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Formula: Se
Form: Foil (Light Tight)
Material: Selenium
CAS Number: 7782-49-2
Commodity: Metals
Purity:
99.95%
Thickness:
3mm
Side 1:
25mm
Side 2:
25mm
Light Tight:
Light Tight
Hazard Pictogram:
GHS06,GHS08,GHS09
Goodfellow's selenium foil (light tight) is a thin, flexible foil form of the chemical element selenium. This opaque metallic material blocks visible light and infrared radiation. With a density of 4.79 g/cm3, selenium foil combines high electrical conductivity and photoconductivity. Applications of this light-blocking foil include fabrication of X-ray detectors and solar cells. Within Goodfellow's wide range of metals, alloys, ceramics and other materials, selenium foil delivers specialized optical and photoelectric properties.
Acute toxicity
Serious health hazard
Hazardous to the environment
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 34 |
| Crystal structure | Hexagonal |
| Electronic structure | Ar 3d¹⁰ 4s² 4p⁴ |
| Valences shown | -2,4,6 |
| Atomic weight( amu ) | 78.96 |
| Thermal neutron absorption cross-section( Barns ) | 12.2 |
| Photo-electric work function( eV ) | 5.9 |
| Natural isotope distribution( Mass No./% ) | 76/ 9.0 |
| Natural isotope distribution( Mass No./% ) | 82/ 9.2 |
| Natural isotope distribution( Mass No./% ) | 74/ 0.9 |
| Natural isotope distribution( Mass No./% ) | 80/ 49.8 |
| Natural isotope distribution( Mass No./% ) | 77/ 7.6 |
| Natural isotope distribution( Mass No./% ) | 78/ 23.5 |
| Atomic radius - Goldschmidt( nm ) | 0.116 |
| Ionisation potential( No./eV ) | 4/ 42.9 |
| Ionisation potential( No./eV ) | 6/ 81.7 |
| Ionisation potential( No./eV ) | 5/ 68.3 |
| Ionisation potential( No./eV ) | 1/ 9.75 |
| Ionisation potential( No./eV ) | 3/ 30.8 |
| Ionisation potential( No./eV ) | 2/ 21.2 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Mohs | 2 |
| Material condition | Polycrystalline |
| Poisson's ratio | 0.447 |
| Bulk modulus( GPa ) | 8.3 |
| Tensile modulus( GPa ) | 58 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 12@20@20°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 685 |
| Density( gcm⁻³ ) | 4.79@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 217 |
| Latent heat of evaporation( J g⁻¹ ) | 333 |
| Latent heat of fusion( J g⁻¹ ) | 69 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 321@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.5@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 37@0-100°C |
Other Customers Purchased
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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 $3,363.68
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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 $260.49
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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 $319.94
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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 -
Thulium Foil (Light Tight) Formula: Tm
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.5mm
Length 1: 25mm
Length 2: 50mm
CAS Number: 7440-30-4
UOM Code: 425-719-64
eachStarting at $295.14
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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
