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Europium Produkt Beschreibung

EUROPIUM Struktur
7440-53-1
CAS-Nr.
7440-53-1
Bezeichnung:
Europium
Englisch Name:
EUROPIUM
Synonyma:
Eu;EUROPIUM;EU000200;EU005110;EU006010;Europium rod;Europium foil;europium atom;EUROPIUM METAL;Europium ingot
CBNumber:
CB5726440
Summenformel:
Eu
Molgewicht:
151.96
MOL-Datei:
7440-53-1.mol

Europium Eigenschaften

Schmelzpunkt:
822 °C (lit.)
Siedepunkt:
1527 °C (lit.)
Dichte
5.24 g/mL at 25 °C (lit.)
Aggregatzustand
ingot
Farbe
Silver/gray
Wichte
5.24
Widerstand (resistivity)
81 μΩ-cm, 20°C
Wasserlöslichkeit
Reacts with water.
Sensitive 
Air & Moisture Sensitive
Merck 
13,3937
CAS Datenbank
7440-53-1(CAS DataBase Reference)
EPA chemische Informationen
Europium (7440-53-1)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher F,C
R-Sätze: 14/15-17-34
S-Sätze: 43-7/8-45-36/37/39-27-26-23
RIDADR  UN 2813 4.3/PG 2
WGK Germany  3
1-10
TSCA  Yes
HazardClass  4.1
PackingGroup  II
HS Code  28053090
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H250 Entzündet sich in Berührung mit Luft von selbst. Pyrophoric liquids; Pyrorophoric solids Category 1 Achtung P210, P222, P280, P302+P334,P370+P378, P422
H261 In Berührung mit Wasser entstehen entzündbare Gase. Stoffe und Gemische, die in Berührung mit Wasser entzündbare Gase entwickeln (Kapitel 2.12), Kategorie 2 (Water-react. 2), H261 Stoffe und Gemische, die in Berührung mit Wasser entzündbare Gase entwickeln (Kapitel 2.12), Kategorie 2 Achtung
Warnung
P231+P232, P280, P370+P378,P402+P404, P501
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P222 Kontakt mit Luft nicht zulassen.
P223 Keinen Kontakt mit Wasser zulassen.
P231 Unter inertem Gas handhaben.
P231+P232 Unter inertem Gas handhaben. Vor Feuchtigkeit schützen.
P422 Inhalt in/unter inertem Gas aufbewahren.

Europium Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R14/15:Reagiert heftig mit Wasser unter Bildung hochentzündlicher Gase.
R17:Selbstentzündlich an der Luft. Spontaneously flammable in air.
R34:Verursacht Verätzungen.

S-Sätze Betriebsanweisung:

S43:Zum Löschen . . . (vom Hersteller anzugeben) verwenden (wenn Wasser die Gefahr erhöht, anfügen: "Kein Wasser verwenden").
S7/8:Behälter trocken und dicht geschlossen halten.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).

Chemische Eigenschaften

grey ingots

Physikalische Eigenschaften

Europium is one of the most rare of the rare-earths. Its abundance on Earth is only 1.1ppm. It is a soft, shiny, steel-gray metal that is quite ductile and malleable, which means it canbe worked and formed into many shapes. It looks like and feels like the element lead (Pb), butis somewhat heavier. It is the most chemically active of all the rare-earths.
Europium’s melting point is 822°C, its boiling point is 1,529°C, and its density is 5.243g/cm3.

Isotopes

There are a total of 45 isotopes of europium. Two are considered stable andaccount for 100% of the europium found on Earth: Eu-151 (47.81%) and Eu-153(52.19%). All the other 53 isotopes are radioactive and artificially produced, primarily through electron capture.

Origin of Name

Named for the continent of Europe.

Occurrence

Europium is the 13th most abundant of all the rare-earths and the 55th most abundantelement on Earth. More europium exists on Earth than all the gold and silver deposits. Likemany other rare-earths, europium is found in deposits of monazite, bastnasite, cerite, andallanite ores located in the river sands of India and Brazil and in the beach sand of Florida.It has proven difficult to separate europium from other rare-earths. Today, the ion-exchange process is used to extract europium from the other rare-earths found in monazite sand(ore).

