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Europium

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Calcium Fluoride activated by Europium
Europium 2-Ethylhexanoate
Europium Acetate
Europium Acetate Solution
Europium Acetylacetonate
Europium Arsenide
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Europium Fluoride EuF3
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Europium Hydride EuH2
Europium Hydride EuH3
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Europium-151 Oxide Isotope
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Ultra Thin Europium Foil
Europium Perchlorate Solution
Europium Phosphate Hydrate
Europium Trifluoroacetate Trihydrate
Europium Trifluoromethanesulfonate
Europium Tris[3-(trifluoromethylhydroxymethylene)-(+)-camphorate]
Tris(benzoylacetonato) mono(phenanthroline)europium
Tris[N,N-bis(trimethylsilyl)amide] europium(III)
Tris(dibenzoylmethane) mono(1,10-phenanthroline)europium
Tris(tetramethylcyclopentadienyl) europium(III)
Yttrium Europium Oxide Nanoparticles
Europium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below.

Europium Bohr ModelEuropium is utilized primarily for its unique luminescent behavior. Europium 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. Excitation of the Europium atom by absorption of ultra violet radiation can result in specific energy level transitions within the atom creating an emission of visible radiation.In energy efficient fluorescent lighting, Europium provides not only the necessary red, but also the blue. Several commercial blue phosphors are based on Europium. Its luminesence is also valuable in medical, surgical and biochemical applications.

  Hydrogen                                 Helium
  Lithium Beryllium                     Boron Carbon Nitrogen Oxygen Fluorine Neon
  Sodium Magnesium                     Aluminum Silicon Phosphorus Sulfur Chlorine Argon
  Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Hydrogen Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
  Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
  Cesium Barium Cerium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon
  Francium Radium Actinium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Ununquadium Ununpentium Ununhexium Ununseptium Ununoctium
                                     
      Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium    
      Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawerencium    


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Europium facts, including appearance, CAS #, and molecular formula and safety data, research and properties are available for many specific states, forms and shapes on the product pages listed to the left. Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Nanoparticles and nanopowders provide ultra high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.

High Purity (99.999%) Europium Oxide (Eu2O3) PowderOxides are available in forms including powders and dense pellets for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Europium is available in soluble forms including chlorides, nitrates and acetates. These compounds are also manufactured as solutions at specified stoichiometries.

All elemental metals, compounds and solutions may be synthesized in ultra high purity (e.g. 99.999%) for laboratory standards, advanced electronic, thin fillm deposition using sputtering targets High Purity (99.999%) Europium (Eu) Sputtering Targetand evaporation materials, metallurgy and optical materials and other high technology applications. Information is provided for stable (non-radioactive) isotopes. Organo-Metallic Europium compounds are soluble in organic or non-aqueous solvents. See Analytical Services for information on available certified chemical and physical analysis techniques including MS-ICP, X-Ray Diffraction, PSD and Surface Area (BET) analysis.

Europium was first discovered by E.A. Demarçay (Paris) in 1901 . Europium is found in many minerals including bastnasite, monazite, xenotime and loparite. It is not found in nature as a free element. Europium was named after the continent of Europe. The number of electrons in each of Europium's shells is 2, 8, 18, 25, 8, 2 and its electronic configuration is [Xe]4f7 6s2. The europium atom has a radius of 199.5.pm and it's Van der Waals radius is unknown. Europium is moderately toxic.

French europium German Europium Italian europio Portuguese Európio Spanish europio Swedish Europium


Europium Abundance. The following table shows the abundance of Europium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.

Isotope Atomic Mass % Abundance on Earth
Eu-153 152.921 52.19
Eu-151 150.919 47.81


The following table shows the abundance of Europium present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
  Typical Human Body Universe
by Weight no data 0.5 ppb
by Atom no data 0.004 ppb


Europium Safety Data and Biological Role. The safety data for Europium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Europium compounds have no biological role.

