EUROPIUM

yoorōˈpēəm [from Europe], metallic chemical element; symbol Eu; at. no. 63; at. wt. 151.96; m.p. about 820 degrees Celsius; b.p. about 1,600 degrees Celsius; sp. gr. 5.25 at 25 degrees Celsius; valence +2 or +3. Europium is a ductile silvery-white metal; it is both rare and expensive. It is a member of group IIIb of the periodic table. Its oxides are found in minerals with the other rare earths. Europium has been identified in the sun and some stars by spectroscopy. Its physical properties are like those of the other members of the lanthanide series, but many of its chemical properties are more like those of calcium. The most reactive of the rare-earth metals, it tarnishes quickly in air at room temperature and ignites and burns above 150 degrees Celsius. It reacts readily with water. Twenty-one isotopes of europium are known, most of them unstable. Since it is a good neutron absorber, europium metal is used in nuclear reactor control rods. Europium oxide, a pinkish powder, is used to activate red phosphors in the manufacture of color television picture tubes. The discovery of europium is credited to Eugène Demarcay, who isolated fairly pure europium oxide in 1901.

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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: Europium
We found: 79 results
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books on: Europium  - 54 results

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1.
The History and Use of Our Earth's Chemical Elements: A Reference Guide
Book by Robert E.Krebs; Greenwood Press, 1998
...samarium liberates hydrogen, which may explode. * * * EUROPIUM Rare-Earth Elements SYMBOL: Eu ATOMIC NUMBER...ISOTOPES: Two stable, naturally occurring isotopes of europium are europium-151 and europium-153. PROPERTIES: Europium...
2.
Elements: A Very Short Introduction
Book by Philip Ball; Oxford University Press, 2004
...named generously after all of Europe: europium. This element is in fact one of the...Earth's crust contains twice as much europium as tin. It is harvested today largely...emission of very pure red and blue light. Europium, like all other rare earth elements...
3.
Radioecology: Proceedings of the First National Symposium on Radioecology Held at Colorado State University, Fort Collins, Colorado, September 10-15, 1961
Book by Vincent Schultz, Alfred W. Klement Jr.; Reinhold Pub. Corp., 1963
Subjects: Radioecology--Congresses
...although Ru106-Rh106, cerium-144, and europium-155 are also detectable Cole et al...strontium-90, cerium-144, and probably europium- 155. The corals contain cobalt-60...ruthenium-106, cerium-144, and probably europium-155. Of several species of algae sampled...
4.
Radioisotopes in Biology and Agriculture: Principles and Practice
Book by C. L. Comar; McGraw-Hill, 1955
Subjects: Radioisotopes In Agriculture, Radioisotopes In Biology
Europium 152 13 yr Beta 0.9, 1.7 Gamma 0.3, 1.2 K Europium 154 16 yr Beta 0.3, 0.7, 1.9 Gamma 1.2 Cat...22 c 6 O 10- 9 3 O 10- 2 820 days Intake Levels. Europium, one of the rare-earth elements, has not been of...
5.
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
...Lower Carboniferous Etroeungtian Eu Chem. s. Europium Eudialyt m, eudialyte Eugenglanz m, polybasite...eurasiatisch Eurasiatic Eurasien n, Eurasia tic landmass Europium Eu n, Chem. europium euryhaline Organismen m/pl, euryhaline organisms...
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journal articles on: Europium  - 8 results

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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
...or - 19.6 283 (166-1742) <br/ Europium 4.56 + or - 0.09 1.21 (1.72...5 264 (143.6-1,899) <br/ Europium 4.64 + or - 0.1 1.14 (1.74...3 406 (156.3- 2,126) <br/ Europium 4.40 + or - 0.1 1.09 (1.13...
2.
Rare Earth Element Geochemistry of Upper Ordovician Cherts from the Southern Uplands of Scotland
Journal article by A. W. Owen, H. A. Armstrong, J. D. Floyd; Journal of the Geological Society, Vol. 156, 1999
Subjects: Chemical elements, Geology, Scotland
...the literature of potential variation in cerium and possibly europium anomalies as a function of oceanic redox conditions (Wilde...elemental distribution pattern similar to that of AOW32 and AOW34. Europium and cerium anomalies In addition to the diagrams showing the...
3.
Associations between Prenatal Exposure to Polychlorinated Biphenyls and Neonatal Thyroid-Stimulating Hormone Levels in a Mexican-American Population, Salinas Valley, California
Journal article by Jonathan Chevrier, Brenda Eskenazi, Asa Bradman, Laura Fenster, Bar Dan B.; Environmental Health Perspectives, Vol. 115, 2007
Subjects: Neonatology--Research, Polychlorinated biphenyls--Health aspects, Prenatal influences--Evaluation, Thyroid hormones--Research
...phase, time-resolved sandwich fluoroimmunoassay (AutoDELFIA; PerkinElmer, Wellesley, MA) using a lanthanide metal europium (Eu) label. These data were abstracted from medical records. On average, blood spot samples were collected 25 hr after...
4.
Middle Woodland Ceramic Exchange in the Lower Illinois Valley
Journal article by Shannon M. Fie; Midcontinental Journal of Archaeology, MCJA, Vol. 33, 2008
...distinguishable. For example, the mean concentrations (Table 3) of several rare-earth elements-antimony, dysprosium, europium, lutetium, and samarium-are lowest in the southernmost samples (Macoupin) and generally increase in assemblages to the...
5.
Rare Earth Geochemistry of Arenig Cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, Southern Scotland: Implications for Origin and Significance to the Caledonian Orogeny
Journal article by H. A. Armstrong, A. W. Owen, J. D. Floyd; Journal of the Geological Society, Vol. 156, 1999
Subjects: Chemical elements, Geology, Scotland
...signatures seem to be robust despite considerable discussion in the literature of potential variation in cerium and possibly europium anomalies as a function of oceanic redox conditions (Wilde et al 1996; Holser 1997). The degree of LREE v. HREE enrichment...
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magazine articles on: Europium  - 8 results

