What is molybdenum disulfide?
The main composition of Molybdenite. Black solid powder with a metallic lustre. Chemical formula MoS2, melting point 2375 ℃, density 4.80g/cm3 (14 ℃), Mohs hardness 1.0-1.5. [1] Decomposition begins at 1370 ℃ and decomposes into metallic molybdenum and sulfur at 1600 ℃. When heated in air at 315 ℃, oxidation begins, and as the temperature increases, the oxidation reaction accelerates. Molybdenum disulfide is insoluble in water, dilute acids, and concentrated sulfuric acid, generally insoluble in other acids, alkalis, and organic solvents, but soluble in aqua regia and boiled concentrated sulfuric acid. Slow oxidation occurs at 400 ℃, generating molybdenum trioxide.
Preparation of molybdenum disulfide
Molybdenum disulfide has excellent performance and broad application prospects, so much research has been conducted on preparing and applying nano MoS2 domestically and internationally. MoS2 can be prepared by natural methods, namely the purification method of molybdenite concentrate. This method involves removing acid-insoluble substances, SiO2, Fe, Cu, Ca, Pb, and other impurities from high-quality molybdenum concentrate through specific physical and chemical reactions and further refining to obtain nano MoS2. Climax Molybdenum Company in the United States has adopted this method to produce MoS2. The nano MoS2 produced by this method can maintain the natural MoS2 crystal shape and has good lubrication performance, making it suitable for making lubricants. However, the purity of nano MoS2 produced by natural methods is low, and the purification technology still needs further improvement. When the temperature is below 400 ℃, it is recommended to use MoS2 with lower cost when working in ordinary atmospheres. It has lubrication ability below 1300 ℃, and it is recommended to use MoS2 at a lower price.
The Use of Molybdenum Disulfide
Molybdenum disulfide is an essential solid lubricant suitable for high temperatures and pressures. It also has diamagnetism, which can be used as a linear photoconductor and a semiconductor showing P or N-type conductivity, and has the function of rectification and energy conversion. Molybdenum disulfide can also be used as a catalyst for complex hydrocarbon dehydrogenation. It is also known as the "King of Advanced Solid Lubricants". Molybdenum disulfide is a solid powder made from natural molybdenum concentrate powder to change its molecular structure after chemical purification. This product is black with a slight silver-grey colour, metallic lustre and a smooth touch. It is insoluble in water. The product has the advantages of good dispersibility and non-adhesion. It can be added to various oils and fats to form a non-adhesive colloidal state, increasing the lubricity and extreme pressure of oils and fats. It is also suitable for high temperature, high pressure, high speed, and high load mechanical working conditions, extending the service life of the equipment.
Price of molybdenum disulfide
Molybdenum disulfide particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Molybdenum disulfide. A large amount of large amount will be lower. The Price of molybdenum disulfide is on our company's official website.
Molybdenum disulfide supplier
Mis-Asia is a reliable and high-quality global chemical material supplier and manufacturer. It has over 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including molybdenum disulfide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective molybdenum disulfide, you are welcome to contact us or inquire at any time.
