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  • Product Name:Potassium oleate
  • Molecular Formula:C18H33KO2
  • Molecular Weight:320.557
  • Appearance:brown solid or clear to amber liquid

Product Details

pd_meltingpoint:235 - 240oC

Appearance:brown solid or clear to amber liquid


Hot selling High Quality Potassium oleate 143-18-0

  • Molecular Formula:C18H33KO2
  • Molecular Weight:320.557
  • Appearance/Colour:brown solid or clear to amber liquid 
  • Vapor Pressure:3.7E-06mmHg at 25°C 
  • Melting Point:235 - 240oC 
  • Boiling Point:360 °C at 760 mmHg 
  • Flash Point:270.1 °C 
  • PSA:40.13000 
  • Density:>1.1 g/cm3 
  • LogP:4.77380 

Potassium oleate(Cas 143-18-0) Usage

Chemical Properties

Gray-tan paste. Soluble in water and alcohol. Combustible.


Potassium Oleate is the potassium salt of oleic acid. it is used as a binder, emulsifier, and anticaking agent.

General Description

Brown solid or clear to amber liquid with a soapy odor. Sinks and mixes slowly with water.

Air & Water Reactions

Water soluble. Gives basic aqueous solution.

Reactivity Profile

Salts, basic, such as OLEIC ACID, [POTASSIUM SALT], are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.

Health Hazard

Inhalation of dust causes irritation of nose and throat, coughing, and sneezing. Ingestion causes mild irritation of mouth and stomach. Contact with eyes causes irritation.

Fire Hazard

Special Hazards of Combustion Products: Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.

Safety Profile

An eye irritant. When heated to decomposition it emits toxic fumes of K2O.

Purification Methods

Recrystallise it from EtOH (1g/mL). [Beilstein 2 H 465, 2 I 196, 2 I 202, 2 II 436, 2 III 1404, 2 IV 1646.]

Who Evaluation

Evaluation year: 1988


143-18-0 Relevant articles

Potassium Bromide Surface Passivation on CsPbI3-xBrx Nanocrystals for Efficient and Stable Pure Red Perovskite Light-Emitting Diodes

Yang, Jun-Nan,Song, Yang,Yao, Ji-Song,Wang, Kun-Hua,Wang, Jing-Jing,Zhu, Bai-Sheng,Yao, Ming-Ming,Rahman, Sami Ur,Lan, Yi-Feng,Fan, Feng-Jia,Yao, Hong-Bin

, p. 2956 - 2967 (2020)

All-inorganic lead halide perovskite nan...

Interaction kinetics of liposome-incorporated unsaturated fatty acids with fatty acid-binding protein 3 by surface plasmon resonance

Tan, Maria Carmen,Matsuoka, Shigeru,Ano, Hikaru,Ishida, Hanako,Hirose, Mika,Sato, Fuminori,Sugiyama, Shigeru,Murata, Michio

, p. 1804 - 1808 (2014)

The role of heart-type fatty acid-bindin...

Fatty acid potassium had beneficial bactericidal effects and removed Staphylococcus aureus biofilms while exhibiting reduced cytotoxicity towards mouse fibroblasts and human keratinocytes

Kawahara, Takayoshi,Takita, Miki,Masunaga, Akihiro,Morita, Hayato,Tsukatani, Tadayuki,Nakazawa, Kohji,Go, Daisuke,Akita, Sadanori

, (2019/03/29)

Wounds frequently become infected or con...

Continuous preparation method of metal fatty acid salt


Paragraph 0092; 0093; 0094; 0095, (2019/04/04)

The invention relates to a continuous pr...

143-18-0 Process route

diethyl ether

diethyl ether



oleic acid ; compound of potassium oleate with oleic acid

oleic acid ; compound of potassium oleate with oleic acid

cis-Octadecenoic acid

cis-Octadecenoic acid

potassium oleate

potassium oleate

Conditions Yield
cis-Octadecenoic acid

cis-Octadecenoic acid

potassium oleate

potassium oleate

Conditions Yield
With potassium hydroxide; In methanol;
With potassium hydroxide; at 80 ℃; pH=10.4;
With potassium hydroxide; In methanol; at 65 ℃; for 0.000833333h; Industrial scale;
With potassium acetate; at 80 ℃; for 0.5h;

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