58 140.120
Ce
Cerium

Cerium , Ce

Cerium is a silvery metal, belonging to the lanthanide group. It resembles iron in colour and lustre, but is soft, and both malleable and ductile. Cerium has the longest liquid range of any non-radioactive element: 2648 °C (795 °C to 3443 °C) or 4766 °F (1463 °F to 6229 °F). (Thorium has a longer liquid range.)

 

  • Listed below are a selection of some more commonly used sizes. If you do not see anything that suits your needs, please click on the custom request forms and send us your requirements.
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Form

C4-5001-M

Ce 1-4mm pieces (packed under oil) TREM 99.5% Ce/TREM 99.9% Pure

Cerium

4.3 UN3078 PG II

C4-5002-M

Ce <12mm pieces 99.9% Pure

Cerium

4.3 UN3078 PG II

C4-5004-M

CeF3 3-6mm pieces (melted) 99.9% Pure

Cerium Fluoride

C4-5005-M

CeO2 8-10 dia. x 4-5mm tablets (sintered) 99.9% Pure

Cerium Oxide

C4-5006-M

CeO2 3-6mm pieces (fused) 99.9% Pure

Cerium Oxide

C4-5008-M

CeS <3mm Pieces 99.9% Pure

Cerium Sulphide

C4-5009-M

CeF3-BaF2 90-10wt% 7-10mm Pieces 99.99% Pure

Cerium Fluoride-Barium Fluoride

C4-5011-M

CeF3 3-6mm Pieces 99.99% Pure

Cerium Fluoride

C4-5012-M

CeO2 2-4mm Pieces 99.99% Pure

Cerium Oxide

C4-5013-M

CeO2 1-6mm Pieces 99.99% Pure

Cerium Oxide

C4-5014-M

Ce Pieces 1-6mm Pieces (packed under oil) 99.9% Pure

Cerium

4.3 UN3078 PG II

C4-5015-M

Ce Pieces 3-6mm Pieces (packed under oil) 99.9% Pure

Cerium

4.3 UN3078 PG II

C4-10005-P

CeCl3-xH2O -4 Mesh 99.9% Pure

Cerium Chloride

C4-10006-P

CeCl3 Powder -20 Mesh

Cerium Chloride

C4-10007-P

CeF3 Powder -60 Mesh (melted) 99.9% Pure

Cerium Fluoride

C4-10008-P

CeF3 Powder -325 Mesh (precipitated) 99.9% Pure

Cerium Fluoride

C4-10011-P

CeO2 Powder -150 +325 Mesh (fused) 99.5% Pure

Cerium Oxide

C4-10012-P

CeO2 Powder -325 Mesh (typ. =5 Microns calcined) 99.999% pure

Cerium Oxide

C4-10013-P

CeO2 Powder -325 Mesh (typ. =5 Microns calcined) 99.9% pure

Cerium Oxide

C4-10014-P

CeO2 Powder -325 Mesh +10 Microns (fused) 99.95% Pure

Cerium Oxide

C4-10015-P

CeO2 Powder -325 Mesh Gd203/TREM 99.99% TREO 99% Pure

Cerium Oxide

C4-10016-P

CeO2 Powder -100 Mesh 99.99% Pure

Cerium Oxide

C4-10019-P

Ce2S3 Powder -325 Mesh (typ =10 microns) 99.9% Pure

Cerium Sulphide

C4-10020-P

Ce2Te3 Powder -20 Mesh 99.9% Pure

Cerium Telluride

C4-10025-P

CeO2 Powder 10 Microns 99.99% Pure

Cerium Oxide

C4-10026-P

CeO2 Powder -325 Mesh 99.9% Pure

Cerium Oxide

C4-2001-R1

Ce Rod 12.7mm dia. x 100mm long 99.9% Pure

Cerium

C4-2002-R1

Ce Rod 24mm dia. x 100mm long Ce/TREM 99.9% TREM 99% Pure

Cerium

C4-2002-R2

Ce Rod 50mm dia. x 35mm long 99.9% Pure

Cerium

C4-2002-R3

CeB6 Rod 3mm dia. x 100mm long 99.9% Pure

Cerium Boride

CE-SHT-0.25

Ce Sheet Thickness 0.25mm (0.010") 99.9% pure

Cerium

CE-SHT-0.38

Ce Sheet Thickness 0.38mm (0.015") 99.9% pure

Cerium

CE-SHT-0.5

Ce Sheet Thickness 0.5mm (0.020") 99.9% pure

Cerium

CE-SHT-1

Ce Sheet Thickness 1.0mm (0.040") 99.9% pure

Cerium

C4-9000-D

Cerium Ce, TREM 99.5% Ce/TREM 99.9% Pure

C4-9001-D

Cerium fluoride CeF3, Purity 99.99%

C4-9002-D

Cerium (III) Oxide Ce2O3, 99.99% Pure

C4-9003-D

Cerium oxide CeO2, 99.99% Pure

C4-9004-D

Cerium-Gadolinium Ce-Gd, 99.9% Pure - Available in various ratios wt% or at%

C4-9006-D

Cerium oxide-Gadolinium oxide CeO2-Gd2O3, 99.9% Pure - Available in various ratios wt% or at%

