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Nonionic surfactant based on fatty alcohol ethoxylate with optimized hydrophilic-lipophilic balance (HLB ≈ 15.0) for superior emulsification and solubilization.
Excellent low-temperature stability and clarity in aqueous formulations, enabling year-round formulation flexibility.
Low foaming profile suitable for high-shear industrial cleaning and metalworking applications.
Biodegradable under OECD 301 standard, supporting sustainable product stewardship and regulatory compliance.
Compatible with electrolytes, acids, and common co-surfactants, enhancing formulation robustness in complex systems.
Industrial and institutional (I&I) hard-surface cleaners, including alkaline degreasers and sanitizing solutions.
Metalworking fluids—especially semi-synthetic and soluble oil concentrates requiring stable oil-in-water emulsions.
Agrochemical adjuvants for improving active ingredient dispersion and foliar retention.
Textile auxiliaries such as dyeing assistants and leveling agents in polyester and blended fabric processing.
Paint and coating additives for pigment wetting, defoaming support, and rheology control in waterborne systems.
| Chemical Type | Fatty alcohol ethoxylate (C12–C15, ~15 mol EO) |
| Product Form | Liquid |
| Appearance | Pale yellow to colorless, clear liquid at 25 °C |
| HLB Value | ≈ 15.0 |
| pH (1% aqueous solution, 20 °C) | 5.5 – 7.0 |
| Cloud Point (1% aqueous solution) | ≈ 78 °C |
| Solubility in Water | Completely miscible at room temperature |
| Key Features | Low foaming, high emulsifying power, good electrolyte tolerance |
Q1: What is the primary function of Lutensol FA 15T in industrial formulations?
A: Lutensol FA 15T is a nonionic surfactant based on fatty alcohol ethoxylate chemistry, primarily used as an emulsifier and solubilizer in water-based systems. It supports stable oil-in-water emulsions and enhances the dispersion of hydrophobic ingredients across diverse applications such as agrochemical concentrates, industrial cleaners, and functional coatings.
Q2: Is Lutensol FA 15T suitable for low-foaming applications?
A: Yes — due to its specific ethoxylation pattern and molecular architecture, Lutensol FA 15T exhibits inherently low foaming characteristics, making it well-suited for high-shear processes and applications where foam control is critical, such as in metalworking fluids or automated cleaning systems.
Q3: How does temperature affect the performance of Lutensol FA 15T?
A: As a nonionic surfactant, Lutensol FA 15T displays typical cloud point behavior — its solubility in water decreases with increasing temperature. Performance remains robust below its cloud point, but formulation stability at elevated temperatures should be verified experimentally, especially in hot-process applications.
Q4: Can Lutensol FA 15T be used in combination with ionic surfactants?
A: Yes — Lutensol FA 15T is generally compatible with anionic and cationic surfactants, enabling synergistic effects in mixed surfactant systems. However, compatibility and phase behavior should be assessed case-by-case, particularly in high-electrolyte or pH-extreme environments.
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