57 138.910
La
Lanthanum

Lanthanum , La

Lanthanum is a chemical element with the symbol La and atomic number 57. Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is a lanthanide. Found in some rare-earth minerals, usually in combination with cerium and other rare earth elements.

 

  • 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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L1-5000-M

La 3-6mm Pieces TREM 99.5% La/TREM 99.9% Pure

Lanthanum

4.1 UN3089 PG II Flammable

L1-5007-M

La2O3 3-12mm Pieces 99.9% Pure

Lanthanum Oxide

L1-5010-M

LaF3 1-5mm Pieces 99.99% Pure

Lanthanum Fluoride

L1-5011-M

La2Ti2Ox 1-3mm Pieces (dark grey) 99.99% Pure

Lanthanum Titanate

L1-5012-M

La2O3 1-6mm Pieces 99.99% Pure

Lanthanum Oxide

L1-5013-M

LaTiO 3-6mm Pieces 99.99% Pure

Lanthanum Titanate

L1-5015-M

La Pieces <10mm Pieces TREM 99.5% La/TREM 99.9% Pure

Lanthanum

4.1 UN3089 PG II Flammable

L1-5016-M

La Pieces 1-20mm Pieces TREM 99.5% La/TREM 99.9% Pure

Lanthanum

4.1 UN3089 PG II Flammable

L1-10008-P

LaCl3-xH2O -4 Mesh 99.9% Pure

Lanthanum Chloride

L1-10009-P

LaCl3 -20 Mesh 99.9% Pure

Lanthanum Chloride

L1-10011-P

LaF3 -60 Mesh 99.9% Pure

Lanthanum Fluoride

L1-10012-P

LaF3 -325 Mesh 99.999% Pure

Lanthanum Fluoride

L1-10016-P

LaN -60 Mesh 99.9% Pure

Lanthanum Nitride

L1-10017-P

La2O3 Powder -325 Mesh 99.999% Pure

Lanthanum Oxide

L1-10018-P

La2O3 -200 Mesh (typ. =10 microns) 99.99% Pure

Lanthanum Oxide

L1-10020-P

La2S3 -200 Mesh 99.99% Pure

Lanthanum Sulphide

L1-10021-P

LaS2 -200 Mesh 99.9% Pure

Lanthanum Sulphide

L1-10022-P

La2Te3 -20 Mesh 99.9% Pure

Lanthanum Telluride

6.1 UN3288 PG III Toxic

L1-10023-P

LaF3 <20 Microns 99.99% Pure

Lanthanum Fluoride

L1-10024-P

La2O3 Powder 5 Microns 99.999% Pure

Lanthanum Oxide

L1-10025-P

La2O3 Powder 5 Microns 99.99% Pure

Lanthanum Oxide

L1-2000-R1

La Rod 6.35mm dia. x 150mm long 99.9% Pure (metal basis)

Lanthanum

L1-2000-R2

La Rod 6.35mm dia. x 5mm long 99.9% Pure (REO) (metal basis)

Lanthanum

L1-2001-R1

La Rod 12.7mm dia. x 100mm long 99.9% Pure - Packaged under Argon

Lanthanum

 

L1-2002-R1

La Rod 4mm dia. x 250mm long 99% Pure

Lanthanum

L1-9001-D1

LaB6 Rod 5-8mm dia. x 50mm long 99.5% Pure - Density 90% min

Lanthanum Boride

LA-SHT-0.25

La Sheet Thickness 0.254mm (0.010") 99.9% pure

Lanthanum

LA-SHT-0.5

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

Lanthanum

LA-SHT-0.76

La Sheet Thickness 0.76mm (0.030") 99.9% pure

Lanthanum

LA-SHT-1

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

Lanthanum

L1-9000-D

Lanthanum La, TREM 99.5%. La/TREM 99.9% Pure

L1-9002-D

Lanthanum fluoride, LaF3, 99.99% Pure

L1-9003-D

Lanthanum oxide, La2O3, 99.99% Pure

L1-9005-D

Lanthanum Iron oxide LaFeO3, 99.9% Pure

L1-9006-D

Lanthanum-Silicon La-Si, 99.9% Pure - Available in various ratios wt% or at%

L1-9007-D

Lanthanum-Strontium-Manganese oxide LaSrMnO3, 99.9% Pure - Available in various ratios wt% or at%

L1-9008-D

Lanthanum oxide-Zirconium oxide La203Zr02, 99.9% Pure - Available in various ratios wt% or at%

L1-9011-D

Lanthanum-Calcium-Manganese oxide LaCaMnO3, 99.95% Pure - Available in various ratios wt% or at%

