Potassium stearate explained

Potassium stearate is a metal-organic compound, a salt of potassium and stearic acid with the chemical formula . The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.^{[1] [2]}

Synthesis

Potassium stearate may be prepared by saturating a hot alcoholic solution of stearic acid with alcoholic potash.^[3]

Physical properties

The compound forms colorless crystals.

Slightly soluble in cold water, soluble in hot water, ethanol, insoluble in ether, chloroform, carbon disulfide.^[4] A component of liquid soap.

Uses

The compound is primarily used as an emulsifier in cosmetics and in food products. It is also used as a cleansing ingredient and lubricant.^{[5] [6]}

Hazards

Causes skin irritation and serious eye irritation.^[7]

Notes and References

1. Web site: potassium stearate . paulaschoice-eu.com . 7 March 2023 . en.
2. Web site: Potassium Stearate . Cosmetics Info . 7 March 2023.
3. Book: Allen . Alfred Henry . Commercial Organic Analysis: Being a Treatise on the Properties, Proximate Analytical Examination, and Modes of Assaying the Various Organic Chemicals and Preparations Employed in the Arts, Manufactures, Medicine, &c. With Concise Methods for the Detection and Determination of Their Impurities, Adulterations, and Products of Decomposition. ... . 1886 . P. Biakiston & Son . 230 . 7 March 2023 . en.
4. Web site: Potassium Stearate . Silver Fern Chemical Inc. . 7 March 2023.
5. Web site: Potassium Stearate OPK-1000 . Hallstar BPC . 7 March 2023.
6. Web site: potassium stearate Paula's Choice . . 7 March 2023.
7. Web site: Potassium Stearate . . 7 March 2023.