Charakteristisch

Pure europium will slowly oxidize in air at room temperature and will produce hydrogenwhen placed in water. It will ignite spontaneously if the air temperature is over 150°C. Insome ways europium resembles the elements calcium, strontium, and barium found in group2 of the periodic table.

History

In 1890 Boisbaudran obtained basic fractions from samarium-gadolinium concentrates that had spark spectral lines not accounted for by samarium or gadolinium. These lines subsequently have been shown to belong to europium. The discovery of Europium is generally credited to Demarcay, who separated the rare earth in reasonably pure form in 1901. The pure metal was not isolated until recent years. Europium is now prepared by mixing Eu2O3 with a 10% excess of lanthanum metal and heating the mixture in a tantalum crucible under high vacuum. The element is collected as a silvery-white metallic deposit on the walls of the crucible. As with other rare-earth metals, except for lanthanum, europium ignites in air at about 150 to 180°C. Europium is about as hard as lead and is quite ductile. It is the most reactive of the rare-earth metals, quickly oxidizing in air. It resembles calcium in its reaction with water. Bastnasite and monazite are the principal ores containing europium. Europium has been identified spectroscopically in the sun and certain stars. Europium isotopes are good neutron absorbers and are being studied for use in nuclear control applications. Europium oxide is now widely used as a phosphor activator and europium-activated yttrium vanadate is in commercial use as the red phosphor in color TV tubes. Europiumdoped plastic has been used as a laser material. With the development of ion-exchange techniques and special processes, the cost of the metal has been greatly reduced in recent years. Natural europium contains two stable isotopes. Thirty-five other radioactive isotopes and isomers are known. Europium is one of the rarest and most costly of the rare-earth metals. It is priced at about $60/g (99.9% pure).

Verwenden

Neutron absorber in nuclear control, color-TV phosphors to activate yttrium, phosphors in postagestamp glues to permit electronic recognition of firstclass mail.

Verwenden

There are only a few commercial uses for europium. Europium oxide, (Eu2O3), a compoundof europium, is added to infra-sensitive phosphors to enhance the red colors on TVand computer-monitor picture tubes. It is also added to fluorescent light tubes to increasetheir efficiency, as well as to some materials to make lasers. Since it is a good neutron absorber,it is part of nuclear reactor control rods. Europium is an additive to the glue used on postagestamps, thus making it possible for the electronic sorting machines in U.S. postal offices to“read” the stamps.

Definition

Atomic number 63, one of the lanthanide or rare-earth elements of the cerium subgroup, aw 151.96, valences of 2, 3; two stable isotopes.

Definition

A silvery element of the lanthanoid series of metals. It occurs in association with other lanthanoids. Its main use is in a mixture of europium and yttrium oxides widely employed as the red phosphor in television screens. The metal is used in some superconducting alloys. Symbol: Eu; m.p. 822°C; b.p. 1597°C; r.d. 5.23 (25°C); p.n. 63; r.a.m. 151.965.

Definition

europium: Symbol Eu. A soft silverymetallic element belonging to thelanthanoids; a.n. 63; r.a.m. 151.96;r.d. 5.245 (20°C); m.p. 822°C; b.p.1597°C. It occurs in small quantitiesin bastanite and monazite. Two stableisotopes occur naturally: europium–151 and europium–153, bothof which are neutron absorbers. Experimentaleuropium alloys havebeen tried for nuclear-reactor partsbut until recently the metal has notbeen available in sufficient quantities.It is widely used in the form ofthe oxide in phosphors for televisionscreens. It was discovered by SirWilliam Crookes in 1889.

Hazard

Highly reactive, may ignite spontaneously in powder form.

Hazard

Europium is very reactive and, in powder form, may burst into flames spontaneously atroom temperature. Most of the salts of europium are toxic when inhaled or ingested.

