Thulium Disk

Formula: Tm

Form: Disk

Material: Thulium

CAS Number: 7440-30-4

Commodity: Metals

Purity: 99%

Temper: As Rolled

Thickness: 0.15mm

Diameter: 12.7mm

Hazard Pictogram: GHS02

Thulium disks are part of our collection of rare earth metal products. With high density, ductility and unique magnetic properties, they has niche applications in research labs exploring quantum computing materials and advanced laser systems. Thulium disks enable materials scientists to test thin film coatings and alloy compositions relevant to cutting-edge computing and optics R&D.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

Flammable

each

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	69
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f¹³ 6s²
Valences shown	2,3
Atomic weight( amu )	168.9342
Thermal neutron absorption cross-section( Barns )	115
Atomic radius - Goldschmidt( nm )	0.174
Ionisation potential( No./eV )	1/ 6.18
Ionisation potential( No./eV )	3/ 23.71
Ionisation potential( No./eV )	2/ 12.05

Mechanical Properties

Element	Value
Hardness - Brinell	53
Material condition	Polycrystalline
Poisson's ratio	0.235
Bulk modulus( GPa )	40.5
Tensile modulus( GPa )	76

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	90@20@20°C
Temperature coefficient( K⁻¹ )	0.00195@0-100°C

Physical Properties

Element	Value
Boiling point( C )	1947
Density( gcm⁻³ )	9.322@25°C

Thermal Properties

Element	Value
Melting point( C )	1545
Latent heat of evaporation( J g⁻¹ )	1456
Latent heat of fusion( J g⁻¹ )	109
Specific heat( J K⁻¹ kg⁻¹ )	160@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	16.9@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	11.6@0-400°C

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Thulium Disk

Tolerances

Material Properties for Metals