Cadmium is a soft, whitesilvery metal valued for its stability, low melting point, and excellent performance in specialized electronic and optical applications.
Highpurity cadmium—particularly cadmium refined for semiconductorgrade use—is an essential precursor for advanced compound semiconductor materials. One of its most important applications is in the production of cadmium telluride (CdTe), a key material used to grow highquality CdTe single crystals. These crystals serve as the foundation for infrared optical components, including precision blanks and lenses. Beyond CdTe, highpurity cadmium is also critical in the fabrication of infrared and radiationdetection materials, such as:
- CdHgTe (MCT) and CdZnTe (CZT) for highperformance infrared detectors
- CdZnTe (CZT) for roomtemperature Xray and gammaray detectors used in modern medical imaging, security screening, and scientific instrumentation
In addition, highpurity cadmium is widely used as a source material for molecular beam epitaxy (MBE), supporting both semiconductor research and commercial device production where precise control of material purity and composition is essential.
General Properties
| Properties | Value |
| Symbol | Cd |
| CAS Number | 7440-69-9 |
| EINECS Number | 231-177-4 |
| Atomic Number | 48 |
| Atomic Weight | 112.41 |
| Density | 8.65 g/cc |
| Melting Point | 321.07 °C |
| Boiling Point | 767 °C |
| Thermal Conductivity | 96.6 W/(m⋅K) |
| Electrical Resistivity | 72.7 nΩ⋅m (at 22 °C) |
| Electronegativity | Pauling scale: 1.69 |
| Heat of Vaporization | 99.87 kJ/mol |
| Heat of Fusion | 6.21 kJ/mol |
Product Availability
We provide high-purity (MBE-grade) Cadmium (Cd) tailored for semiconductor and industrial requirements.
| Purity | Up to 99.99999% (7N) |
| Forms | Ingots at various 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.