TERBIUM

tûrˈbēəm [from Ytterby, a village in Sweden], metallic chemical element; symbol Tb; at. no. 65; at. wt. 158.9254; m.p. 1,356 degrees Celsius; b.p. 3,123 degrees Celsius; sp. gr. about 8.25; valence +3 or +4. Terbium is a soft, malleable, ductile, silver-gray metal. It is one of the rare-earth metals of the lanthanide series in group IIIb of the periodic table. It does not tarnish rapidly in air. Its oxide, terbia, Tb2O3, is white; its peroxide, Tb4O7, is dark brown to black. 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. It is difficult to separate it from the other rare-earth metals; several methods are used. The pure metal may be produced by chemical reduction of the halide with calcium. The element was discovered in 1843 by C. G. Mosander as its oxide, which he called erbia. The element has been known as terbium since 1877.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Terbium
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books on: Terbium  - 43 results

       More book Results: 1-10 11-20 21-30 31-40 41-43 >>  
 
1.
The History and Use of Our Earth's Chemical Elements: A Reference Guide
Book by Robert E.Krebs; Greenwood Press, 1998
...ingest particles of gadolinium. * * * TERBIUM Rare-Earth Elements SYMBOL: Tb ATOMIC...COMMON ISOTOPES: No stable isotopes. Terbium-159 makes up 100% of the natural element. PROPERTIES: Terbium is a very reactive, silver-gray metallic...
2.
Science & Technology Almanac
Book by Lynn Lauerman; Greenwood Press, 2002
Subjects: Science--Periodicals, Technology--Periodicals
...this element results in breath that smells like garlic. Terbium Tb 65 158.9254 8.23 1356 3230 9 Mosander; 1843 The green light on computer screens and televisions comes from terbium compounds. Thallium Tl 81 204.383 11.85 303.5 1457...
3.
Geology and Allied Sciences: A Thesaurus and a Coordination of English and German Specific and General Terms
Book by Walther Huebner; Veritas Press, 1939
Subjects: English Language--Dictionaries--German, Geology--Dictionaries, German Language--Dictionaries--English
...tentacle Tenuilobatenzone f, Malm DeltaGamma Tenuilobatus zone Tephrit m, tephrite Tephroit m, tephroite Terbium Tb n, Chem. terbium Terebratelbanke f/pl, Muschelkalk Terebratula beds Terebratuliden f/pl, terebratulids Terlinguait m...
4.
Encyclopaedic Dictionary of Physics: General, Nuclear, Solid State, Molecular, Chemical, Metal and Vacuum Physics, Astronomy, Geophysics, Biophysics, and Related Subjects - Vol. 2
Book by J. Thewlis, R. C. Glass, D. J. Hughes, A. R. Meetham; Pergamon Press, 1962
Subjects: Physics--Dictionaries
...Cobalt 161 162 5 1 71 1403 -- Gadolinium 253 6 7 12 7 0 289 -- Terbium 0 322 4 9 25 9 0 about 218 230 Dysprosium * 0 350 10 2 10 0...moments of the 4 f electrons do contribute. For gadolinium and terbium and dysprosium the moments per ion at T = 0 are very close...
5.
Mendeleyev, the Story of a Great Scientist
Book by Daniel Q. Posin; Whittlesey House, 1948
Subjects: Mendeleyev, Dmitry Ivanovich--1834-1907
...Eu 64 Gd 65 Tb 66 Dy 67 Ho 68 Er 69 Tm 70 Yb 71 Lu 6 Rare Earths Cerium Praseodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutecium 6 140.13 140.92 144.27 147 150.43 152.0 156.9 159.2 162...
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journal articles on: Terbium  - 4 results

 
 
