Specialty Additives Available — Bulk Only

Triethanolamine Stearate (TEA-Stearate)

TEA
CAS 82009-17-4 · Formula C24H51NO5 · MW 433.7 g/mol

An amine-soap emulsifier that forms stable oil-in-water systems on neutralization. It is supplied as an anionic emulsifier for personal-care and industrial formulations.

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CAS Number
82009-17-4
Formula
C24H51NO5
Molecular Weight
433.7 g/mol
Material Family
Specialty Additives
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Biocidal Action · Preservation
Applications & Use Cases
  • Emulsifier: Anionic emulsifier for oil-in-water systems
  • Personal care: Emulsifying agent in creams and lotions
  • Formulation: Surface-active agent for emulsified products
Physical Properties
Melting Point
108 to 44 °C
Density
0.968
Solubility
< 1 mg/mL at 20 °C
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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Chemical Identity
CAS Number
82009-17-4
Molecular Formula
C24H51NO5
Molecular Weight
433.7 g/mol
IUPAC Name
octadecanoate;tris(2-hydroxyethyl)azanium
PubChem CID
InChI Key
ZHALDANPYXAMJF-UHFFFAOYSA-N
Synonyms & Trade Names
Triethanolamine stearate TEA-Stearate octadecanoate;tris(2-hydroxyethyl)azanium Stearic acid, triethanolamine soap Triethanolamine, stearic acid salt Octadecanoic acid, triethanolamine salt Stearic acid, compound with 2,2',2''-nitrilotriethanol (1:1) tris(2-hydroxyethyl)ammonium stearate octadecanoic acid, compd. with 2,2',2''-nitrilotris(ethanol)(1:1)
Full Description

Triethanolamine stearate (TEA-stearate; INCI Triethanolamine Stearate; CAS 82009-17-4) is an anionic self-emulsifying surfactant — the triethanolamine salt of stearic acid (a soap). It is the classic oil-in-water emulsifier behind smooth, creamy lotions and creams, and it also serves as an emulsifier and dispersant in polishes, waxes and industrial emulsions. It can be supplied pre-formed or generated in situ from stearic acid and triethanolamine.

What is triethanolamine stearate?

It is the amine soap formed when stearic acid reacts with triethanolamine (TEA). The result is an anionic surfactant that lowers interfacial tension and stabilizes oil-in-water emulsions, producing the smooth, glossy, easily spread creams and lotions that TEA-stearate is known for. Many formulators generate it in place by including stearic acid and TEA in the formula; a pre-formed grade is also used.

Applications by sector

Personal care. A primary oil-in-water emulsifier for creams, lotions, foundations and vanishing-cream bases, giving smooth, stable, pearly-to-glossy emulsions. Polishes & waxes. An emulsifier for wax and oil emulsions in floor, furniture and car polishes. Industrial. An emulsifier and dispersant in metalworking, textile and coating emulsions. Match the emulsifier and the oil/water ratio to the emulsion you need.

Forms and grades

Supplied as a waxy solid/paste (pre-formed) or generated in situ from stearic acid and TEA; confirm form and grade on the RFQ. Related emulsifier: glyceryl monooleate.

Handling and documentation

TEA-stearate solutions are alkaline; handle per the current Safety Data Sheet (SDS). Each lot ships with a Certificate of Analysis (CoA).

Bulk supply and RFQ

RawSource supplies triethanolamine stearate (and the TEA and stearic acid to make it in situ) in bulk, with CoA and SDS per lot. Submit an RFQ with your form and target quantity. See also beauty & personal care.

Typical Properties

Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.

Property Typical Value
INCI Name Triethanolamine Stearate
CAS Number 82009-17-4 (TEA: 102-71-6)
Chemical type Anionic surfactant — triethanolamine salt of stearic acid (amine soap)
Appearance Waxy solid / paste
Function O/W emulsifier, dispersant
Solubility Disperses in water (alkaline)
Handling Alkaline — refer to the current SDS

Frequently Asked Questions

What is triethanolamine stearate used for?

Triethanolamine stearate (TEA-stearate, CAS 82009-17-4) is an anionic oil-in-water emulsifier used to make smooth, stable creams and lotions, and to emulsify oil/wax systems in polishes, waxes and industrial emulsions.

How does TEA-stearate emulsify?

It is the amine soap of stearic acid and triethanolamine; the anionic head and fatty tail sit at the oil/water interface and stabilize an oil-in-water emulsion. It is often generated in situ by including stearic acid and TEA in the formula.

What is the CAS of triethanolamine stearate?

The TEA-stearate salt is CAS 82009-17-4; triethanolamine itself is CAS 102-71-6. The CoA documents the grade.

How is bulk triethanolamine stearate supplied and quoted?

RawSource supplies it as a pre-formed grade, and supplies the triethanolamine and stearic acid to make it in situ, in bulk with CoA and SDS per lot. Submit an RFQ with your form and target quantity.

Disclaimer. Information on this page — including chemical 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). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase 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.

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.