Esters Available — Bulk Only

Lithium Stearate (Lithium Octadecanoate)

CAS 4485-12-5 · Formula C18H35LiO2 · MW 290.4 g/mol

The lithium soap that gels base oils into water-resistant, wide-temperature lubricating greases. It is used primarily as a thickener and gelling agent that converts oils into lithium-soap lubricating greases, and as a lubricant, mold-release, and stabilizing additive in plastics and coatings.

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HS Code
2915.70
At a Glance
Material Family
Esters
Record Type
Pure compound
Primary Role
Film Formation · Color / Pigmentation
Functional Roles
LITHIUM STEARATE
ANTICAKINGBINDINGOPACIFYINGVISCOSITY CONTROLLING
Applications & Use Cases
  • Grease thickener: Gels base oils into multipurpose lithium greases.
  • Lubricant: Internal and mold-release lubricant for plastics.
  • Stabilizer: Processing stabilizer and anticaking agent.
  • Coatings: Viscosity control and opacifying.
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2915 . 70
Chapter 29
Organic chemicals
Heading 29.15
Internationally harmonized (WCO HS)
Subheading 2915.70
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
4485-12-5
Molecular Formula
C18H35LiO2
Molecular Weight
290.4 g/mol
IUPAC Name
lithium octadecanoate
INCI Name
LITHIUM STEARATE
PubChem CID
InChI Key
HGPXWXLYXNVULB-UHFFFAOYSA-M
Synonyms & Trade Names
LITHIUM STEARATE Lithium octadecanoate AI3-19767 LITHIUM STEARATE [INCI] Stearic Acid Lithium Salt Octadecanoic acid, lithium salt Stearic acid, lithium salt lithium;octadecanoate C18H35LiO2 Lithalure Litholite
Full Description

Lithium stearate (CAS 4485-12-5) is the lithium salt of stearic acid. It is used primarily as a thickener and gelling agent that converts oils into lithium-soap lubricating greases, and as a lubricant, mold-release, and stabilizing additive in plastics and coatings.

Frequently Asked Questions

What is lithium stearate used for?

Lithium stearate (CAS 4485-12-5) is the lithium salt of stearic acid, used primarily as a thickener and gelling agent that converts base oils into lithium-soap multipurpose lubricating greases. It also serves as an internal and mold-release lubricant in plastics, a processing stabilizer and anticaking agent, and a viscosity/opacifying additive in coatings.

How does lithium stearate thicken grease?

Dispersed in base oil and processed under heat, lithium stearate forms a fibrous soap network that immobilizes the oil into a semi-solid grease structure. This lithium-soap thickening gives multipurpose greases their characteristic mechanical and thermal stability.

What is the molecular formula and CAS number of lithium stearate?

Lithium stearate has the formula C18H35LiO2 and carries CAS 4485-12-5. It classifies under HS code 2915.70 (palmitic acid, stearic acid, their salts and esters).

Is lithium stearate soluble in water?

Lithium stearate is a metallic soap with very low water solubility; it is oil-dispersible, which is the property that makes it effective as a grease thickener and as a lubricant additive in non-aqueous systems.

Does RawSource supply lithium stearate 306 powder in bulk?

RawSource distributes lithium stearate powder in bulk industrial quantities for grease, plastics, and coatings manufacturers. A Certificate of Analysis and Safety Data Sheet ship with each order; request both along with a bulk quote for your target volume.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.