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Description
Palmitamide MEA (Palmitamide Monoethanolamine) is a nonionic fatty acid alkanolamide produced by the condensation of palmitic acid with monoethanolamine (MEA). It is widely utilized as a foam stabilizer, viscosity enhancer, emulsifier, opacifying agent, and conditioning additive in personal care products, household detergents, industrial cleaning formulations, and specialty chemical applications. Due to its long hydrophobic alkyl chain and polar amide group, Palmitamide MEA effectively improves the rheological properties of surfactant systems while contributing to rich, stable foam and enhanced cleansing performance.
In cosmetic formulations, Palmitamide MEA is especially valued for its ability to produce luxurious foam, improve product consistency, and reduce the irritation potential of primary surfactants. It is commonly incorporated into shampoos, liquid soaps, facial cleansers, body washes, shaving products, and mild cleansing systems. In industrial applications, it enhances detergent efficiency and contributes to the stability of emulsified products.
Because Palmitamide MEA is derived from naturally occurring fatty acids, it is considered an effective multifunctional ingredient capable of improving both the aesthetic and functional characteristics of numerous formulations.
CAS Number
CAS Number: 142-78-9
Synonyms
Physical Properties
Palmitamide MEA is generally supplied as a white to pale yellow waxy solid, flakes, pellets, or beads depending on the manufacturing process. The material possesses a mild fatty odor and exhibits excellent thickening capability when dispersed in surfactant systems.
Typical characteristics include:
Its long hydrocarbon chain contributes to excellent conditioning performance while simultaneously enhancing foam stability.
Chemical Properties
Palmitamide MEA belongs to the fatty acid alkanolamide family and contains both hydrophobic and hydrophilic functional groups. The molecule consists of a sixteen-carbon saturated fatty acid chain attached to a monoethanolamide group through an amide linkage.
Chemically, it exhibits:
The amide functional group contributes hydrogen bonding capability, which enhances viscosity and foam stabilization within aqueous surfactant systems.
Manufacturing Process
Palmitamide MEA is manufactured through a controlled condensation reaction between purified palmitic acid (or its methyl ester) and monoethanolamine under elevated temperatures.
Typical manufacturing steps include:
Strict temperature control is maintained throughout production to minimize by-product formation and achieve high product purity.
Mechanism of Action
Palmitamide MEA functions primarily by interacting with surfactant micelles.
Its hydrophobic alkyl chain inserts into surfactant aggregates while the hydrophilic amide group remains associated with the aqueous phase. This interaction promotes larger and more stable micellar structures, increasing solution viscosity and improving foam persistence.
Within cleansing formulations, Palmitamide MEA contributes to:
The molecule also contributes to improved sensory characteristics by producing a smoother and richer foam texture.
Applications
Palmitamide MEA is extensively employed in various industries.
Personal Care Products
Cosmetic Products
Household Products
Industrial Applications
