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Chemical compound
Potassium stearate is a metal-organic compound, a salt of potassium and stearic acid with the chemical formula C18H35KO2. The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.
Synthesis.
Potassium stearate may be prepared by saturating a hot alcoholic solution of stearic acid with alcoholic potash.
Physical properties.
The compound forms colorless crystals.
Slightly soluble in cold water, soluble in hot water, ethanol, insoluble in ether, chloroform, carbon disulfide. 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.
Hazards.
Causes skin irritation and serious eye irritation.
References.
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