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Topic: Terbium


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In the News (Mon 20 May 13)

  
  Chemistry : Periodic Table : terbium : key information
This sample is from The Elements Collection, an attractive and safely packaged collection of the 92 naturally occurring elements that is available for sale.
It is a rare earth metal found in cerite, gadolinite and monazite.
Terbium metal is available commercially so it is not normally necessary to make it in the laboratory, which is just as well as it is difficult to isolate as the pure metal.
www.webelements.com /webelements/elements/text/Tb/key.html   (370 words)

  
  terbium
Terbium is a member of the lanthanide or "rare earth" group of elements.
Sodium terbium borate is used as a laser material and emits coherent light at 0.546 um.
Terbium is used to dope calcium fluoride, calcium tungstate, and strontium molybdate, used in solid-state devices.
www.speclab.com /elements/terbium.htm   (256 words)

  
  Terbium Summary
Terbium is one of the rarest of the Lanthanides.
Terbium is a chemical element in the periodic table that has the symbol Tb and atomic number 65.
Terbium is also used in alloys and in the production of electronic devices, its oxide is used in green phosphors in fluorescent lamps and color TV tubes.
www.bookrags.com /Terbium   (2086 words)

  
 Terbium (Tb)   (Site not responding. Last check: )
Terbium is a silver-gray, malleable, ductile, metallic element that is soft enough to be cut with a knife.
Terbium was discovered in 1843 by a Swedish chemist, Carl Gustav Mosander.
Terbium oxide is used as an activator for green phosphors used in color television tubes.
www.bayerus.com /msms/fun/pages/periodic/terbium/index.html   (128 words)

  
 Terbium - LoveToKnow 1911
TERBIUM [[[symbol]] Tb, atomic weight 159.2 (0=16)], a metallic chemical element belonging to the rare earth group; it was originally called erbia by its discoverer Mosander (see Rare Earth).
Pure terbium compounds were obtained by G. Urbain (Comet.
The oxide is a fl or brown powder according as it is prepared from the exalate or sulphate, and when pure it is non-fluorescent, but mixed with gadolinia or alumina it possesses this property.
www.1911encyclopedia.org /Terbium   (115 words)

  
 Terbium   (Site not responding. Last check: )
Terbium is a rare-earth metal occurring in low concentration in monazite sand, which is a mixture of phosphate of calcium, thorium, cerium, and most of the other rare-earths.
Terbium is extremely reactive when exposed to air or oxygen and must be kept in an inert atmosphere.
Terbium is used in special lasers and as a dopant in solid-state devices.
nobel.scas.bcit.ca /resource/ptable/tb.htm   (108 words)

  
 terbium. The Columbia Encyclopedia, Sixth Edition. 2001-05
It is one of the rare-earth metals of the lanthanide series in group IIIb of the periodic table.
Its oxide, terbia, Tb, is white; its peroxide, Tb, is dark brown to fl.
Terbium is found in gadolinite, cerite, and other rare-earth minerals and is recovered from euxenite, monazite, and zenotime.
www.bartleby.com /65/te/terbium.html   (216 words)

  
 terbium — Infoplease.com
Most of the salts are colorless or white and all contain trivalent terbium.
The element and its compounds have limited commercial importance; some minor uses are in lasers, semiconductor devices, and phosphors for color television picture tubes.
Terbium is found in gadolinite, cerite, and other rare-earth minerals and is recovered from euxenite, monazite, and zenotime.
www.infoplease.com /encyclopedia/terbium   (158 words)

  
 Terbium
Terbium is a member of the lanthanide or "rare earth" group of elements.
Terbium has been isolated only in recent years with the development of ion-exchange techniques for separating the rare-earth elements.
As with other rare earth metals, it can be produced by reducing the anhydrous chloride or fluoride with calcium metal in a tantalum crucible.
www.vias.org /genchem/persys_tb.html   (235 words)

  
 CRCPress Periodic Table Online: Cadmium
Terbium has been isolated only in recent years with the development of ion-exchange techniques for separating the rare earth elements.
As with other rare earths, it can be produced by reducing the anhydrous chloride or fluoride with calcium metal in a tantalum crucible.
Sodium terbium borate is used as a laser material and emits coherent light at 0.546 ยตm.
www.chemnetbase.com /periodic_table/elements/terbium.htm   (240 words)

  
 Terbium   (Site not responding. Last check: )
Terbium is named for the village of Ytterby in Sweden and was discovered in 1843.
Terbium is found along with the other rare-earth minerals principally in monazite and bastnasite.
Terbium is widely used as a phosphor activator in color tv tubes.
www.muhlenberg.edu /depts/chemistry/pertable/terbinfo.htm   (89 words)

  
 Facts about Terbium
Terbium classified as an element in the Lanthanide series as one of the "Rare Earth Elements" which can located in Group 3 elements of the Periodic Table and in the 6th and 7th periods.
Terbium was discovered by Carl Gustaf Mosander in Sweden in 1843.
Find out more facts about Terbium on the Periodic Table which arranges every chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column.
www.facts-about.org.uk /science-element-terbium.htm   (438 words)

