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Nonionic alcohol ethoxylate with balanced hydrophilic-lipophilic balance (HLB ≈ 10.5) for versatile performance in diverse formulations.
Excellent wetting and emulsifying properties, especially effective in hard water and across broad pH ranges.
Low foaming profile suitable for industrial cleaning, metalworking, and high-speed processing applications.
Good biodegradability and favorable ecotoxicological profile aligned with EU Ecolabel and OECD 301 screening criteria.
Thermally stable liquid at room temperature with low volatility and minimal odor—ideal for closed-loop and continuous processes.
Industrial and institutional (I&I) hard-surface cleaners, including floor, glass, and stainless-steel cleaners.
Metal cleaning and degreasing formulations for automotive and aerospace pre-treatment lines.
Agrochemical adjuvants enhancing spray droplet spreading and active ingredient uptake on waxy leaf surfaces.
Textile auxiliaries for scouring, dye leveling, and low-foam rinsing in continuous jet dyeing systems.
Paint and coating additives for pigment dispersion stabilization and viscosity control in waterborne systems.
| Chemical Type | Linear primary alcohol ethoxylate (C13–C15, avg. 4 EO units) |
| Product Form | Clear to slightly opalescent viscous liquid |
| Appearance | Pale yellow to colorless, homogeneous liquid at 20 °C |
| pH (1% aqueous solution, 20 °C) | 5.5 – 7.0 |
| Cloud Point (1% aqueous solution) | ≈ 68 – 72 °C |
| Active Content (wt. %) | 99.0 – 100.0% |
| Density (20 °C) | 0.97 – 0.99 g/cm³ |
| Viscosity (20 °C) | 150 – 350 mPa·s |
Q1: What is the primary chemical nature of Lutensol A 4N?
A: Lutensol A 4N is a nonionic surfactant based on alkylphenol ethoxylate chemistry, specifically derived from nonylphenol and approximately four units of ethylene oxide. It exhibits good water solubility, emulsifying capacity, and stability in mildly alkaline to neutral systems.
Q2: In which types of industrial cleaning formulations is Lutensol A 4N commonly used?
A: It is frequently employed in aqueous industrial and institutional cleaners—especially for metal degreasing, hard-surface cleaning, and pre-treatment baths—where balanced wetting, soil suspension, and compatibility with builders and other surfactants are required.
Q3: How does Lutensol A 4N perform in hard water conditions?
A: As a nonionic surfactant, Lutensol A 4N maintains effective performance in hard water without precipitation or significant loss of activity, making it suitable for formulations intended for use in regions with variable water quality.
Q4: Is Lutensol A 4N compatible with anionic and cationic surfactants?
A: It shows good compatibility with many anionic surfactants in typical cleaning formulations, though direct blending with cationic species should be evaluated case by case due to potential interactions that may affect clarity or performance.
Q5: What is the typical dosage range for Lutensol A 4N in finished formulations?
A: Dosage depends on formulation requirements and application intensity, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—in aqueous cleaning concentrates and ready-to-use products.
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