63 151.960
Eu
Europium

Europium , Eu

Europium is a chemical element with the symbol Eu and atomic number 63. It was named after the continent Europe.

Europium is the most reactive of the rare earth elements; it rapidly oxidizes in air, and resembles calcium in its reaction with water; deliveries of the metal element in solid form, even when coated with a protective layer of mineral oil, are rarely shiny. Europium ignites in air at about 150 °C to 180 °C. It is about as hard as lead and quite ductile.

 

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E2-5004-M

EuF3 3-6mm Pieces (melted) 99.9% pure

Europium Fluoride

E2-5005-M

Eu2O3 3-12mm Pieces (sintered) 99.99% pure

Europium oxide

E2-5007-M

Eu2O3 1-6mm Pieces 99.99% Pure

Europium Oxide

E2-5008-M

Eu 3-6mm Pieces TREM 99.9% Eu/TREM 99.99%

Vacuum packed in Oil

Europium

E2-10004-P

EuCl3-xH2O -4 Mesh 99.9% Pure

Europium Chloride

E2-10005-P

EuCl3 -20 Mesh 99.9% Pure

Europium Chloride

E2-10006-P

EuF2 -200 Mesh (precipitated) 99.9% pure

Europium Fluoride

E2-10007-P

EuF3 -60 Mesh (melted) 99.9% Pure

Europium Fluoride

E2-10008-P

EuF3 -325 Mesh (precipitated) 99.9% pure

Europium Fluoride

E2-10011-P

EuS -200 Mesh 99.9% Pure

Europium Sulphide

4.1 UN3178 PGIII Flammable

E2-10012-P

Eu2O3 -325 Mesh (typ.=5 microns) 99.9% pure

Europium Oxide

E2-10013-P

EuSe -100 Mesh 99.9% Pure

Europium Selenide

E2-10014-P

EuS-200 Mesh Powder 99.9% Pure

Europium Sulphide

E2-10015-P

EuTe -20 Mesh 99.9% Pure

Europium Telluride

6.1 UN3288 PG III Toxic

E2-10016-P

Eu2O3 D50: <15 microns TREM 99% Eu2O3/TREM 99.99% Pure

Europium Oxide

E2-10017-P

EuS 50-60 microns 99.9% Pure

Europium Sulphide

E2-2000-R

Eu Rod 6.35mm dia. 99.9% pure

Europium

E2-2000-R1

Eu Rod 6.35mm dia. x 50.8mm length 99.99% Pure

Europium

E2-2000-R2

Eu Rod 6.0mm dia. x 10mm long 99.9% Pure

Europium

E2-2000-R3

Eu Rod 6mm dia. x 20mm Tk TREM 99.9% Eu/TREM 99.99% Pure

Europium

E2-2001-R

Eu Rod 12.7mm dia. 99.9% pure

Europium

E2-9000-D

Europium Eu, TREM 99.9% Eu/TREM 99.99% Pure

E2-9001-D

Europium oxide Eu2O3, TREO 99.5% Eu2O3/TREO 99.99% Pure

E2-9001-Dx

Europium oxide Eu2O3, TREO 99.9% Eu2O3/TREO 99.99% Pure

E2-9002-D

Europium Nitride NdN, 99% Pure

E2-9003-D

Europium boride EuB6, 99.5% Pure

E2-9001-D1

Eu2O3 TRG 76.2mm dia. x 3mm Tk 99.99% Pure 

Europium Oxide

E2-9001-D3

Eu2O3 TRG 50.8mm dia. x 6.35mm Tk TREO 99.5% Eu2O3/TREO 99.99% Pure

Europium oxide

E2-9001-D4

Eu2O3 TRG 50.8mm dia. x 3.18mm Tk Eu2O3 99.9% Eu2O3/TREO 99.99% Pure

Europium oxide

E2-9002-D1

EuN 25 TRG 4mm dia. x 3.18mm Tk 99% Pure

Europium Nitride

Europium is the most reactive of the rare earth elements; it rapidly oxidizes in air, and resembles calcium in its reaction with water; deliveries of the metal element in solid form, even when coated with a protective layer of mineral oil, are rarely shiny. Europium ignites in air at about 150 °C to 180 °C. It is about as hard as lead and quite ductile.

Symbol Eu
Atomic number 63
No. of naturally occurring isotopes 2
Atomic weight 151.96
Outer electron configuration 4f76s2
Metal radius( 6-coordinatc)/pm 208.4
Ionic radius(6-coordinatc)/pm 111 94.7
Ionic radius(6-coordinatc)/pm 11 117
Electrical resistivity (25 °C)/μohm cm 81
Density (25°C)/gcm 5.245
Melting point /°C 826
Boiling point /°C -1439
ΔHvap/kJmol-1 176
ΔHmonoatomic gas/kJmol-1 178
ΔH(hydration Ln3+)/kJmol-1 3547
Ionization cnergy/kJmol-1 I 547
Ionization cnergy/kJmol-1 II 1085
Ionization cnergy/kJmol-1 III 2425
Temperature (oC) @Vap. Pressure
10-8 Torr 280 Sublimes
10-6 Torr 360 Sublimes
10-4 Torr 480 Sublimes
Techniques
Electron Beam Fair
Crucible Al2O3
Coil -
Boat Tungsten & Tantalum
Remarks
Low tantalum solubility.