What are the respective characteristics of Lithium Grease No. 3, molybdenum disulfide, and petrolatum? What are the differences in application scenarios?

Features and application areas of No. 3 lithium-based grease, molybdenum disulfide, and vaseline: No. 3 lithium-based grease: file:///C:/Users/SBB-CY~1/AppData/Local/Temp/ksohtml11972/wps1.jpg Composition: It is made from refined mineral oil thickened with lithium soaps of hydroxy fatty acids, and it contains additives such as molybdenum disulfide, antioxidants, and rust inhibitors; it can replace calcium-based and sodium-based greases. Feature 1: It has strong versatility, excellent mechanical and oxidative stability, as well as good resistance to water exposure and rust; it can be used in mechanical components that are exposed to humidity or in contact with water. Operating temperature: -20°C to 120°C. Lubrication of rolling bearings in general mechanical equipment. Comply with GB 7324-94 standard. Feature 2: Lithium-based greases, especially those thinned with lithium 12-hydroxystearate, exhibit soap fibers that form twisted, interwoven ribbons as visible under an electron microscope; as a result, they possess good mechanical stability. Application areas: It can replace calcium-based and sodium-based greases, and is used for lubricating bearings in aircraft, automobiles, tanks, machine tools, and various mechanical devices. Molybdenum disulfide: file:///C:/Users/SBB-CY~1/AppData/Local/Temp/ksohtml11972/wps2.jpg Composition: Molybdenum disulfide grease is a extreme-pressure grease made by using inorganic thickeners to thicken ester-based synthetic oils, and it also contains molybdenum disulfide as a solid lubricant, along with various additives such as those that provide antioxidant and anti-rust properties. Application areas: This high-temperature and high-pressure grease is designed for lubricating bearings and moving components in environments with high temperatures and high loads/shock loads, providing long-lasting protection against wear and rust. Applicable temperature range: -30～+350°C. Vaseline: file:///C:/Users/SBB-CY~1/AppData/Local/Temp/ksohtml11972/wps3.jpg Ingredients: The main component of Vaseline is glycerin. Vaseline is a type of high-molecular-weight hydrocarbon found in petroleum distillates. Vaseline is a semi-liquid mixture of aliphatic or saturated hydrocarbons, also known as petrolatum. Vaseline is a distillate of petroleum lubricants, a colorless, odorless, and transparent oily liquid obtained through thorough refining; it contains no additives, water, or mechanical impurities. It is soluble in organic solvents such as ether, chloroform, gasoline, and benzene, but insoluble in water. It possesses good chemical stability and antioxidant properties. Uses and functions: Vaseline is primarily used for anti-inflammatory effects, as well as to moisturize and protect the skin, providing hydration.

Molybdenum disulfide is generally used in high-temperature environments and cannot be used in areas where copper is present