-chart-elements/Sc-en.htm (483 words)

	Tech Center
		The Scandium tube is 1-1/4" in diameter as it attaches to the head tube, and shortly thereafter it narrows (necks down) to 1-1/8".
		Easton claims the Scandium alloy is a much higher-grade aluminum that allows them to use thinner tubes and thinner diameters while achieving characteristics similar to frames built with fatter tubes.
		I think a Scandium bike has its value for triathletes because in a long ride glued to the saddle in the aero position, a bike with a bit more compliance is a needful thing.
	www.slowtwitch.com /mainheadings/techctr/scandium.html (1030 words)

	Scandium
		Scandium legeringen en aluminium legeringen worden gebruikt in sommige soorten sportapparatuur, zoals aluminium honkbalknuppels en fietsframes.
		Scandium is een van de weinige chemicaliën die gevonden kan worden in huishoudelijke apparaten zoals kleurentelevisies, fluorescerende lampen, spaarlampen en glas.
		Scandium is het gevaarlijkst in de werkomgeving, vanwege de dampen en gassen die ingeademd kunnen worden.
	www.lenntech.com /elementen-periodiek-systeem/Sc.htm (385 words)

	salsacycles2006 (Site not responding. Last check: 2007-11-02)
		Scandium is number 21 on the periodic table of elements.
		With Scandium tubing, frame engineers are able to use smaller diameter tubes, thinner cross sections, and shaped tubes to tune the ride characteristics of each frame while using less material.
		Raw Scandium is not as abundant as many other alloying elements and is difficult to extract from raw ore. Production of Scandium alloys is relatively new and is being done on a much smaller scale than other aluminum alloys.
	www.salsacycles.com /scandium.html (375 words)

	Elément du tableau de Mendeleev
		Scandium was één van de elementen die gevonden werden in de 'aarde' yttria.
		Scandium is een bijzonder licht metaal en heeft een zeer hoog smeltpunt (hoger dan dat van aluminium).
		Deze eigenschappen maken het uitermate geschikt voor toepassingen in lucht- en ruimtevaart, zowel in omstandigheden waar met zeer lichte constructies gewerkt moet worden, als in situaties waarbij het materiaal aan extreem hoge temperaturen wordt blootgesteld.
	www.periodieksysteem.com /elem_nl.cfm?IDE=Sc (562 words)

	Sc - Scandium
		Scandium is apparently much more abundant (the 23rd most) in the sun and certain starsthan on earth (the 50th most abundant).
		Most scandium is presently being recovered from thortveitite or is extracted as aby-product from uranium mill tailings.
		Tungsten wire and a pool of molten zinc served as the electrodes in a graphitecrucible.
	www.physlink.com /Reference/ChemicalElements/scandium.cfm (251 words)

	scandium - HighBeam Encyclopedia
		SCANDIUM [scandium], metallic chemical element; symbol Sc; at.
		It is a member of Group 3 of the periodic table ; because of its chemical and physical properties, its scarcity, and the difficulty in extracting the metal, it is sometimes regarded as one of the rare-earth metals.
		Scandium Golf Shafts Launched at PGA Show in Competition with Steel and Graphite.
	www.encyclopedia.com /html/s1/scandium.asp (340 words)

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