Overview
Dodecyl alcohol ether is a class of nonionic surfactants derived from lauryl alcohol through ethoxylation. The degree of ethoxylation (n in the molecular formula) determines its hydrophilic-lipophilic balance (HLB) and specific applications. These compounds are particularly valued in industrial and consumer product formulations for their ability to reduce surface tension and stabilize emulsions. As a versatile chemical, dodecyl alcohol ether serves as a key ingredient in various cleaning and personal care products. Its properties can be fine-tuned by adjusting the number of ethylene oxide units, making it adaptable for different formulation requirements across multiple industries.
Physical and Chemical Properties
The physical state of dodecyl alcohol ether ranges from liquid to waxy solid depending on the degree of ethoxylation. Lower EO numbers (1-3) tend to be oily liquids, while higher EO numbers (above 10) form pastes or solids. The compound exhibits excellent compatibility with both water and oils, making it effective in various formulation systems. Chemically, dodecyl alcohol ether is stable under normal conditions but may degrade under strong acids or oxidizers. Its cloud point (the temperature at which it becomes insoluble in water) increases with higher ethoxylation degrees. This property is particularly important for formulators working with temperature-sensitive applications.
Main Applications
In the detergent industry, dodecyl alcohol ether serves as a primary surfactant in liquid laundry detergents, dishwashing liquids, and all-purpose cleaners. Its excellent degreasing properties make it particularly effective in hard surface cleaners. The textile industry utilizes it as a wetting and leveling agent in dyeing processes. The personal care sector incorporates dodecyl alcohol ether in shampoos, shower gels, and cosmetic formulations where mildness is required. Industrial applications include use in metal cleaning, pesticide formulations, and as an emulsifier in polymerization processes. The specific ethoxylation degree determines its suitability for each application.
Safety and Storage
While generally considered low in toxicity, dodecyl alcohol ether may cause mild skin or eye irritation upon prolonged contact. Appropriate personal protective equipment (PPE) including gloves and safety glasses should be used when handling concentrated forms. In case of contact, rinse thoroughly with water. Storage should be in original containers or approved chemical storage vessels, kept tightly closed in a cool, well-ventilated area away from incompatible materials. The product is stable under recommended storage conditions but may absorb moisture if exposed to humid environments. Shelf life typically exceeds two years when stored properly.
B2B Procurement Guide
When procuring dodecyl alcohol ether, buyers should clearly specify the required ethoxylation degree (EO number), which directly affects performance characteristics. Common variants include EO3, EO7, and EO9, each suited for different applications. Purity requirements should also be stated, typically ranging from 95% to 99%. Bulk procurement (drum or tanker quantities) generally offers better pricing, but storage capacity should be considered. Quality certifications such as ISO or GMP compliance may be required for certain applications. Lead times can vary depending on the specific grade and quantity, so forward planning is advisable. Technical support for formulation advice is often available from reputable suppliers.
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