Selenium is a gray, metalliclooking metalloid with properties that bridge those of metals and nonmetals. It is used across a wide range of industries, including metallurgy, chemical manufacturing, pigments, electronics, agriculture, and animal nutrition. Selenium also plays an important role in glass production, where it is used for decolorizing and tinting applications.
Highpurity selenium is essential for advanced thinfilm and semiconductor technologies. It is widely used in vacuumdeposition processes and is a key material in the solar industry for producing CIGS (Copper Indium Gallium Selenide) photovoltaic cells. In semiconductor manufacturing, selenium is used to produce zinc selenide (ZnSe) for infrared optical components. It also serves as a highquality source material for molecular beam epitaxy (MBE) and other deposition techniques used in semiconductor research and device fabrication.
General Properties
| Properties | Value |
| Symbol | Se |
| CAS Number | 7782-49-2 |
| EINECS Number | 231-957-4 |
| Atomic Number | 34 |
| Atomic Mass | 78.96 u |
| Density | 4.79 g/cc |
| Melting Point | 221 °C |
| Boiling Point | 685 °C |
| Thermal Conductivity | 0.519 W/(m⋅K) |
| Electrical Resistivity | 106 microhm-cm @ 0 oC |
| Electronegativity | Pauling scale: 2.55 |
| Heat of Vaporization | 95.48 kJ/mol |
| Heat of Fusion | 6.69 kJ/mol |
Product Availability
We provide high-purity Selenium (Se) metal tailored for semiconductor and industrial requirements.
| Purity | Up to 99.99995% (6N5) |
| Forms | Small chunk and pellet sizes |
| Package | Vacuum-sealed |
If you require any of this high-purity metal, please contact our sales team for details at sales@american-gmg.com.