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Molybdenum
Molybdenum (Mo) is a refractory transition metal known for its exceptional thermal stability, high melting point, and corrosion resistance. Commonly used in high-performance alloys and industrial applications, it plays a critical role in electronics, aerospace, and energy sectors.
Goodfellow’s supplies molybdenum poducts in many forms, such as rods, foils, sputtering targets and crucibles, and purity levels ranging from 99.8% to 99.999%. Molybdenum plays a key role in fields such as semiconductor manufacturing, aerospace, and high-temperature applications. Molybdenum-based materials are critical in the production of electronic components, coatings, and in the fabrication of specialized alloys. Our high-purity Molybdenum materials are trusted by laboratory researchers in material science, renewable energy, and electronics, supporting innovations in technology and advanced manufacturing processes.
Properties
Identifiers
Isotopes
Applications
Grades
Synonyms
General Properties
| Property | Value |
|---|---|
| Atomic Number | 42 |
| Density | 10.28 g/cm³ |
| Melting Point | 2623 °C |
| Boiling Point | 4639 °C |
| Thermal Conductivity | 138 W/m·K |
| Electrical Resistivity | 53 nΩ·m |
| Crystal Structure | Body-centered cubic (BCC) |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness | Mohs ~5.5 |
| Elastic Modulus | 329 GPa |
| Poisson’s Ratio | 0.31 |
Chemical Properties
| Property | Value |
|---|---|
| Corrosion Resistance | Excellent; resists attack by many acids and alkalis |
| Reactivity | Forms oxides at high temperatures |
| Oxidation States | +2 to +6 |
| Surface Oxide | Molybdenum trioxide (MoO₃) |
| Identifier | Value |
|---|---|
| Symbol | Mo |
| Atomic Number | 42 |
| CAS Number | 7439-98-7 |
| UN Number | N/A |
| EINECS Number | 231-107-2 |
| Isotope | Type | Notes |
|---|---|---|
| Mo-92 to Mo-100 | Stable | Seven stable isotopes with varying natural abundances |
| Mo-99 | Radioactive | Used in medical diagnostics (precursor to Tc-99m) |
Scientific Applications
| Use Case | Description |
|---|---|
| Thin Film Deposition | Used in semiconductor and photovoltaic research |
| High-Temperature Furnaces | Critical component in heating elements and thermal shields |
| Neutron Scattering | Used as sample holders in neutron diffraction experiments |
| Catalysis Research | Studied for use in hydrodesulfurization and other catalytic processes |
| X-ray Targets | Used in analytical and medical imaging devices |
Industrial Applications
| Use Case | Description |
|---|---|
| Steel Alloys | Improves strength, hardness, and corrosion resistance |
| Aerospace Components | Used in parts exposed to extreme temperatures |
| Electrodes | Used in EDM and high-temperature welding applications |
| Glass Melting Electrodes | Withstands corrosive environments in molten glass production |
| Medical Isotope Production | Mo-99 used in nuclear medicine supply chains |
| Grade | Description |
|---|---|
| 99.8% | Industrial-grade molybdenum used in furnace components, electrodes, and general-purpose alloys |
| 99.9% | High-purity material for demanding metallurgical and coating applications |
| 99.95% | Research-grade molybdenum used in electronics and scientific instruments |
| 99.98% | Ultra-high purity suitable for semiconductor applications and sensitive vacuum environments |
| 99.999% | Electronic-grade molybdenum used in advanced microelectronics and specialized research |
| Synonym |
|---|
| Mo |
| Elemental Molybdenum |
| Molybdenum Metal |