       More magazine Results: 1-8 >>  
 
1.
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
...Then there is the Rare Earth element europium, which generates the primary colour...introduction of plasma TV was a new blue europium phosphor that retains brightness ten...double 2002s price of US$1.87/kg. Europium--which cannot be substituted--sits...
2.
Moonstruck
Magazine article by G. Jeffrey Taylor; Natural History, Vol. 112, September 2003
Subjects: Astronomical research, Moon
...highland anorthosites. For example, the mare basalts were depleted in aluminum and europium, whereas the anorthosites were loaded with aluminum and enriched in europium. Those findings suggested that the magma in the deep interior regions of the...
3.
Beware: Gap in the Road Ahead: As the Chinese Government's Control of Its Domestic Minerals Market Tightens-Coupled with Environmental and Production Issues-There Are Fears That Demand for Rare Earths Will Outstrip Supply
Magazine article by Andre Khoury; Business Asia, Vol. 16, April 2008
Subjects: China--Energy policy, Export duties--Laws, regulations and rules, Tungsten industry--International trade, Tungsten industry--Taxation
...as computer monitors. Phosphors that generate the colour red require the Rare Earth element europium, for which there is no alternative--no europium, no colour TV. Magnets, which use the Rare Earth neodymium, are much more powerful than...
4.
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
...science-fiction movie: neodymium, promethium, dysprosium and europium. And the comparison isnt actually all that far fetched, for...used in computer monitors and flat-screen televisions employ europium. Lanthanum is key to modifying glass-crystal structure and...
5.
Hidden Evidence: Latent Prints on Human Skin
Magazine article by Ivan Ross Futrell; FBI Law Enforcement Bulletin, Vol. 65, April 1996
Subjects: Fingerprinting, Law enforcement, Skin
...powders, specially formulated powders, regular and fluorescent magnetic powders, liquid iodine, RAM, ardrox, and thenoyl europium chelate. Most of these methods developed the latent prints up to approximately 1 hour after the prints had been deposited...
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newspaper articles on: Europium  - 3 results

 
 
1.
Boro Boffins' Quest for a Perfect Bond; an Elemental Chain Reaction to Make Us Fans
Newspaper article; Evening Gazette (Middlesbrough, England), October 25, 2011
...the historically rare and very expensive to extract elements Europium (Eu) and Glorium (Gm) and the universally present Gazettium...contradictory stand-off a sudden reaction with a catalyst like Europium (Eu) or Liquidatium (Lq) can change the chemistry. But...
2.
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
...elements in the periodic 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...
3.
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
...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 on before a night out, then. Other...


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encyclopedia articles on: Europium  - 6 results

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1.
Europium
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
EUROPIUM yooro pe m from Europe , metallic chemical...degrees Celsius; valence +2 or +3. Europium is a ductile silvery-white metal; it...minerals with the other rare earths . Europium has been identified in the sun and some...
2.
Periodic Table of the Elements: Europium
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PERIODIC TABLE OF THE ELEMENTS: EUROPIUM Periodic Table of the Elements: Europium Atomic Number: 63 Atomic Symbol: Eu Europium Atomic Weight: 151.96 Electron Configuration: 2 8 18 25 8 2 ____________________ Copyright...
3.
Eu , Chemical Symbol
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
EU , chemical symbol symbol for the element europium . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
4.
Superconductivity
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...superconductivity after high purification. More than 50 elements are superconductive at temperatures near absolute; some, such as europium, only under extreme pressure as well. Alloys (e.g., two parts of gold to one part of bismuth) and such compounds as...
5.
Lanthanide Series
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...through 71, which are (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...
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