1.
Spatial and Temporal Variation in [PM.Sub.2.5
Journal article by Michelle L. Bell, Francesca Dominici, Keita Ebisu, Scott L. Zeger, Jonathan M. Samet; Vol. 115, 2007
Subjects: Carbon--Research, Environmental health--Research, Particles--Health aspects, Particles--Research, Particulate matter--Health aspects, Particulate matter--Research
...19 3.26 (2.43-14.8) <br/ Terbium 3.85 + or - 0.11 0.64 (1.48...22 3.87 (2.85-18.4) <br/ Terbium 3.93 + or - 0.13 0.86 (1.37...19 2.54 (1.73-15.3) <br/ Terbium 3.72 + or - 0.11 0.78 (1.36...
2.
Resuscitating the Rare Earths
Journal article by Peter Gwynne; Research Technology Management, Vol. 54, 2011
Subjects: Chemical elements, Chemical industry, Demand, International, Technology adoption
...critical materials strategy group. "Neodymium, dysprosium, terbium, europium, and yttrium are valuable for end use in wind turbines...applies particularly to the heavier rare earths dysprosium, terbium, and yttrium, whose ores are less common, Bauer says. One...
3.
Source Analysis of Central Plains Tradition Pottery Using Neutron Activation Analysis: Feasibility and First Results
Journal article by Donna C. Roper, Robert J. Hoard, Robert J. Speakman, Michael D. Glascock, Anne Cobry Dicosola; Plains Anthropologist, Vol. 52, 2007
Subjects: Chemicals, Clay, Medicine, Raw materials
...hafnium (Hf), nickel (Ni), rubidium (Rb), antimony (Sb), scandium (Sc), strontium (Sr), tantalum (Ta), terbium (Tb), thorium (Th), zinc (Zn), and zirconium (Zr). STATISTICAL ANALYSIS OF THE CHEMICAL DATA The analyses produced...
4.
Blood Mercury Concentrations in CHARGE Study Children with and without Autism
Journal article by Irva Hertz-Picciotto, Peter G. Green, Lora Delwiche, Robin Hansen, Cheryl Walker, Isaac N. Pessah; Environmental Health Perspectives, Vol. 118, 2010
Subjects: Autism--Diagnosis, Autism--Research, Autism--Risk factors, Mercury poisoning--Complications and side effects, Mercury poisoning--Research, Mercury--Complications and side effects, Mercury--Health aspects, Mercury--Research
...nitric acid (trace metal grade; Fisher Scientific, Pittsburgh, PA), 0.05% Triton X-100 (Fisher), and 100 ppb terbium (Spex Certiprep, Methuen, NJ) as an internal standard. Uptake was 0.4 mL/min from a peristaltic pump with 1.2 L...


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magazine articles on: Terbium  - 6 results

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1.
PRC Espionage Leads to 'Terf' War: Investigators Say China Placed Students in American Universities to Gain Secret Information about an Exotic Material with Valuable Industrial and Military Uses
Magazine article by Scott L. Wheeler; Insight on the News, Vol. 18, October 29, 2002
Subjects: Business intelligence, Earths, Rare--Product development, Espionage, Rare earth metals
...up of two types of rare-earth metals called lanthanides, terbium and dysprosium, plus iron (FE). The NOL stands for Naval...example, when heated with iron the lanthanides dysprosium and terbium create magnetostrictive material that the U.S. Navy, which...
2.
From Rare Earths to Riches: China's Stronghold on the Rare Earths Market Is Not Sustainable, and Outsiders Are Starting to Cash In
Magazine article by Lisa Carapiet; Business Asia, Vol. 15, October 2007
Subjects: Rare earth metal compounds--Environmental aspects, Rare earth metal compounds--Growth, Rare earth metals--Growth, Rare earth metals--Usage
...colours needed, green, is doped with the Rare Earth element terbium. These primary colour phosphors together make the white backlight...at US$380/kg, when in 2002 used to be US$230/ kg. Terbium was only US$170/kg in 2002, and now has the hefty price...
3.
Elements of the Future: You May Not Realise It, but the Unique Properties of Elements Known as Rare Earth Metals Are Vital in Green Technology, from Low-Energy Light Bulbs to Hybrid Vehicles. but as Demand for These Metals Threatens to Outstrip Supply and the Race to Find New Resources Hots Up, What Does the Future Hold?
Magazine article by Mark Rowe; Geographical, Vol. 82, July 2010
Subjects: Green technology--International aspects, Green technology--Materials, Hybrid vehicles--Materials, Metal industries--Equipment and supplies, Metal industry--Equipment and supplies, Mineral industry--Capacity, Mineral industry--Environmental aspects, Mineral industry--Supply and demand, Mining industry--Capacity, Mining industry--Environmental aspects, Mining industry--Supply and demand, Rare earth metals--Environmental aspects, Rare earth metals--Magnetic properties, Rare earth metals--Supply and demand, Rare earth metals--Usage
...incorporated into wind turbines. Tiny quantities of dysprosium can make magnets in electric motors lighter by 90 per cent, while terbium--which is soft enough to cut with a knife--is a key component of low-energy light bulbs, which use 80 per cent less...
4.
Trends in Higher Education
Magazine article by Phyllis T.H. Grummon; Planning for Higher Education, Vol. 38, April 2010
Subjects: College attendance--Forecasts and trends, College costs--Management, College enrollment--Forecasts and trends, Education, Higher--Forecasts and trends, Foreign study--Forecasts and trends, Foreign study--Management, Higher education costs--Management, Higher education--Forecasts and trends
...countries. * China is reducing its exports and tightly regulating the product of two rare earth minerals--dysprosium and terbium--that are vital to the manufacturing of hybrid cars, cell phones, large wind turbines, and computer monitors. It produces...
5.
Swedish Giants of Science
Magazine article by Charles Dickson; Scandinavian Review, Vol. 97, Summer 2010
Subjects: Chemistry, Metals, Minerals, Mines, Molybdenum, Science, Spectrum analysis, Students
...For many years he was the curator of the mineral collection in Stockholm and discovered four elements: lanthanum, erbium, terbium and yttrium, the last three deriving their names from the little Swedish town of Ytterby, where the rare-earth minerals...
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newspaper articles on: Terbium  - 5 results

