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Formula: Tm
Form: Foil (Light Tight)
Material: Thulium
CAS Number: 7440-30-4
Commodity: Metals
Purity:
99%
Temper:
As Rolled
Light Tight:
Light Tight
Hazard Pictogram:
GHS02
Thulium Foil (Light Tight) is a thin foil of thulium metal that’s opaque to light. With high density and ductility, it has applications in research settings as radiation shielding for sensitive optical equipment. Available in a variety of thicknesses from 0.025mm to 0.5mm, Goodfellow's thulium foils enable flexibility in designing custom light-blocking solutions. With 12 variations to choose from, this high-purity foil supports applications ranging from laser optics to semiconductor processing.
Flammable
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 |
Other Customers Purchased
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Selenium Foil (Light Tight) Formula: Se
Percentage Purity: 99.95%
Thickness: 3mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7782-49-2
UOM Code: 663-952-12
eachStarting at £882.37
Discounts applied for volume purchases -
6-4 Plate Titanium Foil (Light Tight) Grade: 6-4 Plate
Formula: Ti
Thickness: 25mm
Length 1: 278mm
Length 2: 278mm
CAS Number: 7440-32-6
UOM Code: 929-338-86
eachStarting at £0.00
Discounts applied for volume purchases -
Platinum/Rhodium Alloy Foil (Light Tight) (Pt60/Rh40) Formula: Pt60/Rh40
Temper: As Rolled
Thickness: 0.125mm
Length 1: 25mm
Length 2: 25mm
UOM Code: 742-121-52
eachStarting at £2,299.95
Discounts applied for volume purchases -
Terbium Foil (Light Tight) Formula: Tb
Percentage Purity: 93%
Temper: As Rolled
Thickness: 0.6mm
Length 1: 50mm
Length 2: 50mm
UOM Code: 436-560-65
eachStarting at £0.00
Discounts applied for volume purchases -
Tungsten/Copper Alloy Foil (Light Tight) (W 80/Cu20) Formula: W 80/Cu20
Thickness: 3mm
Length 1: 100mm
Length 2: 100mm
UOM Code: 473-210-07
eachStarting at £218.76
Discounts applied for volume purchases -
Tin/Lead/Silver Alloy Foil (Light Tight) (Sn62/Pb36/Ag2) Formula: Sn62/Pb36/Ag2
Temper: As Rolled
Thickness: 0.5mm
Length 1: 15mm
Length 2: 15mm
UOM Code: 986-630-91
eachStarting at £178.11
Discounts applied for volume purchases