  
 X-ray image intensifier tube and x-ray conversion screen containing terbium activated silicate luminescent glasses - ...
A preferred cerium oxide and europium oxide range is 0.1 to 1 percent and a preferred terbium oxide range is 0.75 to 7 percent.
It should be noted that the phosphorescence is reduced in any terbium activated silicate luminescent glass with terbium oxide (Tb.sub.2 O.sub.3) levels ranging from about 0.75 weight percent to about 10 weight percent and higher when the proper amounts of cerium oxide or europium oxide are incorporated into the glass.
In other embodiments of the invention, terbium oxide is present in an mount of about 6 to 12 percent, cerium and europium oxide are present in an amount of about 0.1 to 1.0 percent and gadolinium oxide is present in an amount of about 1 to 10 percent.
www.freepatentsonline.com /5120970.html   (3783 words)

  
 American Elements: Terbium Metal Supplier & Tech Info
Terbium metal is generally immediately available in most volumes.
Terbium is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions.
Spectrofluorimetric determination of trace amounts of coenzyme A using a terbium ion-ciprofloxacin complex probe in the presence of periodic acid.
www.americanelements.com /tbm.html   (705 words)

  
 Goodfellow - Terbium   (Site not responding. Last check: )
Terbium was discovered in 1843 by C.G. Mosander in Stockholm and was named after the Swedish town of Ytterby.
Terbium has an abundance of 1.1 ppm in the earth's crust and is found in minerals in combination with other lanthanide group elements.
Terbium is used in the semiconductor industry as a dopant.
www.goodfellow.com /static/E/TB00.html   (131 words)

  
 American Elements: Terbium Supplier & Technical Information
Terbium is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions, such as the yttrium-aluminum-garnet (Tb:YAG) variety.
Terbium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder.
Terbium is available in soluble forms including chlorides, nitrates and acetates.
www.americanelements.com /tb.html   (479 words)

  
 TERBIUM in West Virginia Coals   (Site not responding. Last check: )
Terbium is one of the rare earth elements (REE) present in West Virginia coals with little environmental impact.
Terbium did not statistically correlate with ash yield, total sulfur or pyritic sulfur but correlated well with other REE such as europium (Eu), samarium (Sm), ytterbium (Yb), lutetium (Lu), scandium (Sc), cerium (Ce), thorium (Th), lanthanum (La) and lead (Pb).
Terbium was generally low (<0.5 ppm) in most West Virginia coals with slightly higher Tb in coals of the Pocahontas and lower New River Formations and low Tb in Conemaugh and Monongahela Group coals, especially the Pittsburgh, Redstone and Sewickley.
www.wvgs.wvnet.edu /www/datastat/te/TbHome.htm   (260 words)

  
 Terbium (Tb) - Chemical properties, Health and Environmental effects
Terbium is a soft, malleable, ductile, silver-gray metal member of the lanthanide group of the periodic table.
Terbium is one of the rarer rare-earth elements, although is twice as common in the Earth's crust as silver.
Terbium powder and compound are very irritating if they come into contact with the skin and the eyes.
www.lenntech.com /Periodic-chart-elements/Tb-en.htm   (238 words)

  
 It's Elemental - The Element Terbium
Terbium is used to dope some types of solid-state devices and, along with zirconium dioxide (ZrO
Terbia, the renamed material that Mosander discovered in 1843, is terbium oxide (Tb), one of terbium's compounds.
Sodium terbium borate, another terbium compound, is used to make laser light.
education.jlab.org /itselemental/ele065.html   (229 words)

  
 Terbium - Products - HEFA Rare Earth Canada Ltd.
Terbium, atomic no. 65, symbol Tb, weight at 158.93, is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions, such as the yttrium-aluminum-garnet (Tb:YAG) variety.
Terbium responds efficiently to x-ray excitation and is, therefore, used as an x-ray phosphor.
Terbium alloys are also used in magneto-optic recording films, such as TbFeCo.
www.baotou-rareearth.com /tb.html   (117 words)

  
 65 Terbium
Terbium is one of four, yes four, elements named after the same small village in Sweden: Terbium, Ytterbium, Yttrium, and Erbium.
This sample arrived with a full set of lanthanides at a time when I was missing europium, terbium, holmium, ytterbium, and of course lutetium.
Of course the SoundBug is mounted against the inside face of the terbium cube, so the sound appears to be coming from the general area of terbium.
www.theodoregray.com /PeriodicTable/Elements/065/index.s7.html   (864 words)

  
 Terbium   (Site not responding. Last check: )
Terbium was discovered by the Swedish chemistGustav Mosander in 1843.
Terbium is found in nature in a number of different minerals.
Sodium terbium borate is used as a laser material.
www.chem.shef.ac.uk /chm131-2002/cha02nis/65.html   (122 words)

  
 terbium - HighBeam Encyclopedia
terbium [from Ytterby, a village in Sweden], metallic chemical element; symbol Tb; at.
It is one of the rare-earth metals of the lanthanide series in Group 3 of the periodic table.
Copyright 2006 Columbia University Press For permission to reuse this article, contact Copyright Clearance Center.
www.encyclopedia.com /doc/1E1-terbium.html   (440 words)

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