Molybdenum disulfide CAS#1317-33-5
Excellent Solid Lubrication Performance – Molybdenum disulfide is an effective solid lubricant with excellent lubricity, particularly under demanding operating conditions.
Outstanding Performance Under Extreme Conditions – It maintains excellent lubricating performance under high and low temperatures, high loads, high speeds, chemical corrosion, and ultra-high-vacuum conditions.
Multifunctional Friction and Wear Control – Molybdenum disulfide can function as a friction modifier, anti-wear agent, extreme-pressure agent, and antioxidant, helping improve equipment performance and durability.
Wide Range of Industrial Applications – It is widely used in aviation, automotive, mechanical, mining, military, shipbuilding, heavy industry, bearings, gears, and assembly applications, as well as in lubricants, catalysts, gas storage materials, and photovoltaic materials.
Products Description of Molybdenum Disulfide CAS#1317-33-5
Molybdenum disulfide, the main component of molybdenite, is a lead-gray to black solid powder with a greasy feel and no odor. It belongs to the hexagonal or orthorhombic crystal system, has a graphite-like structure, and exhibits a metallic luster.
Molybdenum disulfide is an excellent solid lubricant material with outstanding lubricating properties for equipment operating under high or low temperatures, high loads, high speeds, chemical corrosion, and ultra-high-vacuum conditions. It can be used as a friction modifier (friction reducer), anti-wear agent, extreme-pressure agent, and antioxidant.
Molybdenum disulfide is widely used in the aviation industry for vacuum and radiation-resistant lubrication, as well as in the automotive, mechanical, mining, military, shipbuilding, heavy-duty, bearing, gear, and assembly industries. It is also used as an additive in various lubricants and in the production of molybdenum compounds, catalytic hydrogenation desulfurization catalysts, gas storage materials, photovoltaic cell materials, and other products.
Molybdenum disulfide Chemical Properties
| Melting point | 2375 °C |
| density | 5.06 g/mL at 25 °C(lit.) |
| solubility | insoluble in H2O; soluble in concentrated acid solutions |
| form | powder |
| color | Gray to dark gray or black |
| Specific Gravity | 4.8 |
| Odor | odorless |
| Water Solubility | Soluble in hot sulfuric acid, and aquaregia. Insoluble in water, concentrated sulfuric acid and dilute acid. |
| Merck | 146236 |
| Boiling point | 100°C (water) |
| Exposure limits | ACGIH: TWA 10 mg/m3; TWA 3 mg/m3 |
| NIOSH: IDLH 5000 mg/m3 | |
| Stability: | Stable. Incompatible with oxidizing agents, acids. |
| InChIKey | CWQXQMHSOZUFJS-UHFFFAOYSA-N |
| CAS DataBase Reference | 1317-33-5(CAS DataBase Reference) |
| EPA Substance Registry System | Molybdenum sulfide (MoS2) (1317-33-5) |
| Bandgap | 1.23 eV |
| Electronic properties | 2D Semiconductor |
| Safety Statements | 22-24/25 |
| WGK Germany | - |
| RTECS | QA4697000 |
| TSCA | Yes |
| HS Code | 28309090 |
| Hazardous Substances Data | 1317-33-5(Hazardous Substances Data) |
| Toxicity | LC50 inhalation in rat: > 2820mg/m3/4H |
Product Application of Molybdenum Disulfide CAS#1317-33-5
Molybdenum disulfide is widely used in the automotive and mechanical industries and is an excellent solid lubricant. It provides outstanding lubricating performance for equipment operating under high or low temperatures, high loads, high speeds, chemical corrosion, and modern ultra-high-vacuum conditions.
Adding molybdenum disulfide to lubricating oils, greases, polytetrafluoroethylene, nylon, paraffin, and stearic acid can improve lubrication performance and reduce friction. It can also extend lubrication intervals, lower operating costs, and improve working conditions. In addition, molybdenum disulfide can be used as a release agent for non-ferrous metals and as a lubricant for forging dies.