Ionization Energy. The ionization energy for Europium (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
1st Ionization Energy 546.7 kJ mol-1
2nd Ionization Energy 1085 kJ mol-1
3rd Ionization Energy 2405 kJ mol-1


Conductivity. As to Europium's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ºC is 90  10-8 µOcm. There is no data regarding Europium's electronegativities (its ability to draw electrons relative to other elements) . The thermal conductivity of Europium is 13.9 W m-1 K-1.

Thermal Properties of Europium . The melting point and boiling point for Europium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
Heat of Fusion 9.21 kJ mol-1
Heat of Vaporization 175.73 kJ mol-1
Heat of Atomization 178 kJ mol-1

Recent Research & Development for Europium

  • Sensitization of Lanthanoid Luminescence by Organic and Inorganic Ligands in Lanthanoid-Organic-Polyoxometalates. Ritchie C, Baslon V, Moore EG, Reber C, Boskovic C. Inorg Chem. 2011 Dec 23. [Epub ahead of print] PMID: 22220495 [PubMed - as supplied by publisher]

  • Di-µ-benzoato-?O,O':O';?O:O,O'-bis[aqua-bis-(benzoato-?O,O')(dimethylformamide-?O)europium(III)]. Wang Z, Zhou X. Acta Crystallogr Sect E Struct Rep Online. 2011 Nov 1;67(Pt 11):m1579-80. Epub 2011 Oct 22. PMID: 22219814 [PubMed - in process]

  • Silver Nanoparticle-Enhanced Chemiluminescence Method for Determining Naproxen Based on Europium(III)-Sensitized Ce(IV)-Na(2)S (2)O (4) Reaction. Kamruzzaman M, Alam AM, Kim KM, Lee SH, Kim YH, Kim SH. J Fluoresc. 2012 Jan 4. [Epub ahead of print] PMID: 22215565 [PubMed - as supplied by publisher]

  • Effects of crystallization and dopant concentration on the emission behavior of TiO2:Eu nanophosphors. Pal M, Pal U, Gracia Y Jimenez JM, Perez-Rodriguez F. Nanoscale Res Lett. 2012 Jan 3;7(1):1. [Epub ahead of print] PMID: 22214494 [PubMed - as supplied by publisher]

  • Influence of Catalyses on the Preparation of YVO(4):Eu (3+) Phosphors by the Sol-gel Methodology. Saltarelli M, Luz PP, Matos MG, de Faria EH, Ciuffi KJ, Calefi PS, Rocha LA, Nassar EJ. J Fluoresc. 2011 Dec 30. [Epub ahead of print] PMID: 22205247 [PubMed - as supplied by publisher]

  • Selected Trace Elements in the Sacramento River, California: Occurrence and Distribution. Taylor HE, Antweiler RC, Roth DA, Alpers CN, Dileanis P. Arch Environ Contam Toxicol. 2011 Dec 23. [Epub ahead of print] PMID: 22193863 [PubMed - as supplied by publisher]

  • A Sensitive, Homogeneous, and High-Throughput Assay for Lysine-Specific Histone Demethylases at the H3K4 Site. Wang C, Caron M, Burdick D, Kang Z, Auld D, Hill WA, Padrós J, Zhang JH. Assay Drug Dev Technol. 2011 Dec 22. [Epub ahead of print] PMID: 22192306 [PubMed - as supplied by publisher]

  • Modelling and optimisation of preparative chromatographic purification of europium. Ojala F, Max-Hansen M, Kifle D, Borg N, Nilsson B. J Chromatogr A. 2012 Jan 13;1220:21-5. Epub 2011 Nov 23. PMID: 22189296 [PubMed - in process]

  • Site-specific DOTA/europium-labeling of recombinant human relaxin-3 for receptor-ligand interaction studies. Zhang WJ, Luo X, Liu YL, Shao XX, Wade JD, Bathgate RA, Guo ZY. Amino Acids. 2011 Dec 21. [Epub ahead of print] PMID: 22187146 [PubMed - as supplied by publisher]

  • Building large supramolecular nanocapsules with europium cations. Hamacek J, Poggiali D, Zebret S, Aroussi BE, Schneider MW, Mastalerz M. Chem Commun (Camb). 2011 Dec 19. [Epub ahead of print] PMID: 22179299 [PubMed - as supplied by publisher]

