Selenium Powder - W 100g
Formula: Se
Percentage Purity: 99.95%
Maximum Particle Size: 250µm
Weight: 100g
CAS Number: 7782-49-2
UOM Code: 730-715-14
Legacy Code: SE006010
Distributor Code: GF73071514
SKU: 1000180631
Product Code: SE00-PD-000110
Percentage Purity: 99.95%
Maximum Particle Size: 250µm
Weight: 100g
CAS Number: 7782-49-2
UOM Code: 730-715-14
Legacy Code: SE006010
Distributor Code: GF73071514
SKU: 1000180631
Product Code: SE00-PD-000110
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 |