Europium Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Europium Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 89)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Binshare New Material Co. Ltd
+8618633865755 +86-86-18633865755
china01@hbbinshare.com CHINA 987 58
Guangzhou Sunton Biotechnology Co., Ltd.
18501706408 18575736215
18575736215 sunton01@sunton88.com CHINA 1355 58
ShenZhen Ipure Biology import and export company co.,ltd
18071025641 18071025641
eric@ipurechemical.com CHINA 11336 58
Shaanxi Dideu Medichem Co. Ltd
18192503167 +86-29-89586680
+86-29-88380327 1005@dideu.com CHINA 9938 58
Zhuoer Chemical Co., Ltd
+86-13524231522
+86-21-58816016 sales@zhuoerchem.com CHINA 3014 58
Hong Kong Tiansheng New Material Trading Co., Ltd
+8617320695765
17320695765 zxx@hktiansheng.com China 1047 58
Alfa Chemistry
+1-516-662-5404
1-516-927-0118 inquiry@alfa-chemistry.com United States 10563 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32439 55

7440-53-1(Europium)Verwandte Suche:


  • EUROPIUM INGOT, 3N (REO)
  • Europium, Chips 10mm & Down
  • Europium, Powder 250 Micron
  • Europium, plasma standard solution, Specpure(R), Eu 1000μg/ml
  • Europium foil, 1.0mm (0.04in) thick, 99.9% (REO)
  • Europium foil, 0.1mm (0.004in) thick, 99.9% (REO)
  • Europium, plasma standard solution, Specpure(R), Eu 10,000μg/ml
  • Europium, AAS standard solution, Specpure(R), Eu 1000μg/ml
  • Europium pieces, sublimed dendritic, 99.9% (REO)
  • Eu
  • Europiumsublimedpcs.min.99.9%,packedinHDPE-bottlesunderoil
  • Europium, ingot, 99.90%
  • EUROPIUM SINGLE ELEMENT STANDARD
  • EUROPIUM STANDARD
  • EUROPIUM METAL
  • EUROPIUM PLASMA EMISSION SPECTROSCOPY STANDARD
  • EUROPIUM PLASMA EMISSION STANDARD
  • EUROPIUM, PLASMA STANDARD SOLUTION
  • EUROPIUM ICP/DCP STANDARD
  • EUROPIUM ICP STANDARD
  • EUROPIUM
  • Europiumfoil,0.25mm(0.01in)thick,99.9%(REO)
  • Europiumlump,sublimeddendritic,REacton,99.99%(REO)
  • Europiumpowder,<250micron,REacton,99.9%(REO)
  • EUROPIUM, 99.90%, INGOT
  • Europium,99.9%,ingot
  • Europium sputtering target, 50.8mm dia x 1.59mm thick
  • Europium sputtering target, 50.8mm dia x 3.18mm thick
  • Europium sputtering target, 76.2mm dia x 1.59mm thick
  • Europium sputtering target, 76.2mm dia x 3.18mm thick
  • Europium Powder
  • Europium Pieces
  • Europium chips in mineral oil
  • Europium ingot (99.9% REO)under oil
  • EUROPIUM, AAS STANDARD SOLUTION
  • EUROPIUM ATOMIC ABSORPTION STANDARD
  • Europium atomic absorption standard solution
  • Europium ingot
  • EuropiumingotNREOpackedinmineraloil
  • EUROPIUM, CHIP, 99.9%
  • EUROPIUM, INGOT, 99.9%
  • EUROPIUM, DISTILLED, 99.9%
  • EUROPIUM FOIL, 99.9% (REO)
  • EUROPIUM INGOT, 99.99%(REO)
  • EUROPIUM PLATE, 99.9% (REO)
  • EUROPIUM OTHER FORM, 99.9% (REO)
  • EUROPIUM SPUTTERING TARGET, 99.9% (REO)
  • EUROPIUM ROD, 99.9% (REO)
  • EUROPIUM INGOT (99.9% REO)
  • EUROPIUM INGOT, 99.999%(REO)
  • Europiumdiscs99,9%,25,4mmdia.x1mmthick,
  • EuropiuM, 99.9%, (trace Metal basis), ingot
  • Europium, Chips 10mm & Down 99.9%
  • Europium, Powder 420 micron 99.9%
  • EU000200
  • EU005110
  • EU006010
  • Europium foil
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