Molybdenum Disulfide
MoS2, Molybdenite
- CAS
- 1317-33-5
- EC
- 215-263-9
- Sectors
- Lubricants & Metalworking, Coatings, Adhesives, Sealants & Elastomers
Molybdenum Disulfide (CAS 1317-33-5) is a molybdenum-sulfur compound with a lamellar structure and metallic luster, supplied as a dark grey or black powder that is insoluble in water and used as a dry lubricant in high-temperature and vacuum environments and as a solid lubricant additive in greases and coatings. It is insoluble in water and chemically inert.
Typical Properties
| Molecular formula | MoS2 |
|---|---|
| Molecular weight | 160.07 g/mol |
| Appearance | dark grey or black powder |
| Form | powder |
| Color | Gray to dark gray or black |
| Odor | Transparent |
| Melting point | 2375 °C |
| Boiling point | 1565 °C |
| Density | 5.06 g/cm³ @ Temp: 15 °C |
| GHS signal word | Danger · Irritant / harmful, Health hazard |
| HS code | 28309090 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Molybdenum Disulfide
Applications
Used as a dry lubricant in high-temperature and vacuum environments. In metallurgy, it enhances hardness and corrosion resistance. Also serves as a solid lubricant additive in greases and coatings.
Safety & Risks
Stable and non-toxic; avoid generating airborne dust.
Packaging
Delivered in 25 kg fiber drums or PE-lined bags. Store in cool, dry, and clean conditions.