MOLYBDENUM DIBORIDE
- CAS NO.：12007-27-1
- Empirical Formula: B2Mo
- Molecular Weight: 117.56
- MDL number: MFCD00046193
- EINECS: 234-502-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-20 15:44:43
What is MOLYBDENUM DIBORIDE?
Chemical properties
Molybdenum diboride is a gray powder with high strength and hardness and has resistance to high temperatures, good electrical conductivity, and good oxidation resistance.
Industrial uses
Molybdenum boride, Mo2B, has a specificgravity of 9.3, a Knoop hardness of 1660, anda melting point of about 1660°C. Tungstenboride, W2B, has a specific gravity of 16.7 anda melting point of' 2770°C. Titanium boride,TiB2, is light in weight with a specific gravityof 4.5. It has a melting point at about 2593°C.Molded parts made from the powder have aKnoop hardness of 3300 and a flexural strengthof 241 MPa, and they are resistant to oxidationto 982°C with a very low oxidation rate abovethat point to about 1371°C. They are inert tomolten aluminum. Intermetal powders of beryllium–tantalum, beryllium–zirconium, andberyllium–columbium are also marketed, andthey are lightweight and have high strength.Sintered parts resist oxidation to 1649°C.
Properties of MOLYBDENUM DIBORIDE
| Melting point: | 2100 ℃ |
| Density | 7780 (ρ/kg.m–3) |
| Resistivity | 45 (ρ/μΩ.cm) |
| Crystal Structure | Hexagonal |
| CAS DataBase Reference | 12007-27-1 |
| EPA Substance Registry System | Molybdenum boride (MoB2) (12007-27-1) |
Safety information for MOLYBDENUM DIBORIDE
Computed Descriptors for MOLYBDENUM DIBORIDE
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