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Formula: Er
Form: Disk
Material: Erbium
CAS Number: 7440-52-0
Commodity: Metals
Purity: 99%
Temper: As Rolled
Thickness: 0.025mm
Diameter: 20mm
Hazard Pictogram: GHS02
Erbium disks offer the rare earth metal, erbium. With a silver-white appearance, this metal is notable for its use in fiber optic amplifiers and lasers due to its ability to emit light in the infrared region. These disks can be utilized for research and development purposes across a wide array of photonics applications. They’re also the ideal choice for scientists and engineers experimenting with erbium's unique properties.
Technical Data Sheet Safety Data Sheet Tolerance Properties

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Tolerances

Disk
Thickness >0.05mm ±10%
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 68
Crystal structure Hexagonal close packed
Electronic structure Xe 4f¹² 6s²
Valences shown 3
Atomic weight( amu ) 167.26
Thermal neutron absorption cross-section( Barns ) 160
Natural isotope distribution( Mass No./% ) 166/ 33.4
Natural isotope distribution( Mass No./% ) 162/ 0.1
Natural isotope distribution( Mass No./% ) 168/ 27.0
Natural isotope distribution( Mass No./% ) 170/ 15.0
Natural isotope distribution( Mass No./% ) 167/ 22.9
Natural isotope distribution( Mass No./% ) 164/ 1.6
Atomic radius - Goldschmidt( nm ) 0.175
Ionisation potential( No./eV ) 2/ 11.93
Ionisation potential( No./eV ) 1/ 6.10
Mechanical Properties
Element Value
Material condition Polycrystalline
Poisson's ratio 0.207
Bulk modulus( GPa ) 41.8
Tensile modulus( GPa ) 73.3
Hardness - Vickers( kgf mm⁻² ) 70
Tensile strength( MPa ) 292
Yield strength( MPa ) 292
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 86@20@20°C
Temperature coefficient( K⁻¹ ) 0.00201@0-100°C
Physical Properties
Element Value
Boiling point( C ) 2863
Density( gcm⁻³ ) 9.051@20°C
Thermal Properties
Element Value
Melting point( C ) 1529
Latent heat of evaporation( J g⁻¹ ) 1680
Latent heat of fusion( J g⁻¹ ) 103
Specific heat( J K⁻¹ kg⁻¹ ) 168@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 14.5@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 9.2@0-100°C

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