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Formula: La
Form: Foil/Film/Sheet
Material: Lanthanum
CAS Number: 7439-91-0
Commodity: Metals
Purity:
99%
Temper:
As Rolled
Lanthanum Foil is a thin metallic foil available in 16 variations. A soft, ductile rare earth metal, lanthanum is used in research applications and in the production of optical coatings, scintillators, and hydrogen storage alloys due to its unique optical, electrical and chemical properties. The ductility and malleability of Lanthanum Foil also makes it well-suited for applications requiring deformation, such as high-performance foil capacitors.
Tolerances
Foil/Film/Sheet
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 57 |
| Crystal structure | Hexagonal close packed/Face centred cubic |
| Electronic structure | Xe 5d¹ 6s² |
| Valences shown | 3 |
| Atomic weight( amu ) | 138.9055 |
| Thermal neutron absorption cross-section( Barns ) | 8.9 |
| Photo-electric work function( eV ) | 3.5 |
| Natural isotope distribution( Mass No./% ) | 139/ 99.91 |
| Natural isotope distribution( Mass No./% ) | 138/ 0.09 |
| Atomic radius - Goldschmidt( nm ) | 0.187 |
| Ionisation potential( No./eV ) | 3/ 19.18 |
| Ionisation potential( No./eV ) | 1/ 5.58 |
| Ionisation potential( No./eV ) | 2/ 11.06 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Polycrystalline |
| Poisson's ratio | 0.28 |
| Bulk modulus( GPa ) | 24.8 |
| Tensile modulus( GPa ) | 37.9 |
| Hardness - Vickers( kgf mm⁻² ) | 40 |
| Tensile strength( MPa ) | 131 |
| Yield strength( MPa ) | 124 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 57@20@20°C |
| Superconductivity critical temperature( K ) | 4.88 |
| Temperature coefficient( K⁻¹ ) | 0.00218@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 3457 |
| Density( gcm⁻³ ) | 6.174@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 921 |
| Latent heat of evaporation( J g⁻¹ ) | 2897 |
| Latent heat of fusion( J g⁻¹ ) | 60.2 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 197@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 13.4@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 4.9@0-100°C |
Other Customers Purchased
-
X-ray Quality Rhodium Foil Grade: X-ray Quality
Formula: Rh
Percentage Purity: 99.9%
Temper: As Rolled
Thickness: 0.025mm
Length 1: 10mm
Length 2: 10mm
CAS Number: 7440-16-6
UOM Code: 464-926-09
eachStarting at $673.56
Discounts applied for volume purchases -
Zinc Foil Formula: Zn
Percentage Purity: 99.9%
Thickness: 0.0025mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-66-6
UOM Code: 013-016-12
eachStarting at $152.18
Discounts applied for volume purchases -
Yttria-stabilized Zirconia Sheet (5% Yttria) Formula: ZrO₂/Y₂O₃
Thickness: 1mm
Length 1: 25mm
Length 2: 25mm
Stabilised With: 5% Yttria
CAS Number: 114168-16-0
UOM Code: 128-868-36
eachStarting at $676.87
Discounts applied for volume purchases -
Yttrium Foil Formula: Y
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.1mm
Length 1: 50mm
Length 2: 50mm
CAS Number: 7440-65-5
UOM Code: 117-129-99
eachStarting at $235.38
Discounts applied for volume purchases -
Ytterbium Foil Formula: Yb
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-64-4
UOM Code: 000-446-82
eachStarting at $239.48
Discounts applied for volume purchases -
Zirconium Foil Formula: Zr
Percentage Purity: 99.2%
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-67-7
UOM Code: 004-371-61
eachStarting at $165.58
Discounts applied for volume purchases
