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Nonionic alcohol ethoxylate surfactant with balanced hydrophilic-lipophilic properties for versatile formulation performance.
Excellent wetting and emulsifying capabilities in both hard and soft water conditions.
Good low-temperature stability and compatibility with anionic, cationic, and other nonionic surfactants.
Biodegradable molecular structure aligned with EU Ecolabel and OECD 301 screening criteria.
Low foaming profile suitable for high-speed industrial cleaning and rinse-sensitive applications.
Industrial and institutional (I&I) hard-surface cleaners, including floor, glass, and metal degreasers.
Agrochemical adjuvants for improving pesticide solubilization and foliar spread.
Textile auxiliaries in dyeing and finishing processes, especially for polyester and blended fabrics.
Paint and coating additives enhancing pigment dispersion and substrate wetting.
Automotive care formulations such as pre-treatment cleaners and wax emulsifiers.
| Chemical Type | Alcohol ethoxylate (C13–C15, ~5 mol EO) |
| Product Form | Liquid |
| Appearance | Pale yellow to colorless, clear liquid |
| pH (1% aqueous solution, 20 °C) | 5.5–7.0 |
| Cloud Point (1% aqueous solution) | Approx. 48–52 °C |
| Active Content | 99–100 wt% |
| Free Alcohol Content | ≤ 1.0 wt% |
| Storage Stability | Stable ≥12 months at 5–30 °C in sealed container |
Q1: What is the primary function of Lutensol FA 5K in industrial formulations?
A: Lutensol FA 5K is a nonionic surfactant based on fatty alcohol ethoxylate chemistry, designed primarily for emulsification, solubilization, and stabilization in aqueous systems. It is especially valued for its low-foaming profile and good compatibility with electrolytes and other surfactants.
Q2: Is Lutensol FA 5K suitable for use in low-temperature applications?
A: Yes — due to its relatively low cloud point and favorable solubility characteristics, Lutensol FA 5K remains effective and stable in formulations operating at ambient to moderately low temperatures, making it appropriate for cold-process detergents and cleaning concentrates.
Q3: How does Lutensol FA 5K compare to higher-EO fatty alcohol ethoxylates in terms of foaming and wetting performance?
A: Compared to higher-EO analogues, Lutensol FA 5K delivers lower foam generation while maintaining effective surface wetting and substrate penetration — a balance particularly beneficial in industrial cleaning, metalworking fluids, and agrochemical adjuvant systems where excessive foam is operationally disruptive.
Q4: Can Lutensol FA 5K be used in formulations intended for indirect food contact applications?
A: Lutensol FA 5K is not specifically certified for direct or indirect food contact under major regulatory frameworks such as FDA 21 CFR or EU food contact legislation. Its suitability for such applications must be evaluated case-by-case, considering final formulation composition, processing conditions, and applicable local regulatory requirements.
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