C4-9007-D

Cerium-Lanthanum Ce-La, 99.9% Pure - Available in various ratios wt% or at%

C4-9008-D

Cerium-Zirconium oxide Ce-ZrO2, 99.95%+ Pure - Available in various ratios wt% or at%

C4-9009-D

Cerium oxide doped with Samarium CeO-Sm, 99.99% Pure - Available in various ratios wt% or at%

C4-9001-D1

CeF3 TRG 101.6mm dia. x 6mm Tk 99.99% Pure

Cerium Fluoride

C4-9002-D1

Ce2O3 TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure

Cerium (III) oxide

C4-9003-D13

CeO2 TRG 101.6mm dia. x 0.125" Tk 99.99% Pure

Cerium oxide

C4-9003-D14

CeO2 TRG 101.6mm dia. x 3mm Tk 99.99% Pure

Cerium oxide

C4-9003-D15

CeO2 TRG 50.8mm dia. x 6.35mm Tk 99.95% Pure

Cerium oxide

C4-9003-D16

CeO2 TRG 50.8mm dia. x 3.18mm Tk 99.99% Pure

Cerium oxide

C4-9003-D17

CeO2 TRG 50.8mm dia. x 6.35mm Tk 99.99% Pure

Cerium oxide

C4-9003-D2

CeO2 TRG 76.2mm dia. x 6.35mm Tk 99.99% Pure

Cerium oxide

C4-9003-D22

CeO2 TRG 76.2mm dia. x 3mm Tk 99.9% Pure

Cerium oxide

C4-9003-D23

CeO2 TRG 50.8mm dia. x 3mm Tk 99.95% Pure

Cerium Oxide

C4-9003-D3

CeO2 TRG 76.2mm dia. x 3mm Tk 99.99% Pure

Cerium oxide

C4-9003-D4

CeO2 TRG 25.4mm dia. x 6.35mm Tk 99.9% Pure

Cerium oxide

C4-9003-D7

CeO2 TRG 2" dia. x 0.188" Tk 99.99% Pure

Cerium oxide

C4-9003-D8

CeO2 TRG 101.6mm dia. x 6mm Tk 99.99% Pure

Cerium oxide

C4-9003-D9

CeO2 TRG 25.4mm dia. x 3.18mm Tk 99.99% Pure

Cerium oxide

Although cerium belongs to chemical elements group called rare earth metals, it is in fact more common than lead. Cerium is available in relatively large quantities (68 ppm in Earth’s crust). It is used in some rare-earth alloys.

Among rare earth elements only europium is more reactive. It tarnishes readily in the air. Alkali solutions and dilute and concentrated acids attack the metal rapidly. Cerium oxidizes slowly in cold water and rapidly in hot water. The pure metal can ignite if scratched.

Cerium(IV) (ceric) salts are orange red or yellowish, whereas cerium(III) (cerous) salts are usually white or colorless. Both oxidation states absorb ultraviolet light strongly. Cerium(III) can be used to make glasses that are colorless, yet absorb ultraviolet light almost completely. Cerium can be readily detected in rare earth mixtures by a very sensitive qualitative test: addition of ammonia and hydrogen peroxide to an aqueous solution of lanthanides produces a characteristic dark brown color if cerium is present.

Symbol Ce
Atomic number 58
No. of naturally occurring isotopes 4
Atomic weight 140.12
Outer electron configuration 4f35d16s2
Ionization energy/kJmol 541
II 1047
III 1940
Metal radius(6-coordinate)/pm 181.8
Ionic radius(6-coordinate)/pm IV 87
Ionic radius(6-coordinatc)/pm III 102
Density (25°C)/gcm-3 Melting point /°C 6.776
Boiling point /°C 804
ΔHfus/kJmol-1 -3470
ΔHvap/kJmol-1 5.2(+/-1.2)
ΔHf(monoatomic gas)/kJmol-1 398
ΔHf(monoatomic gas)/kJmol-1 419
Electrical resistivity 3370
(25°C)/μohm cm 75
Eo(M4+(aq)+e- →M3+(aq))/V 1.61
Eo(M3+(aq)+3e- →M(S))/V -2.483
Temperature (oC) @Vap. Pressure
10-8 Torr 970
10-6 Torr 1150
10-4 Torr 1380
Techniques
Electron Beam Good
Crucible Al2O3 & Vitreous Graphite
Coil Tungsten
Boat Tungsten & Tantalum
Remarks
Films oxidize easily.