Lanthanum Foil - T 0.5mm 100mm x 100mm
Formula: La
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.5mm
Length 1: 100mm
Length 2: 100mm
CAS Number: 7439-91-0
UOM Code: 578-686-55
Legacy Code: LA000240
Distributor Code: GF57868655
SKU: 1000125724
Product Code: LA00-FL-000140
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.5mm
Length 1: 100mm
Length 2: 100mm
CAS Number: 7439-91-0
UOM Code: 578-686-55
Legacy Code: LA000240
Distributor Code: GF57868655
SKU: 1000125724
Product Code: LA00-FL-000140
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°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 |