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CAS No 7440-53-1 , europium

  • Name: europium
  • Synonyms: europio; AC1L2N4L; ACMC-1BJ8V; EU; 110123-53-0; Europium atomic absorption standard solution;europium; 63Eu;7440-53-1;
  • CAS Registry Number:
  • Transport: UN 2813 4.3/PG 2
  • Boiling Point: 1527 °C(lit.)
  • Density: 5.24 g/mL at 25 °C(lit.)
  • Safety Statements: 43-7/8-45-36/37/39-27-26-23
  • Hazard Symbols: Xi:Irritant;
  • EINECS: 231-161-7
  • Molecular Weight: 151.964
  • InchiKey: OGPBJKLSAFTDLK-UHFFFAOYSA-N
  • InChI: InChI=1S/Eu
  • Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: Eu
  • Molecular Structure:CAS No:7440-53-1 europium
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7440-53-1 EUROPIUM INGOT

  • EUROPIUM INGOT, 99.999%(REO)
  • United States INTERNATIONAL LABORATORY LIMITED [Manufacturer]
  • Tel: ( 650 ) 278-9963
  • Fax: ( 650 ) 589-2786
  • Address: 1067 SNEATH LN SAN BRUNO CA 94066, USA SAN BRUNOUNITED STATES SAN BRUNO,United States
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7440-53-1 Europium ingot

  • Europium ingot, (99.9%REO)
  • United States Strem Chemicals, Inc. [Manufacturer]
  • Tel: (978) 499-1600/ (800) 647-8736
  • Fax: (978) 465-3104
  • Address: 7 Mulliken Way
    Newburyport, MA 01950-4098 ,United States
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7440-53-1 Europium

  • United States GFS Chemicals, Inc. [Manufacturer]
  • Tel: 800-858-9682/ 740-881-5501
  • Fax: 740-881-5989
  • Address: GFS Chemicals, Inc.
    P.O. Box 245
    Powell, OH 43065 ,United States
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7440-53-1 E-1021 EUROPIUM METAL

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7440-53-1 Europium, Metal

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7440-53-1 (0499) EUROPIUM

  • Germany Fox Chemicals GmbH [Manufacturer]
  • Tel: +49.7240.927151/ +49.160.95781845 (Mobile)
  • Fax: +49.7240.927150
  • Address: Fox Chemicals GmbH
    Bockstalstr.10 A
    D-76327 Pfinztal-Germany ,Germany
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7440-53-1 Europium

  • Europium
  • Germany Fox Chemicals [Manufacturer]
  • Tel: +49-7240-927151
  • Fax: +49-7240-927150
  • Address: Bockstalstr. 10A76327 Pfinztal-Kst.GERMANY Pfinztal-Kst.,Germany
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7440-53-1 EUROPIUM, CHIPS, 10 MM & DOWN

  • United States ProChem, Inc. [Manufacturer]
  • Tel: 800-795-8788
  • Address: ProChem, Inc.
    826 Roosevelt Rd.
    Rockford IL 61109 ,United States
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7440-53-1 Europium, Metal

  • China Beijing Cerametek Materials Co. Ltd. [Manufacturer]
  • Tel: +86-10-6156.6641
  • Fax: +86-10-6156.1674
  • Address: Beijing Cerametek Materials Co. Ltd.
    2-E051, BPE, W. NongLin Rd.,
    FangShan, Beijing, 102400,
    China ,China
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7440-53-1 EUROPIUM METAL

