Properties of Fatty Alcohol Polyoxyethylene Ether

Dec 03, 2025 Hengxiang New Materials

Physical State and Appearance

Fatty alcohol polyoxyethylene ether typically exists as a viscous liquid ranging from pale yellow to colorless, or as a soft waxy solid depending on the degree of ethoxylation and the carbon chain length. The homogeneous texture and consistent color indicate high purity and chemical stability. Parameters such as melting point, density, and refractive index are routinely measured to ensure quality control. Its stable physical state makes it suitable for incorporation into detergents, personal care products, and chemical intermediates, where appearance and consistency are critical indicators of performance and integrity.

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Foaming Properties

1. Foam Formation

The surfactant exhibits strong foam formation, which is essential in personal care products such as shampoos, body washes, and hand soaps. The polyoxyethylene chain length and concentration directly influence the volume and texture of the foam.

2. Foam Stability

Foam stability depends on pH, temperature, and ionic strength of the solution. Stable foam ensures consistent cleaning performance and improves user experience. High-foaming variants are ideal for cosmetic applications, while low-foaming grades suit industrial cleaning systems where excessive foam can be problematic.

3. Foam Efficiency in Cleaning

The ability of the foam to retain air and maintain structure during cleaning enhances dirt removal efficiency and reduces chemical overuse, supporting eco-friendly and cost-effective formulations.

Solubility in Water and Organic Solvents

Fatty alcohol polyoxyethylene ether is highly soluble in water due to its hydrophilic polyoxyethylene groups. Solubility in organic solvents such as alcohols, glycols, and light hydrocarbons is influenced by the alkyl chain length. The hydrophilic-lipophilic balance (HLB) plays a key role in solubility, emulsification efficiency, and formulation stability. Its dual solubility supports oil-in-water and water-in-oil emulsions, enabling wide-ranging applications in cosmetics, industrial cleaning, and chemical processing.

Biodegradability for the Environment

1. Aerobic Biodegradation

Fatty alcohol polyoxyethylene ether undergoes rapid aerobic degradation, breaking down into non-toxic byproducts that minimize environmental accumulation.

2. Compliance with Biodegradability Standards

The compound meets OECD guidelines for biodegradability, ensuring it aligns with international environmental regulations.

3. Low Ecotoxicity

Low toxicity toward aquatic organisms makes this surfactant suitable for eco-friendly detergents, textile processing, and agricultural chemicals, supporting sustainable industrial applications.

4. Support for Corporate Sustainability

Its environmentally safe profile aids companies in achieving sustainability goals and regulatory compliance, ensuring responsible usage across large-scale production systems.

Compatibility with Other Surfactants

Fatty alcohol polyoxyethylene ether shows high compatibility with anionic, cationic, and nonionic surfactants, enhancing formulation flexibility. This allows synergistic effects in detergency, emulsification, and foaming, while maintaining chemical stability and preventing phase separation or precipitation. Its versatility is particularly valuable in large-scale production, enabling manufacturers to develop high-performance, reliable products across personal care, cleaning, and specialty chemical industries.