Molybdenum disulfide (MoS2) This solid lubricant is considered the “king of solids.”
Molybdenum diulfide, or molybdenum powder, is made from molybdenum concentrate that has been chemically purified. The product’s color is black, with a slight gray metallic luster. It feels slippery and is insoluble in any liquid. Molybdenum diulfide offers the benefits of being non-sticky, and having good dispersibility. It can also be added to greases in order to produce a non-sticky, colloidal state. This will increase the lubricity as well as the extreme pressure.

It is suitable for equipment that is subjected to high temperatures, pressures, speeds, and loads. Molybdenum Disulfide has the ability to increase friction and reduce friction when used at low temperatures, while reducing friction and friction at higher temperatures.

Molybdenum diulfide is used in a variety of ways as a good solid grease.
1. Lubrication in a wide temperature range: the lubricating oil or grease can be used from about 60degC until 350degC. The solid molybdenum lubricant has a temperature range from 270degC up to 1000degC.

2. Lubrication for heavy loads: The oil films of general lubricating ointments and greases are only capable of bearing relatively small load values. Once the load is exceeded, the oil film will rupture. The solid lubricating layer can support a load of 108Pa on average.

3. Lubrication for vacuum conditions. Under high vacuum, lubricating greases and oils are very evaporative. They can easily damage vacuum environments and impact the performance of other parts. Molybdenum diulfide solids lubricating material is used in most cases.
4. Lubrication during radiation: General liquid lubricants can lose their lubricating characteristics under radiation conditions. Solid lubricants offer better radiation resistance.

5. Lubrication of conductive surface: The friction between conductive surfaces like motor brushes, conductive slides, solar collector rings or sliding electrical contacts of artificial satellites that work in a vacuum can be made out of metal or carbon graphite.

6. Molybdenum disulfide is suitable for harsh environmental conditions. For example, transportation machinery, engineering equipment, metallurgical or steel industry institutions, mine machinery and other transmission components that are exposed to dust, sand and high temperature, as well as humidity and heat, Molybdenum diulfide can be used as a lubricant.

7. Corrosive Environments: Ship machinery, chemical machinery, and other transmissions parts working with corrosive mediums such as seawater, water (steam), acid, alkali, or salt must withstand varying degrees of chemical rust. Molybdenum Disulfide Solid can be used to lubricate the transmission parts that are working in such a situation.

8. The environment must be very clean. Transmission components in electronic, textile, food and medicine machines, as well as paper and printing equipment, need to remain contaminant-free. Solid lubricants such MoS2 can help with this.

9. Maintenance is not required in all cases: Some transmission components do not require maintenance. Others need to reduce maintenance frequency to save on costs. MoS2 solid greases are convenient and economical in these cases.

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Molybdenum disulfide The main component in molybdenite is powder, which has the chemical formula MoS2. It is a dark solid powder that has a metallic sheen.

What property does molybdenum disulfide have?

The powder of molybdenum is not soluble with water, dilute sulfuric acid or other acids. It’s also generally insoluble with alkalis and organic solvents. But it is soluble when heated to boiling concentration sulfuric acid.
It is easy for copper to be corroded by molybdenum powder, due to its high active sulfur content. In many books and articles on lubricant add-ons, it is mentioned. When parts made of copper alloys and copper need to be greased, it’s not impossible to use lubricants containing molybdenum sulfide, but you can also add copper corrosion inhibitors.

Where is molybdenum sulfide powder used?

Molybdenum diulfide is a very important solid lubricant. It is particularly suitable for use at high temperatures and under high pressure. It is diamagnetic and can be used to convert energy and as a semiconductor that shows P-type or a N-type conductivity. Molybdenum Disulfide may also be used to dehydrate complex hydrocarbons.

Molybdenum Disulfide Powder is also called the “king of advanced liquid lubricants.” Molybdenum powder is solid molybdenum that has been purified chemically and changed in molecular structure. This product is black, with a metallic sheen, and has a slight silver grey. It’s slippery to touch and not soluble in water. The product’s advantages are its good dispersibility, and that it is non-sticking. Addition of this product to other greases can form a nonsticky colloidal phase, increasing the lubricity as well as the extreme pressure. It is suitable for mechanical conditions with high temperatures, high pressures, high speeds and high loads.

Its main purpose in friction materials is reducing friction at low temperature, increasing friction at higher temperatures and having a small loss during ignition. It is volatile in friction materials.

In addition to this, molybdenum diulfide powder is also a potential new material in the manufacture of transistors. In comparison with graphene (also a 2-dimensional material), molybdenum diulfide is has an energy gap of 1.8eV. However, graphene lacks an energy gap. The application of molybdenum diulfide in nano-transistors is therefore very broad.

Tech Co., Ltd. is a professional molybdenum disulfide We have over 12 years’ experience in the research and development of chemical products. You can contact us for high quality molybdenum powder. Contact us Send an inquiry.