L1-9012-D

Lanthanum Manganese oxide LaMnO3, 99.9% Pure

L1-9013-D

Lanthanum-Strontium-Nickel oxide LaSrNiO, 99.5% Pure - Available in various ratios wt% or at%

L1-9014-D

Lanthanum Chromium oxide LaCr03, 99.9% Pure

L1-9016-D

Lanthanum Nickel oxide LaNi03, 99.9% & 99.99% Pure

L1-9017-D

Lanthanum Titanium oxide LaTiO3, 99.99% Pure

L1-9018-D

Lanthanum Vanadium oxide LaVO3, 99.9% Pure

L1-9021-D

Lanthanum Aluminate LaAlO3, 99.9% Pure

L1-9023-D

Lanthanum-Manganese La-Mn, 99.9% Pure - Available in various ratios wt% or at%

L1-9024-D

Lanthanum Iron LaFe2, 99.9% Pure

L1-9025-D

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

LA-F-0.1

La Foil Thickness 0.1mm (0.004") 99.9% Pure

Lanthanum 

LA-F-0.2

La Foil Thickness 0.2mm (0.008") 99.9% Pure

Lanthanum 

L1-9002-D2

LaF3 TRG 101.6mm dia. x 5mm Tk 99.99% Pure

Lanthanum Fluoride

L1-9003-D1

La2O3 TRG 50.8mm dia. x 6.35mm TK 99.99% Pure

Lanthanum Oxide

L1-9003-D2

La2O3 TRG 25.4mm dia. x 6.35mm Tk 99.99% Pure

Lanthanum Oxide

L1-9003-D3

La2O3 TRG 25.4mm dia. x 6.35mm Tk 99.9% Pure

Lanthanum Oxide

L1-9003-D4

La2O3 TRG 76mm dia. x 5mm Tk 99.95% Pure

Lanthanum Oxide

L1-9003-D5

La2O3 TRG 76.2mm dia. x 3.18mm Tk 99.99% Pure

Lanthanum Oxide

L1-9003-D6

La2O3 TRG 76.2mm dia. x 4-5mm Tk 99.99% Pure

Lanthanum Oxide

L1-9003-D7

La2O3 TRG 50.8mm dia. x 4mm Tk 99.99% Pure

Lanthanum oxide

L1-9019-D1

LaNiO3 TRG 25.4mm dia. x 6.35mm Tk 99.9% Pure

Lanthanum Nickel Oxide

LA-ST-2-6-3N

La TRG 50.8MM dia. x 6mm Tk TREM 99.5% La/TREM 99.9% Pure

Lanthanum

LA-ST-3-3-3N

La TRG 76.2mm dia. x 3mm Tk TREM 99.5% La/TREM 99.9% Pure

Lanthanum

LA-ST-4-6-3N

La TRG 101.6mm dia. x 6mm Tk TREM 99.5% La/TREM 99.9% Pure

Lanthanum

CRY-LSAT

LSAT single crystal substrate/wafer

Chemical formula: (La,Sr)(Al,Ta)O3

More Info
CRY-LaAlO3

Lanthanum aluminate (LaAlO3) single crystal substrate

More Info
CRY-LaSrAlO4

LaSrAlO4 single crystal substrate

More Info
L1-9004-D30

LaAlO3 substrate 10mm x 10mm x 0.5mm Tk

Lanthanum

Lanthanum is malleable, ductile, and soft enough to be cut with a knife. It is one of the most reactive of the rare-earth metals. The metal reacts directly with elemental carbon, nitrogen, boron, selenium, silicon, phosphorus, sulfur, and with halogens. It oxidizes rapidly when exposed to air. Cold water attacks lanthanum slowly, while hot water attacks it much more rapidly.

Symbol La
Atomic Number 57
No. of naturally occurring isotopes 2
Atomic weight 138.9055
Electronic configuration [Xe]5d16s2
Metal radius( 12-coordinate)/pm 187
Ionic radius(6-coordinate)/pm 103.2
Ionization energy Idmol-1 I 538
Ionization energy/kJmol-1 II 1067
Ionization energy/kJmol-1 III 1850
Density (20°C)/gcm3 6.17
Melting point / °C 920
Boiling point / °C 3420
ΔHfus/kJmol-1 8.5
ΔHvap/kJmol-1 402
ΔHf(monoatomic gas/kJmol-1 423(+/-6)
Electronegativity χ 1.1
Electrical resistivity
(20°C)/μohm cm 57-80
Eo(M3+(aq)+ 3e- →M(s))/V -2.522
Temperature (oC) @Vap. Pressure
10-8 Torr 990
10-6 Torr 1212
10-4 Torr 1388
Techniques
Electron Beam Excellent
Crucible Al2O3
Coil -
Boat Tungsten & Tantalum
Remarks
Films will burn in air if scraped