Lithium stearate
Description
Lithium stearate (CAS 4485-12-5), also known as lithium soap, is a lithium-based metallic salt used as a thickener, lubricant, and stabilizer across industrial and personal care manufacturing.
Its ability to form stable grease structures and modify flow behavior makes it a preferred functional ingredient in demanding formulation environments. In lubricants, it is the primary thickening agent for lithium-based greases.
These greases dominate automotive and industrial bearing applications due to their high-temperature stability and water resistance. Plastics processors use it as an internal and external lubricant in PVC and other polymer systems.
This improves melt flow and prevents die buildup during extrusion. In personal care, it functions as an emulsifier and texture modifier in stick formulations such as deodorants and lipsticks, contributing to structural firmness.
It also acts as a stabilizer and release agent in rubber and polymer compounding. Lithium stearate is supplied as a white powder or fine granules for various manufacturing processes.
Standard commercial grades include technical and cosmetic-grade material, with purity levels typically ranging from 98% to 99%+. Specifications are aligned to industrial or personal care end-use requirements.
Bulk supply is available in bags or fiber drums to meet global logistics needs. The material maintains consistent performance across a wide range of thermal and mechanical conditions in industrial settings.
Physical Properties
| Melting Point | 216-217 °C |
| Density | 1.025 |
| Appearance | white powder |
| Color | White |
| Form | Powder |
| Water Solubility | Insoluble in water. |
| Log P | 8.216 (est) |
Trade & Regulatory
| HS Code | 29157090 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Documentation
Other Names
lithium soap|Lithium octadecanoate|P31MC94P70|AI3-19767|RefChem:153763|Octadecanoic acid, lithium salt (1:1)|Stearic acid, lithium salt
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