Stearic Acid Series

Potassium Oleate CAS 143-18-0

Item No.: Tr- Potassium Oleate
Potassium oleate, another name is Potassium cis-9-octadecenoate. The chemical formula is C18H33KO2. Potassium oleate is a brown solid or a transparent amber liquid. It is fatty acid potassium found in natural soaps.
Potassium Oleate Properties

Product name: Potassium Oleate

CAS NO. 143-18-0

Molecular formula: C18H33O2K

About Potassium Oleate:
Potassium oleate belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Potassium oleate is a weakly acidic compound (based on its pKa).
Due to the different quality of potassium oleate products, potassium oleate solution (potassium oleate content is less than 30%) is a colorless to light yellow viscous liquid, and pasty potassium oleate (potassium oleate content is 50%) is light yellow to light brown viscous silk liquid, paste potassium oleate (potassium oleate content is 70%-92%) is light yellow soft paste solid and potassium oleate particles (potassium oleate content is higher than 95%) are light yellow powder particles.
Potassium Oleate is a natural constituent of vegetable oils like sunflower oil. It is used in soapmaking to make vegetable glycerin soaps. In its pure form, it can be an irritant, however, in soap making it is reduced down and is approved as food safe when it is used as a binding ingredient. Feel free to send an inquiry to get the latest price if you would like to buy Potassium oleate in bulk. Potassium Oleate "may be safely used in the food and in the manufacture of food components" as long as it is used as "a binder, emulsifier and anti-caking agent. Potassium Oleate can also be used as a cleansing agent in household cleaning products.

How is Potassium Oleate produced?
Potassium salts of fatty acids are produced by adding potassium hydroxide to fatty acids found in animal fats and in plant oils. Fatty acids are extracted from palm, coconut, olive, castor, and cottonseed plants to form this active ingredient.
The saponification method can be used to produce potassium oleate. It is prepared by saponifying butter, mutton and other fats with potassium hydroxide, salting out and separating glycerin.


Application of Potassium Oleate:

Potassium oleate is a potassium catalyst and a trimerization a catalyst for polyurethane rigid polyisocyanurate. It is widely used in polyurethane insulation board PIR foam system. In addition, potassium oleate is also widely used in rubber emulsifiers, foaming agents, release agents, detergents, lubricants, fiber softeners and surfactants. Potassium Oleate is used as an emulsifier in many liquid soaps, facial cleansers, mustache waxes, body washes and hair permanents. Emulsifiers act like surfactants and reduce the surface tension of a liquid. Potassium Oleate prevents the ingredients in these products from separating into separate chemicals.


Technical Data of Potassium Oleate:

Testing item

Testing standard


white or light yellow powder

acid value


iodine value


free alkali, %


loss on drying, %


content(in dry), %


water solubility test , 10%


ethyl alcohol solubility test , 5%



Packing & Shipping of Potassium Oleate:
We have many different kinds of packing which depends on the potassium oleate quantity.
Potassium oleate packing: 25kg/bag, or as your request.
Potassium oleate shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

Potassium Oleate Properties

Other Names Oleic acid potassium salt
CAS No. 143-18-0
Compound Formula C18H33KO2
Molecular Weight 320.55
Appearance White Powder
Melting Point N/A
Boiling Point N/A
Density N/A
Solubility in H2O N/A
Exact Mass 320.211762
Monoisotopic Mass 320.211762

Potassium Oleate Health & Safety Information

Signal Word Warning
Hazard Statements H315-H319-H335-H400
Hazard Codes Xi
Risk Codes 36/37/38
Safety Statements 26
Transport Information UN 3077 9 / PGIII
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