 
 
1.
Inside China's Secret Toxic UNOBTAINIUM MINE; ...Where the World's Rarest Metals Are Torn from the Earth and Then Used to Power All Our New Technologies - from 'Green' Cars to Mobile Phones; EXCLUSIVE
Newspaper article; The Mail on Sunday (London, England), January 10, 2010
Subjects: Cellular telephones--Innovations, Degassing of metals--Innovations, Green technology, Metals (Materials)--Innovations, Metals--Innovations, Rare earth metals--Innovations, Wireless telephones--Innovations
...more than 77 per cent of global demand for elements such as terbium, which power low-energy lightbulbs; neodymium, which powers...amplifier so it is used in fibre-optic cables to boost signals. Terbium generates a change in an electrical circuit when the metal...
2.
Inside China's Inside China's Secret Toxic UNOBTAINIUM MINE; EXCLUSIVE
Newspaper article; The Mail on Sunday (London, England), January 10, 2010
Subjects: Green technology, Rare earth metals
...here feed more than 77pc of global demand for elements such as terbium, which power low-energy lightbulbs; neodymium, which powers...amplifier so it is used in fibre-optic cables to boost signals. Terbium generates a change in an electrical circuit when the metal...
3.
Huge Rare Earth Deposits Found in Pacific: Japan Experts
Newspaper article; Manila Bulletin, July 5, 2011
...dysprosium used in magnets.Kato said the sea mud was especially rich in heavier rare earths such as gadolinium, lutetium, terbium and dysprosium."These are used to manufacture flat-screen TVs, LED (light-emitting diode) valves, and hybrid cars...
4.
There's a New Scarce Resource on the Rise
Newspaper article; The Washington Times (Washington, DC), October 21, 2010
Subjects: McDonald's Corp., Restaurant industry
...table - scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium. Despite the name, rare earth elements are found in relatively...
5.
Culture: Beauty Here Is in the Nose of the Beholder; Give Your Eyes a Break and Sample an Exhibition for the Nose, Suggests David Whetstone
Newspaper article; The Journal (Newcastle, England), April 29, 2008
...maker Geza Schon explains that the sun is "predominantly composed of hydrogen and helium with a molten cocktail of copper, terbium, strontium, antimony and europium in its core". "Brimstone," declared Chris. Not the sort of thing a lady would dab...


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encyclopedia articles on: Terbium  - 6 results

       More encyclopedia Results: 1-6 >>  
 
1.
Terbium
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
TERBIUM tur be m from Ytterby, a village in Sweden...gr. about 8.25; valence +3 or +4. Terbium is a soft, malleable, ductile, silver...colorless or white and all contain trivalent terbium. The element and its compounds have limited...
2.
Periodic Table of the Elements: Terbium
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PERIODIC TABLE OF THE ELEMENTS: TERBIUM Periodic Table of the Elements: Terbium Atomic Number: 65 Atomic Symbol: Tb Terbium Atomic Weight: 158.9254 Electron Configuration: 2 8 18 27 8 2 ____________________ Copyright 2009...
3.
Elements
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...73 180.9479 2996. 5425. 100 technetium Tc 43 (98) 2200. 4877. tellurium Te 52 127.60 449.5 0.3 989.8 3.8 terbium Tb 65 158.9254 1356. 3123. thallium Tl 81 204.383 303.5 1457. 10 thorium Th 90 232.0381 1750. 4790. thulium Tm...
4.
Tb , Chemical Symbol
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
TB , chemical symbol symbol for the element terbium . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
5.
Lanthanide Series
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...in order of increasing atomic number) cerium , praseodymium , neodymium , promethium , samarium , europium , gadolinium , terbium , dysprosium , holmium , erbium , thulium , ytterbium , and lutetium . All of the members of the series very closely resemble...
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