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- About Us
Antimony
Antimony (Sb) is a lustrous gray metalloid known for its flame-retardant and alloying properties. With a melting point of 630 °C, it exhibits good electrical conductivity, chemical stability, and resistance to corrosion. Often used in semiconductors, flame retardants, and low-friction alloys, antimony plays a key role in both industrial and scientific contexts.
Goodfellow’s range of Antimony (Sb) products, including Antimony Foils, Pellets, Powder, and Sputtering Targets, is essential for research and development laboratories and in many industries. Antimony is widely utilized in semiconductor technology, thermoelectric devices, and battery applications, offering exceptional conductivity and flame-retardant properties. Our high-purity Antimony products, such as Antimony Single Crystal Disks and Thin Films, are tailored for advanced research in materials science, electronics, and energy storage. Known for their versatility, Antimony materials are also critical in applications spanning electronics, metallurgy, and sustainable technologies. With customizable options and precise formulations, Goodfellow provides high-quality Antimony materials to empower innovation for manufacturing and R&D professionals worldwide.
Properties
Identifiers
Isotopes
Applications
Grades
Synonyms
General Properties
| Property | Value |
|---|---|
| Atomic Number | 51 |
| Density | 6.697 g/cm³ |
| Melting Point | 630.63 °C |
| Boiling Point | 1587 °C |
| Thermal Conductivity | 24.4 W/m·K |
| Electrical Resistivity | 417 nΩ·m |
| Crystal Structure | Rhombohedral |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness | Mohs 3 |
| Elastic Modulus | 55 GPa |
| Poisson’s Ratio | 0.25 |
Chemical Properties
| Property | Value |
|---|---|
| Corrosion Resistance | Good, forms protective oxide layer |
| Reactivity | Stable in air, reacts with halogens and acids |
| Oxidation States | +3, +5 |
| Surface Oxide | Antimony trioxide (Sb₂O₃) |
| Identifier | Value |
|---|---|
| Symbol | Sb |
| Atomic Number | 51 |
| CAS Number | 7440-36-0 |
| UN Number | UN2871 (powder) |
| EINECS Number | 231-146-5 |
| Isotope | Type | Notes |
|---|---|---|
| Sb-121 | Stable | 57.3% natural abundance |
| Sb-123 | Stable | 42.7% |
Scientific Applications
| Use Case | Description |
|---|---|
| Semiconductors | Key element in III-V compounds like GaSb and InSb for optoelectronic devices |
| Thermoelectrics | Used in antimony-based thermoelectric materials for power generation |
| Flame Retardant Research | Studied for synergistic effects in halogen-based flame retardant systems |
| Metallurgical Studies | Analyzed in alloy systems to explore solidification and phase transitions |
| Geochemical Tracing | Used in stable isotope tracing in environmental and geological research |
Industrial Applications
| Use Case | Description |
|---|---|
| Lead Alloys | Improves hardness, corrosion resistance, and castability in battery and bearing alloys |
| Plastics & Textiles | Used as a synergist in flame retardants for consumer and industrial products |
| Glass Manufacturing | Removes bubbles and improves optical clarity in specialty glass |
| Soldering | Used in lead-free and low-lead solder alloys for electronics |
| Machinery Components | Used in antifriction alloys (e.g., babbitt metals) for heavy-duty equipment |
| Purity | Common Use |
|---|---|
| 95% | General industrial applications (e.g., flame retardants) |
| 99% | Alloys, batteries, and glass manufacturing |
| 99.99% | Electronic components, semiconductors |
| 99.999% | Advanced R&D, photonics, and specialty electronics |
| Synonym |
|---|
| Sb |
| Stibium |
| Antimony Metal |