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Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Give us a call +86-755-2543 2352
Email us info@urbanmines.com
Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Molybdenum disulfide (MoS2) is a dry solid lubricant powder, commonly referred to as molybdenite, which is the primary ore from which molybdenum metal is extracted. MoS2 exhibits superior lubrication properties in inert atmospheres and under high vacuum conditions where conventional lubricants are ineffective. It also possesses extreme pressure lubrication capabilities, withstanding pressures up to 250,000 p.s.i., making it highly effective for applications such as cold metal forming.
The ore, after crushing and dressing processes, has impurities removed and is granulated into fine powders. UrbanMines offers MoS2 products in various particle sizes ranging from 1 to 30 microns, including nano-grade materials, or can be customized according to specific requirements.
Molybdenum disulfide
| Other names | Molybdenum(IV) sulfide |
| CAS Number | 1317-33-5 |
| Chemical formula | MoS2 |
| Molar mass | 160.07 g·mol |
| Appearance | black/lead-gray solid |
| Density | 5.06 g/cm3 |
| Density | 2,375 °C (4,307 °F; 2,648 K) |
| Solubility in water | insoluble |
| Solubility | decomposed by aqua regia, hot sulfuric acid, nitric acid |
| insoluble in dilute acids |
Molybdenum disulfide (MoS2), commonly referred to as moly, is an inorganic compound consisting of molybdenum and sulfur. This compound exhibits insolubility in water and dilute acids. Its crystal structure adopts a hexagonal lamellar form, analogous to that of graphite, boron nitride, and tungsten disulfide. Additionally, MoS2 possesses superior film-forming characteristics and serves as an exceptional lubricant in moisture-free environments at temperatures below 400°C.
High Quality Molybdenum Disulfide Powder Specification
| MoS2≥ (%) | Foreign Mat.≤ (%) | Field of application | |||||||||
| Acid insoluble matter | MoO3 | SiO2 | Fe | Carbon | Water | Oil | Acid number | Particle Size (D50) | |||
| UMMD99LG | 99.00 | 0.05 | 0.10 | 0.10 | 0.30 | 0.10 | 0.20 | 16-30 | Semiconductor industry, molybdenum disulfide targets, battery industry, carbon brush industry, molybdenum disulfide coating, etc | ||
| UMMD99TG | 99.00 | 0.05 | 0.10 | 0.10 | 0.30 | 0.10 | 0.20 | 12-16 | |||
| UMMD99TF | 99.00 | 0.10 | 0.10 | 0.10 | 0.30 | 0.10 | 0.20 | 3-6 | |||
| UMMD99SF | 99.00 | 0.15 | 0.10 | 0.10 | 0.30 | 0.10 | 0.20 | 1-1.5 | |||
| UMMD985PR1 | 98.50 | 0.50 | 0.05 | 0.20 | 0.50 | as requirement | Used as a professional additive in fluorine plastics industry to improve the lubrication performance of plastics, suitable for nylon, PTFE and so on | ||||
| UMMD985PR2 | 98.50 | 0.50 | 0.10 | 0.20 | 0.50 | as requirement | |||||
| UMMD98LG | 98.00 | 0.50 | 0.05 | 0.10 | 0.25 | 0.50 | 0.10 | 0.40 | 0.50 | 16-30 | Lubricants under wide temperature conditions, lubricating films under heavy load conditions, lubricating materials under vacuum conditions, lubricants under radiation conditions, lubricating composite materials on conductive sliding surfaces, solid lubricants under corrosive conditions. |
| UMMD98TG | 98.00 | 0.50 | 0.05 | 0.10 | 0.25 | 0.50 | 0.10 | 0.40 | 0.50 | 12-16 | |
| UMMD98TF | 98.00 | 0.50 | 0.10 | 0.10 | 0.25 | 0.50 | 0.10 | 0.40 | 0.50 | 3-6 | |
| UMMD98SF | 98.00 | 0.50 | 0.15 | 0.10 | 0.25 | 0.50 | 0.15 | 0.40 | 2.00 | 1-1.5 | |
What is Molybdenum disulfide used for?
Lubricant
Due tLubricant: Owing to the weak van der Waals interactions between the layers of sulfide atoms, MoS2 exhibits a low coefficient of friction. When incorporated into materials such as sintered metals, brake components, friction materials, plastics, and rubbers, MoS2 aims to enhance wear resistance and stabilize the coefficient of friction. MoS2 is extensively utilized as a dry lubricant additive in greases, oils, polymers, paints, and various coatings. Particles of MoS2 within the size range of 1–100 μm are commonly employed as an effective dry lubricant. Few alternatives can match its high lubricity and stability at temperatures up to 350 °C in oxidizing environments.
Catalysis
Catalysis with MoS2 is utilized as a co-catalyst for desulfurization processes in petrochemistry, notably hydrodesulfurization. The catalytic performance of MoS2 can be significantly improved through the incorporation of trace amounts of cobalt or nickel. A catalyst serves not only to accelerate chemical reactions but also to guide them toward specific desired products, such as oxygenated organic compounds rather than carbon dioxide and water. Molybdenum disulfide, an electronically tunable catalytic material, necessitates precise adjustment of its electronic structure to enhance its intrinsic hydrogen evolution reaction (HER) activity.
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