Lithium Stearate
Lithium Octadecanoate, Stearic Acid Lithium Salt.
- CAS
- 4485-12-5
- EC
- 224-772-5
- Sectors
- Lubricants & Metalworking, Plastics & Polymers
Lithium Stearate (CAS 4485-12-5) is a metallic soap supplied as a white powder, a lithium salt of stearic acid that is used as the primary thickening agent for multi-purpose automotive and industrial greases and as an internal lubricant and heat stabilizer for nylon and other engineering plastics. Our High-Purity Grade is specifically designed for the manufacture of high-performance lubricating greases.
Unlike other metallic soaps, it maintains its structural integrity at high operating temperatures, preventing the breakdown of lubricants in heavy-duty machinery. It features a fine particle size, allowing for easy dispersion in both mineral and synthetic base oils.
In the polymer industry, it serves as a highly effective internal lubricant and heat stabilizer for specialized plastics. Its unique chemical properties provide a low coefficient of friction, making it indispensable for high-precision manufacturing and automotive components.
Typical Properties
| Molecular formula | C18H36O2.Li |
|---|---|
| Molecular weight | 290.41 g/mol |
| Appearance | white powder |
| Form | Powder |
| Color | White |
| Melting point | 216-217 °C |
| Density | 1.025 |
| Water solubility | Insoluble in water. |
| HS code | 29157090 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Lithium Stearate
Applications
- Lithium Greases: The primary thickening agent for multi-purpose automotive and industrial greases, offering high-temperature durability.
- Plastic Processing: Acts as a lubricant and stabilizer for nylon and other engineering plastics during high-temperature extrusion.
- Powder Metallurgy: Used as a lubricant in the pressing of metal powders to ensure uniform density and easy part release.
Safety & Risks
Classified as a non-hazardous solid; however, dust may cause mechanical irritation. Always use safety glasses, protective gloves, and avoid dust accumulation to minimize inhalation risks.
Packaging
20 kg or 25 kg Multi-layer Paper Bags.