Introduction to Molybdenum Disulfide Pulver
Is a type of inorganic. MoS2, the main ingredient of molybdenite, is its chemical formula. It is a solid black powder with a metallic luster. The melting point is 2375, the density is 4.80g/cm3(14), and Mohs Hardness is 1.0 1.5.
Molybdenum disulfide decomposes at 1370, and then to molybdenum metallic and sulfur at 1600. Molybdenum sulfuric acid begins to oxidize when it is heated in air at 315. Molybdenum sulfide can’t be dissolved in water, dilute or concentrated sulfuric acids. At 400, slow oxidation takes place and molybdenum dioxide forms.
You can heat it to react with chlorine gas and form molybdenum pytachloride
Molybdenum disulfide reacts to alkyl-lipid under control to create an embedded compound (intercalated compounds) LixMoS2. It will react with butyllithium and form LiMoS2.
Copper has a high level of active sulfur. It is easy to cause copper to corrosion. This topic has been covered in many papers and books on lubricant ingredients. Additionally, when parts of copper or their alloys require lubrication it is not necessary that lubrication products contain molybdenum diulfide. However, you will need to add an anticopper corrosion agent.
Molybdenum Disulfide Pulp Powder’s Physical Chemistry
It is insoluble with water and dilute acids. It can be corroded easily by concentrated sulfuric, concentrated nitric, boiling concentrated chloric acid, aqua regia or pure oxygen, fluorine, or chlorine. It is insoluble with other bases, solvents and petroleum, as well as synthetic lubricants. It is non-magnetic and has semiconductor properties. Molybdenum dioxide mo-S edges are quite numerous, easy to peel among layers, and have good anisotropy. They have strong adhesion with metal, can adhere on the metal surface, and always play a role in lubrication. The lubricant molybdenum dioxide is high in compressive strength, wear resistance, excellent adhesion (0.03-10.08), film structures characteristics, and stable under high pressure. It can also be used under high temperatures (1200), low temperatures (-190), high speeds, high pressure, and ultra-low temperatures. At 400, molybdenum dioxide begins to oxidize and becomes molybdenumtrioxide. It rapidly oxidizes above 540 to become molybdenum dioxide. It was sublimated to 450 in an atmosphere of inertia, then decomposed at 1370. At 1600, it was decomposed into molybdenum et sulfur. By controlled reaction of alkyl lithium and molybdenum dioxide, it was formed into molybdenum penichloride. Low toxicity.
|Molybdenum Disulfide Powder Properties|
|Other Names||Molybdenum Disulfide (Molybdenum Sulfide), MoS2|
|Appearance||Solid in black/leadgray|
|Melting Point||2,375 degC (4,307 degF; 2,648 K)|
|Solubility of H2O||Insoluble|
Molybdenum Disulfide Pulver Preparation Methods
Molybdenum dioxide has many applications and great properties. Therefore, nano-mos2 preparation and application have been extensively studied both at home and abroad.
MoS2 can be prepared using the natural molybdenite concentration purification method. This method removes acid insoluble matter, SiO2, Fe Cu, Ca, Ca, and other impurities in molybdenite concentration after a certain physical and chemical activity and refines it to make nano-mos2. This is how the Us Climax Molybdenum firm produces MoS2. This method is capable of maintaining the MoS2 crystal form and good lubrication properties, making it suitable for making lubricants. The natural method produces nano MoS2 with a low purity, so further refinement of the purification technology is needed. If the temperature drops below 400 degrees it is recommended that you use a low-cost MoS2 for normal conditions. It is not possible to lubricate the MoS2 with a lower lubrication level than 1300.
The synthesis process can produce sulfide in high purity, with few impurities and fine particles, and can meet different functional requirements. This is why the synthesis procedure to make nano sulfide was so important. There are many ways to make nano-MOS2, including the thermal decomposition technique of ammonium triathiomolybdate and hydrogen sulfide reduction methods, high-energy ball grinding method, carbon nanotubes space-limiting method, hydrothermal synthesizing method, and high-energy physical or chemical means. Two preparation methods can be used to make nano-mos2: The tungsten source/molybdenum can be directly mixed with the source of sulfur, or the tungsten and molybdenum can be mixed with the source of sulfur to create the precursor body. Once the precursor is reduced or decomposed, the body can be reduced to MoS2 with appropriate methods.
Molybdenum Disulfide Powder – Applications
. Molybdenum-disulfide is used in most dry film lubricants (except for those that do not contain black fillers). Molybdenum-disulfide dry-film lubricants that are most commonly used are the United States military dry films MIL L-3987, and MIL L-23398. Dry film lubricant can be used to lubricate bearings, gears, and other civil products.
. Molybdenum sulfide ointment generally is added in oil and fats with a mass fraction around 4% molybdenum sulfide. It has been used successfully in the fields of metallurgy and steel rolling, as well as mining machinery and equipment for coal mining. Some high-temperature, open air, field, and tunnel application equipment makes it difficult to grease or supplement equipment.
Lubricating film-forming glue for wheels, rail, or gear
. The film-forming powder is widely used for lubricating the gear of locomotive drive shafts. You can extend the life of rail by applying film-forming paste to rail and rim. The life expectancy of the rim is 7 times longer and electricity or fuel is saved by around 7%.
Main supplier of Molybdenum Disulfide Pulver
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