  • Circularly Polarized Lanthanide Luminescence from Langmuir-Blodgett Films Formed from Optically Active and Amphiphilic Eu(III) -Based Self-Assembly Complexes. Kitchen JA, Barry DE, Mercs L, Albrecht M, Peacock RD, Gunnlaugsson T. Angew Chem Int Ed Engl. 2011 Dec 7. doi: 10.1002/anie.201106863. [Epub ahead of print] PMID: 22162422 [PubMed - as supplied by publisher]

  • Enhancement of the Luminescence Efficiency of Europium(III) Tris(ß-diketonato) Complex in Organic Media by Quaternary Ammonium Salts with Anionic Ligands. Katano H, Uematsu K, Tsukatani T. Anal Sci. 2011;27(12):1249. PMID: 22156255 [PubMed - in process]

  • High-pressure phase transition and thermoelastic properties of europium chalcogenides. Gupta DC, Singh KC. J Mol Model. 2011 Nov 26. [Epub ahead of print] PMID: 22146983 [PubMed - as supplied by publisher]

  • Spectrofluorimetric study of the interaction between europium(III) and moxifloxacin in micellar solution and its analytical application. Kamruzzaman M, Alam AM, Lee SH, Ragupathy D, Kim YH, Park SR, Kim SH. Spectrochim Acta A Mol Biomol Spectrosc. 2012 Feb;86:375-80. Epub 2011 Oct 29. PMID: 22133700 [PubMed - in process]

  • Complexation of Europium(III) by Bis(dialkyltriazinyl)bipyridines in 1-Octanol. Steppert M, Císarová I, Fanghänel T, Geist A, Lindqvist-Reis P, Panak P, Stepnicka P, Trumm S, Walther C. Inorg Chem. 2012 Jan 2;51(1):591-600. Epub 2011 Dec 1. PMID: 22133151 [PubMed - in process]

  • Photoluminescent Properties of Novel Rare Earth Organic-Inorganic Nanocomposite with TiO(2) Modified Silica via Double Crosslinking Units. Zhao Y, Yan B. Photochem Photobiol. 2012 Jan;88(1):21-31. doi: 10.1111/j.1751-1097.2011.01033.x. Epub 2011 Nov 29. PMID: 22126262 [PubMed - in process]

  • Nonradiative deactivation of europium(iii) luminescence as a detection scheme for moisture. Knall AC, Tscherner M, Noormofidi N, Pein A, Saf R, Mereiter K, Ribitsch V, Stelzer F, Slugovc C. Analyst. 2011 Nov 28. [Epub ahead of print] PMID: 22125794 [PubMed - as supplied by publisher]

  • Probing the metal ion selectivity in methionine aminopeptidase via changes in the luminescence properties of the enzyme bound europium ion. Sule N, Singh RK, Zhao P, Srivastava DK. J Inorg Biochem. 2012 Jan;106(1):84-9. Epub 2011 Sep 22. PMID: 22112844 [PubMed - in process]

  • Characteristics of functionalized nano-hydroxyapatite and internalization by human epithelial cell. Yan-Zhong Z, Yan-Yan H, Jun Z, Shai-Hong Z, Zhi-You L, Ke-Chao Z. Nanoscale Res Lett. 2011 Nov 23;6:600. PMID: 22108000 [PubMed - in process]

  • The oxidation state of europium in halide glasses. Weber JK, Vu M, Passlick C, Schweizer S, Brown DE, Johnson CE, Johnson JA. J Phys Condens Matter. 2011 Dec 14;23(49):495402. Epub 2011 Nov 18. PMID: 22101252 [PubMed - in process]




Formula Atomic Number Molecular Weight Electronegativity (Pauling) Density Melting Point Boiling Point Vanderwaals radius Ionic radius Energy of first ionization
Eu 63 167.26 g.mol -1 1.2 9.2 g.cm-3 at 20 °C 1522 °C 2510 °C unknown unknown 587.6 kJ.mol-1

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