Molybdenum disulfide is used as a dry lubricant in, e.g. greases, dispersions, friction materials and bonded coatings. Molybdenum-sulfur complexes may be used in suspension but more commonly dissolved in lubricating oils at concentrations of a few percent.
What does molybdenum do for grease?
Molybdenum Disulfide, simply known as Moly, is used both independently as a dry lubricant and as an additive in lubricating greases. Dry lubricants reduce friction between two sliding surfaces without the need for an oil medium.Jul 7, 2020
What is molybdenum disulfide grease?
Molybdenum Disulphide Grease is a multipurpose grease with MoS2 for Constant-Velocity (homokinetic) joints. It is based on mineral base oils, lithium soap thickener and molybdenum disulphide. The latter forms a chemical layer on metal surfaces which reduces friction to a minimum.
Where is MoS2 found?
Molybdenum disulfide [molybdenum(IV) sulfide, MoS2] is an inorganic compound that exists in nature in the mineral molybdenite. Its crystals have a hexagonal layered structure (shown) that is similar to graphite.
What is molybdenum disulfide used for?
Molybdenum disulfide is used traditionally in greases for bit lubrication . In addition, polymers of 2-methylpropene (i.e., isobutene) and metal soaps are used to formulate synthetic greases [7]. A viscosity of 600-750 c P at 120 °C is desirable.
What is molybdenum coating used for?
Molybdenum Disulfide Coatings (MoS2 coatings), also known as Moly Coatings are commonly used in applications where load carrying capacity, operating pressure and coefficient of friction are primary concerns. This coating provides effective lubrication in a wide range of loads, in many cases exceeding 250,000 psi.
Is molybdenum poisonous or hazardous?
Effects of Exposure: Molybdenum compounds are poison by subcutaneous and intraperitoneal routes. Molybdenum and its compounds are highly toxic based upon animal experiments. Symptoms of acute poisoning include severe gastrointestinal irritation with diarrhea, coma, and deaths from heart failure.
Is molybdenum disulfide grease toxic?
Ingestion: Swallowing may cause gastrointestinal irritation, nausea, vomiting, diarrhea. Chronic Hazards: Prolonged inhalation of thermal decomposition products may result in lung damage. Carcinogen Status: None of the components of this product are listed as carcinogens by IARC, NTP or OSHA.
Is molybdenum disulfide corrosive?
Molybdenum Disulfide is a dry film lubricant and is widely used as a friction-reducing additive to coatings, greases and waxes. Because the compound is unreactive to most corrosive agents, MoS2 is widely used in corrosion management.
What is molybdenum disulfide coating?
A Molybdenum Disulfide coating (also known as Molybdenum Disulphide, MoS2, and Moly) is one of the most commonly used solid film lubricants in applications where load carrying capacity, operating pressure, and/or coefficient of friction are primary concerns.