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Nonionic alcohol ethoxylate with balanced hydrophilic-lipophilic character for versatile performance.
Excellent wetting, emulsifying, and dispersing properties in aqueous systems.
Good compatibility with anionic, cationic, and other nonionic surfactants.
Low foaming profile suitable for high-shear and industrial cleaning applications.
Biodegradable under aerobic conditions, supporting sustainable formulation design.
Industrial and institutional cleaners (I&I), including floor cleaners and degreasers.
Agrochemical formulations as adjuvant for herbicide and fungicide spray solutions.
Textile auxiliaries for scouring, dye leveling, and softening processes.
Paints and coatings as stabilizer and co-emulsifier in waterborne systems.
Home care products such as all-purpose cleaners and hard surface cleaners.
| Chemical Type | Alcohol ethoxylate (C13–C15 linear alcohols, avg. 7 EO units) |
| Product Form | Liquid |
| Appearance | Pale yellow to colorless, clear to slightly hazy liquid |
| pH (1% aqueous solution, 20 °C) | 5.5 – 7.0 |
| Cloud Point (1% aqueous solution) | Approx. 58–62 °C |
| Active Content (wt. %) | 99.0 – 101.0 |
| Saponification Value (mg KOH/g) | 38 – 42 |
| Primary Applications | Wetting agent, emulsifier, dispersant, detergent builder |
Q1: What is the primary function of Lutensol AO 7 in industrial formulations?
A: Lutensol AO 7 is a nonionic surfactant based on alkyl alcohol ethoxylate chemistry, primarily used for its excellent wetting, emulsifying, and solubilizing properties in aqueous systems. It supports stable dispersion of hydrophobic components and enhances surface activity in cleaning, agrochemical, and industrial maintenance applications.
Q2: Is Lutensol AO 7 suitable for low-foaming applications?
A: Yes — due to its moderate ethoxylation level and linear alkyl chain structure, Lutensol AO 7 delivers balanced foaming behavior and is often selected where controlled, transient foam is acceptable or where defoaming agents are used in combination. It is not classified as a high-foam or low-foam specialist, but performs reliably across mid-foam formulation needs.
Q3: How does temperature affect the performance of Lutensol AO 7 in solution?
A: As a typical AEO-type surfactant, Lutensol AO 7 exhibits a characteristic cloud point — it remains fully soluble and active below this temperature, but may undergo phase separation upon heating above it. Its cloud point typically falls within the range of 55–65 °C in pure water, making it well-suited for ambient- to warm-temperature processing conditions.
Q4: Can Lutensol AO 7 be used in combination with ionic surfactants?
A: Yes — Lutensol AO 7 is generally compatible with anionic and cationic surfactants in properly designed formulations, though interactions may influence micelle structure, viscosity, or stability. Compatibility should be verified experimentally under intended use conditions, particularly in high-electrolyte or extreme pH environments.
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