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Emulsifiers

Potassium stearate

Also known as Potassium octadecanoate, Octadecanoic acid, potassium salt, Potassium stearate, pure

CAS 593-29-3Formula C18H35KO2Molar mass 322.57 g/molEC 209-786-1
36 suppliers listed
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Potassium stearate chemical structure, C18H35KO2, CAS 593-29-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
593-29-3
Formula
C18H35KO2
Molar mass
322.57 g/mol
Physical form
Powder
HS code
291570
Category
Emulsifiers
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Potassium stearate?

Plain description, key identifiers and synonyms

Potassium stearate is a chemical substance with the molecular formula C18H35KO2 and a molar mass of 322.57 g/mol. Its CAS registry number is 593-29-3. The IUPAC name is potassium octadecanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
potassium octadecanoate
CAS number
593-29-3 CAS number cross-checked
EC number
209-786-1
Molecular formula
C18H35KO2
UNII
17V812XK50
MDL number
MFCD00072385
INCI name
POTASSIUM STEARATE
InChIKey
ANBFRLKBEIFNQU-UHFFFAOYSA-M
InChI
InChI=1S/C18H36O2.K/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/q;+1/p-1
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCCCC(=O)[O-].[K+]

Synonyms

  • Potassium octadecanoate
  • Octadecanoic acid, potassium salt
  • Potassium stearate, pure
  • Potassium n-octadecanoate
  • Rexanol
  • Nonsoul mk 2
  • e-470(I)stearic acid, potassium salt
  • Ins-470(I)stearic acid, potassium salt
  • Ins no.470(I)stearic acid, potassium salt
  • Stearic acid, potassium salt
  • Steadan 300
  • potassium, octadecanoate
  • Octadecanoicacid,potassiumsalt
  • Octadecanoic acid, potassium salt (1:1)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Powderexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
322.57 g/molcalc.
Exact mass
322.2274 Dacalc.
LogP (octanol/water)
2calc.
Topological polar surface area
40.13 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
16calc.
Heavy atoms
21calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.94calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Potassium stearate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 36 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

36 suppliers in 10 countries

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Potassium stearate price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Processing aids not otherwise specified, Lubricating agent, Dispersing agent, Anti-adhesive/cohesive.

Consumer uses: Lubricating agent, Anti-adhesive/cohesive.

Use classes: Surfactants, Safer Chemical Classes, Cosmetics.

Cosmetic ingredient, INCI name POTASSIUM STEARATE(cleansing, surfactant - emulsifying, surfactant - cleansing)

Functional uses

  • Biocide
  • Cleaning agent
  • Emulsifier
  • Hardener
  • Heat stabilizer
  • Lubricating agent
  • Processing aids not otherwise specified
  • Surfactant (surface active agent)
  • Thickening agent
  • Waterproofing agent
  • Wetting agent (non-aqueous)

Cosmetic functions

  • Cleansing
  • Surfactant - cleansing
  • Surfactant - emulsifying

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • Safer Choice ingredient list (USA)
  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Potassium stearate is traded under.

HS 2915.70Indicative HS code

Palmitic acid, stearic acid, their salts and esters

World exports in 2024
$1.25B
+23.7% vs 2023, imports $1.13B
2019 to 2024
Top exporters
  1. Indonesia32.2%
  2. Malaysia23.0%
  3. Singapore6.5%
Top importers
  1. United States10.7%
  2. Germany6.2%
  3. China5.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Potassium stearate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Potassium stearate, based on the data on this page

What is Potassium stearate?

Potassium stearate is a chemical substance with the molecular formula C18H35KO2 and a molar mass of 322.57 g/mol. Its CAS registry number is 593-29-3. The IUPAC name is potassium octadecanoate.

What is the CAS number of Potassium stearate?

The CAS registry number of Potassium stearate is 593-29-3.

What is the molecular formula and weight of Potassium stearate?

The molecular formula of Potassium stearate is C18H35KO2 and its molar mass is 322.57 g/mol.

What is Potassium stearate used for?

Industrial uses: Processing aids not otherwise specified, Lubricating agent, Dispersing agent, Anti-adhesive/cohesive. Consumer uses: Lubricating agent, Anti-adhesive/cohesive. Use classes: Surfactants, Safer Chemical Classes, Cosmetics.

Is Potassium stearate hazardous?

No GHS hazard classification for Potassium stearate is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Potassium stearate?

Potassium stearate is usually classified under HS code 291570 (Palmitic acid, stearic acid, their salts and esters). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Potassium stearate?

CompoundList lists 36 suppliers of Potassium stearate in China, India, United States, Bulgaria and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Potassium stearate in India?

9 suppliers in India list Potassium stearate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Potassium stearate?

Suppliers quote Potassium stearate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Potassium stearate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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