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Nonionic ethoxylated alcohol surfactant with excellent low-temperature solubility and cloud point control.
High foaming capacity combined with good foam stability in hard water conditions.
Outstanding emulsification performance for hydrophobic actives and oils in aqueous systems.
Low irritation profile and favorable ecotoxicological properties, supporting sustainable formulation design.
Good compatibility with anionic, cationic, and amphoteric surfactants across broad pH ranges.
Household liquid detergents and all-purpose cleaners.
Industrial and institutional (I&I) cleaning formulations.
Agrochemical adjuvants for pesticide emulsifiable concentrates (EC) and suspension concentrates (SC).
Personal care cleansing products including shampoos and body washes.
Textile auxiliaries for scouring and wetting applications.
| Chemical Type | Nonionic – Alcohol Ethoxylate (C13–C15 linear alcohol, ~40 EO units) |
| Product Form | Clear to slightly opalescent viscous liquid |
| Appearance | Pale yellow to amber liquid at 25 °C |
| pH (1% aqueous solution) | 5.5–7.0 |
| Active Content (w/w %) | ≈99.0–100.0% |
| Cloud Point (1% aqueous solution) | ≈65–70 °C |
| Solubility in Water | Freely soluble at room temperature |
| Primary Applications | Cleaning, Emulsification, Wetting, Foaming |
Q1: What is the primary chemical nature of Lutensol XL 40?
A: Lutensol XL 40 is a nonionic surfactant based on ethoxylated linear alcohols, featuring a balanced hydrophilic-lipophilic structure optimized for emulsification and solubilization in aqueous systems.
Q2: In which types of industrial cleaning formulations is Lutensol XL 40 most commonly applied?
A: It is widely used in low-foaming, high-efficiency alkaline and neutral industrial cleaners—particularly for metal parts cleaning, CIP (clean-in-place) solutions, and hard-surface cleaners where stable emulsification of oils and greases is required at elevated temperatures.
Q3: How does Lutensol XL 40 perform in hard water conditions?
A: As a nonionic surfactant, Lutensol XL 40 maintains good performance and stability in hard water, with minimal sensitivity to calcium and magnesium ions—making it suitable for formulations intended for use in variable water quality environments.
Q4: Is Lutensol XL 40 compatible with common anionic and cationic surfactants?
A: It demonstrates broad compatibility with many anionic surfactants (e.g., LAS, AES) and certain amphoteric or nonionic co-surfactants. However, direct combination with strongly cationic species may lead to reduced efficacy or precipitation, so compatibility testing in the final formulation is recommended.
Q5: What is the typical dosage range for Lutensol XL 40 in cleaning concentrates?
A: Dosage depends on formulation requirements and soil type, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in ready-to-use or diluted cleaning solutions.
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