Overview
Polyoxyethylene Lauric Acid Amide is a versatile nonionic surfactant synthesized through the ethoxylation of lauric acid amide. This chemical compound belongs to the broader family of polyoxyethylene fatty acid amides, valued for their excellent surface-active properties. The degree of ethoxylation (n value) can be adjusted during production to achieve different HLB (Hydrophile-Lipophile Balance) values, making it suitable for various applications. Its molecular structure combines the hydrophobic lauric acid chain with hydrophilic polyoxyethylene groups, creating an effective balance for multiple industrial uses.
Physical and Chemical Properties
The physical state of Polyoxyethylene Lauric Acid Amide ranges from viscous liquid to semi-solid paste depending on the degree of ethoxylation. Products with lower ethoxylation degrees tend to be more viscous, while higher ethoxylation results in more water-soluble forms. Chemically, it demonstrates excellent stability across a wide pH range (3-11) and maintains good performance in hard water conditions. The surfactant shows reversible cloud point behavior in aqueous solutions, an important characteristic for formulation development. Its critical micelle concentration (CMC) varies with ethoxylation degree but typically falls in the range of 0.01-0.1 g/L.
Main Applications
In industrial cleaning formulations, Polyoxyethylene Lauric Acid Amide serves as a key component in heavy-duty degreasers and institutional cleaners due to its excellent oil-removing capabilities and low foam generation. The textile industry utilizes it as a scouring agent and dyeing assistant where its wetting and emulsifying properties prove valuable. The personal care sector incorporates this surfactant in shampoos, shower gels, and other cleansing products where mildness is required. Its ability to reduce interfacial tension between oil and water makes it particularly effective in emulsion systems. Additionally, it finds use in agricultural formulations as an adjuvant to improve pesticide spreading and adhesion.
Safety and Storage
While classified as a mild irritant, proper handling precautions should be observed with Polyoxyethylene Lauric Acid Amide. Concentrated forms may cause skin and eye irritation, necessitating the use of gloves and safety goggles during handling. Storage recommendations include keeping containers tightly sealed in cool, well-ventilated areas away from strong oxidizers. The material has good thermal stability but prolonged exposure to temperatures above 50°C should be avoided. Shelf life typically exceeds two years when stored properly, though viscosity changes may occur over extended periods.
B2B Procurement Guide
When sourcing Polyoxyethylene Lauric Acid Amide, buyers should clearly specify the required ethoxylation degree (commonly expressed as EO number or n value), which directly affects performance characteristics. Technical specifications should include pH range, moisture content, and appearance requirements. Quality verification can include tests for active matter content, cloud point, and HLB value. Bulk procurement (typically 1 metric ton or more) offers significant cost advantages. Lead times vary by supplier but generally range from 2-6 weeks for custom ethoxylation grades. Reputable manufacturers provide technical data sheets and may offer formulation support for specific applications.
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