  • United States Noah Technologies Corp. [Manufacturer]
  • Tel: 210-691-2000
  • Fax: 210-691-2600
  • Address: 1 Noah Park
    San Antonio, TX 78249-3419 ,United States
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References of europium
Title: Europium
CAS Registry Number: 7440-53-1
Literature References: Eu; at. wt 151.964; at. no. 63; valences 2, 3. A lanthanide; belongs to cerium group of rare earth metals. Naturally occurring isotopes (mass numbers): 151 (47.8%); 153 (52.2%); known artificial radioactive isotopes: 138-150; 152; 154-160. Abundance in earth's crust: 1.06-2.1 ppm. Commercially important sources are the rare earth minerals monazite and bastnaesite; also found in gadolinite. Has been detected spectroscopically in the sun and in certain stars. Discovered and prepd as the oxide: Demar?ay, Compt. Rend. 122, 728 (1896); 130, 1019, 1469 (1900); 132, 1484 (1901). Separation: Spedding et al., J. Am. Chem. Soc. 76, 2557 (1954); by paper chromatography: Lederer, Nature 176, 462 (1953). Toxicity study: Haley, J. Pharm. Sci. 54, 663 (1965). Reviews of prepn, properties and compds: The Rare Earths, F. H. Spedding, A. H. Daane, Eds. (Krieger, Huntington, N.Y., 1971, reprint of 1961 ed.) 641 pp; S. P. Sinha, Europium (Springer, New York, 1967) 164 pp; Hulet, Bode, "Separation Chemistry of the Lanthanides and Transplutonium Actinides" in MTP Int. Rev. Sci.: Inorg. Chem., Ser. One vol. 7, K. W. Bagnall, Ed. (University Park Press, Baltimore, 1972) pp 1-45; Moeller, "The Lanthanides" in Comprehensive Inorganic Chemistry vol. 4, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 1-101; F. H. Spedding in Kirk-Othmer Encyclopedia of Chemical Technology vol. 19 (John Wiley & Sons, New York, 3rd ed., 1982) pp 833-854; Chemistry of the Elements, N. N. Greenwood, A. Earnshaw, Eds. (Pergamon Press, New York, 1984) pp 1423-1449. Brief review of properties: G. T. Seaborg, Radiochim. Acta 61, 115-122 (1993).
Properties: Body-centered cubic crystal lattice; d 5.244; mp 826°. bp 1429°. Heat of fusion: 9.221 kJ/mol. Heat of sublimation (25°): 144.7 kJ/mol. Sol in liq ammonia. Shows two reduction potentials -0.710 and -2.510 v. (referred to a normal calomel electrode): Noddack, Brukl, Angew. Chem. 50, 362 (1937); gives two definite series of salts, in one the metal is divalent, and in the other it is trivalent.
Melting point: mp 826°
Boiling point: bp 1429°
Density: d 5.244
 
Derivative Type: Sesquioxide
Synonyms: Europia
Molecular Formula: Eu2O3
Molecular Weight: 351.93
Percent Composition: Eu 86.36%, O 13.64%
Properties: Pink powder, d 7.42, prepd by heating the hydroxide, nitrate, oxalate or sulfate at 1600°. The oxide of the divalent metal is prepd by reduction of the sesquioxide at elevated temp.
Density: d 7.42
 
Derivative Type: Hydroxide
Molecular Formula: Eu(OH)3
Molecular Weight: 202.99
Percent Composition: Eu 74.86%, O 23.65%, H 1.49%
Properties: Prepd by adding ammonia or an alkali hydroxide to a soln of an europic salt.
 
Derivative Type: Europic chloride
Molecular Formula: EuCl3
Molecular Weight: 258.32
Percent Composition: Eu 58.83%, Cl 41.17%
Properties: Greenish-yellow needles; mp 623° in nitrogen (in a closed tube), d35 4.471, prepd by passing sulfur chloride over the heated oxide at 200-500°. LD50 of trichloride in mice: 550 mg/kg i.p.; 5 g/kg orally (Haley).
Melting point: mp 623° in nitrogen (in a closed tube)
Density: d35 4.471
Toxicity data: LD50 of trichloride in mice: 550 mg/kg i.p.; 5 g/kg orally (Haley)
 
Derivative Type: Europous chloride
Molecular Formula: EuCl2
Molecular Weight: 222.87
Percent Composition: Eu 68.19%, Cl 31.81%
Properties: Prepd by reduction of EuCl3 with hydrogen at 600°. White amorphous powder, sol in water.
 
Derivative Type: Europic sulfate
Molecular Formula: Eu2(SO4)3
Molecular Weight: 592.12
Percent Composition: Eu 51.33%, S 16.25%, O 32.42%
Properties: Octahydrate, a pinkish cryst solid, prepd by dissolving the oxide in sulfuric acid. Soly in water: 2.56 parts per 100 parts at 20°, 1.93 parts per 100 parts at 40°. On heating at 375° yields the anhydr sulfate.
 
Derivative Type: Europic nitrate
Molecular Formula: Eu(NO3)3
Molecular Weight: 337.98
Percent Composition: Eu 44.96%, N 12.43%, O 42.60%
Properties: Hexahydrate, mp 85° in its water of crystallization (sealed tube). LD50 in rats (mg/kg): 210 i.p.; >5000 orally (Haley).
Melting point: mp 85° in its water of crystallization (sealed tube)
Toxicity data: LD50 in rats (mg/kg): 210 i.p.; >5000 orally (Haley)
 
Derivative Type: Europous sulfate
Molecular Formula: EuSO4
Molecular Weight: 248.03
Percent Composition: Eu 61.27%, S 12.93%, O 25.80%
Properties: Colorless crystals. Insol in water and in dil acids. Prepd by electrolytic reduction of europic salts.
 
Use: The salts in cathode ray tube coatings for color television receivers. Eu has a very high cross-section for the capture of thermal neutrons which is of value in the construction of electric atomic power stations. Organic derivs as shift reagents in NMR spectroscopy: C. C. Hinckley, J. Am. Chem. Soc. 91, 5160 (1969); R. E. Sievers, Nuclear Magnetic Resonance Shift Reagents (Academic Press, New York, 1973).