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By Trunnano | 19 April 2022 | 0 Comments

Introduction to Molybdenum Disulfide MoS2

Introduction to Molybdenum Disulfide Powder
Molybdenum disulfide is a kind of inorganic. The chemical formula is MoS2, which is the main component of molybdenite. It is a solid powder from lead gray to black, smooth on contact, odorless, belonging to a hexagonal or rhombic crystal system, similar to graphite, with a metallic luster.

Properties and Applications of Molybdenum Disulfide Powder
Molybdenum disulfide is insoluble in water, dilute acid, and concentrated sulfuric acid, generally insoluble in other acids, bases, and organic solvents, but soluble in aqua regia and boiled concentrated sulfuric acid.
Molybdenum disulfide is a good solid lubricating material, in high temperature, low temperature, high load, high speed, chemical corrosion, and modern ultra-vacuum conditions, the equipment has excellent lubricity. It can be used as a friction modifier (antifriction agent), anti-wear agent, extreme pressure agent, and antioxidant. It is widely used in the aviation industry (vacuum anti-radiation lubrication), automotive industry (fixers and components), anti-bite industry (machinery industry) (general lubrication), mining, military industry, shipbuilding, heavy industry, bearing industry, gear industry, and assembly industry, etc. It is also used as additives for various lubricants, manufacturing molybdenum compounds, catalytic hydrogenation desulfurization catalysts, gas storage materials, photocell materials, etc.
Molybdenum disulfide is an important solid lubricant, known as the "king of advanced solid lubricants", especially suitable for high temperature and high pressure. It also has diamagnetic, can be used as a linear photoconductor, and display p-type or n-type conductivity of semiconductors, with the role of rectification and energy conversion.  Molybdenum disulfide can also be used as a catalyst for the dehydrogenation of complex hydrocarbons. Molybdenum disulfide is a solid powder made by changing the molecular structure of natural molybdenum refined powder after chemical purification. This product is black silver-gray, has a metallic luster, greasy touch, insoluble in water. The product has the advantages of good dispersity and non-bonding. It can be added to all kinds of grease to form a non-bonding colloidal state and increase the lubricity and extreme pressure of grease. Also suitable for high temperature, high pressure, high speed, and high load of mechanical working state, prolong the life of the equipment. The main function of molybdenum disulfide for friction materials is to reduce friction at low temperatures, increase friction at high temperatures, small loss of combustion, and volatile in friction materials. 
Molybdenum Disulfide Powder Properties
Other Names Molybdenum Disulfide, Molybdenum Sulfide, MoS2
CAS No. 1317-33-5
Compound Formula MoS2
Molecular Weight 160.07g/mol
Appearance black/lead-gray solid
Melting Point 2,375 °C (4,307 °F; 2,648 K)
Boiling Point N/A
Density 5.06g/cm3
Solubility in H2O insoluble
Exact Mass N/A
Advantages and Disadvantages of Molybdenum Disulfide Powder
1, Can eliminate oil leakage. 
2, Can save a lot of lubricating greases. 
3, Can improve the operation of technical conditions, prolong the maintenance cycle, reduce the labor intensity of maintenance workers, saving labor. 
4. Due to the low friction coefficient of molybdenum disulfide, the friction resistance generated between friction equipment is small, which can save power consumption. According to the determination of brother units, electricity can be saved by 12% 
5, Can reduce mechanical wear, prolong the service life of friction equipment, reduce the loss of equipment parts, and improve the attendance of equipment. 
6, Molybdenum disulfide has the effect of filling, can restore the geometric size of some parts, and prolong the service life. 
7, Molybdenum disulfide has moisture-proof, waterproof, alkali, acid, and other characteristics. 
8, The application of molybdenum disulfide plastic or powder to smelting molding parts, can save a lot of non-ferrous metals. 
9, Some equipment using molybdenum disulfide lubrication, can cancel the complex oil supply system, greatly simplify the equipment structure, and relatively improve the utilization rate of the effective area, at the same time, will also cause a major reform in the design of equipment. 
10, molybdenum disulfide also has its shortcomings, such as poor thermal conductivity, the friction coefficient is not low enough, and permeability is not strong (compared with thin oil). These shortcomings are the main obstacles to further expanding the scope of use. 

Main Supplier of Molybdenum Disulfide Powder
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including molybdenum powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality molybdenum disulfide powder, please feel free to contact us and send an inquiry. ([email protected])


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