Antimony is a lustrous, silvergray metalloid known for its hardness, brittleness, and excellent resistance to chemical attack. It plays a vital role in modern industry due to its ability to enhance the strength, hardness, and flameretardant properties of various materials
Highpurity Antimony (Sb) is a metalloid valued for its electronic, optical, and thermoelectric properties. In its refined form, antimony is essential for applications requiring strict control of impurities, including compound semiconductor fabrication, infrared detector materials, thermoelectric research, and advanced alloy development.
Sb is widely used in III–V semiconductor systems such as InSb, GaSb, and related antimonide compounds, where it serves as a key element for highmobility electronic devices, midinfrared photonics, and narrowbandgap optoelectronic structures. Its high purity is critical for ensuring reproducible material behavior, minimizing defect formation, and achieving precise electronic and optical performance.
Due to its stability and compatibility with highvacuum processes, highpurity antimony is also employed as a source material in molecular beam epitaxy (MBE) and other thinfilm deposition techniques used in semiconductor research and device manufacturing.
General Properties
| Properties | Value |
| Symbol | Sb |
| CAS Number | 7440-36-0 |
| EINECS Number | 231-146-5 |
| Atomic Number | 51 |
| Atomic Weight | 121.75 |
| Density | 6.68 g cm-3 |
| Melting point | 630.63 °C |
| Boiling point | 1635 °C |
| Thermal Conductivity | 24.4 W/(m⋅K) |
| Electrical Resistivity | 417 Micron-cm at 20 °C |
| Electronegativity | 2.05 Pauling scale |
Product Availability
We supply high-purity (MBE-grade) Antimony (Sb) tailored for semiconductor and industrial requirements:
| Purity | Up to 99.999995% (7N5) |
| Forms | Pellets, Shot, Ingots, or custom dimensions |
| Packaging | Small packages, vacuum-sealed |
If you require any of this high-purity metal, please contact our sales team for details at sales@american-gmg.com.