Tellurium is a rare, silverwhite metalloid known for its brittleness and mild toxicity. In its conventional industrial use, it is added to copper and steel alloys—such as CopperTellurium (CuTe)—to enhance machinability and improve mechanical performance.
Highpurity tellurium plays a far more specialized role in the electronics and semiconductor industries. Its distinctive electrical and thermal properties make it essential for advanced functional materials. It is a key component in thermoelectric compounds such as Bismuth Telluride (BiTe) for solidstate cooling and Cadmium Telluride (CdTe) for highefficiency photovoltaic cells and infrared optical applications. Cadmium Zinc Telluride (CdZnTe or CZT), another important telluriumbased alloy, is widely used in the fabrication of highresolution solidstate Xray and gammaray detectors.
Gallium Telluride (GaTe), produced in highpurity form, serves as a source material for electronbeam and thermal evaporation processes. It is also used in molecular beam epitaxy (MBE), supporting the growth of advanced semiconductor structures for research and device manufacturing.
General Properties
| Properties | Value |
| Symbol | Te |
| CAS Number | 13494809 |
| EINECS Number | 2368134 |
| Atomic Number | 52 |
| Atomic Mass | 127.60 g/mol |
| Density | 6.232–6.24 g/cm³ (solid at 20 °C) |
| Melting Point | 449.51 °C (722.66 K) |
| Boiling Point | 988 °C (1261 K) |
| Thermal Conductivity | ~3 W/(m·K) |
| Electrical Resistivity | 0.0001 mΩ·m (i.e., 1×10⁻⁷ Ω·m) |
| Electronegativity | 2.1 |
| Heat of Vaporization | 114.1 kJ/mol |
| Heat of Fusion | 17.49–17.5 kJ/mol |
Product Availability
We provide high-purity Tellurium (Te) metal tailored for semiconductor and industrial requirements.
| Purity | Up to 99.99999% (7N) |
| Forms | Small chunk sizes or other forms and 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.