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4485-12-5 Usage


Lithium stearate is a white powder that is slightly soluble in water and ethanol, with a solubility of 0.09 g/100ml in water and 0.04 g/100ml in ethanol. It is insoluble in ethyl acetate and mineral oil but forms colloids in mineral oil. When encountering strong acid, it decomposes into stearic acid and the corresponding lithium salt. Lithium stearate is a lithium salt of stearic acid (LiC18H35O2) and is known for its lubricating properties.


Used in Lubricants Industry:
Lithium stearate is used as a thickener and gelling agent to prepare oils into lubricating greases. It is the active component of lithium grease, which is preferred due to its cleansing and scavenging action during sintering.
Used in Automotive, Aircraft, and Heavy Machinery Industry:
Lithium stearate is used as a general-purpose lubricating grease, providing high resistance to water and being useful at both high and low temperatures. It has found extensive applications in the automotive, aircraft, and heavy machinery industries.
Used in Plastics and Rubber Products:
Lithium stearate is used as a lubricant and lubricant additive in the plastics and rubber industries, where it serves as a processing aid during filled elastomer part production.
Used in Stabilizing Agents for the Plastics Industry:
In addition to its lubricating properties, lithium stearate is also used as a stabilizing agent in the plastics industry, contributing to the overall performance and quality of the final products.


Lithium Stearate is prepared by the reaction of lithium hydroxide with stearic acid (cooking tallow or other animal fat).Synthesis Step: Dissolve 10 g of stearic acid in 100 mL of 95% ethanol, titrate with 0.5 mol/L lithium hydroxide ethanol solution, and use phenolphthalein as an indicator. After the reaction reaches the equivalence point, the precipitated lithium stearate soap is filtered out. The crude product can be recrystallized with 95% ethanol to obtain pure product.

Safety Profile

Low toxicity by ingestion. Warning: This substance is spontaneously combustible. When heated to decomposition it emits toxic vapors of lithum.

Check Digit Verification of cas no

The CAS Registry Mumber 4485-12-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,8 and 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4485-12:
95 % 10 = 5
So 4485-12-5 is a valid CAS Registry Number.

4485-12-5 Well-known Company Product Price

  • Brand
  • (Code)Product description
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  • Alfa Aesar

  • (39335)  Lithium stearate   

  • 4485-12-5

  • 250g

  • 525.0CNY

  • Detail
  • Alfa Aesar

  • (39335)  Lithium stearate   

  • 4485-12-5

  • 1kg

  • 1212.0CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017


1.1 GHS Product identifier

Product name Lithium Stearate

1.2 Other means of identification

Product number -
Other names lithium,octadecanoate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Lubricants and lubricant additives,Processing aids, not otherwise listed
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4485-12-5 SDS

4485-12-5Synthetic route

stearic acid

stearic acid

lithium stearate

lithium stearate

With lithium hydroxide In water at 75℃;
lithium stearate

lithium stearate



With 9-borabicyclo[3.3.1]nonane dimer In tetrahydrofuran for 1h; Ambient temperature;99%

4485-12-5Upstream product

4485-12-5Downstream Products

4485-12-5Relevant articles and documents

Cation-controlled crystal growth of silver stearate: Cryo-TEM investigation of lithium vs sodium stearate

Dong, Jingshan,McCormick, Alon V.,Davis, H. Ted,Whitcomb, David R.

experimental part, p. 2263 - 2267 (2010/11/18)

Cryo-TEM, SAXS, and light microscopy techniques were used to probe the morphology and kinetics of silver stearate self-assembly and crystallization from the reaction of silver nitrate with lithium stearate. Unlike the reaction of sodium stearate with silver nitrate, which proceeds via micelle aggregation, the lithium stearate forms vesicles that drastically change the reaction kinetics of the silver stearate nucleation and self-assembly process. In addition, even with excess silver nitrate present, only about 80% of the lithium stearate can be converted to silver stearate. The presence of the residual lithium stearate inhibits the silver stearate crystal growth process. Consequently, no silver stearate micelle aggregates of any significant size form, unlike the system utilizing sodium stearate. Instead, significantly smaller silver stearate crystals result from lithium stearate compared to the silver stearate crystals from sodium stearate and provide an opportunity to further control silver stearate self-assembly and crystal growth.

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