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Highly effective anionic surfactant based on alkyl naphthalene sulfonates with excellent wetting and penetrating properties.
Provides superior dispersion stability in aqueous systems containing pigments, fillers, or insoluble active ingredients.
Offers good compatibility with a broad range of ionic and non-ionic surfactants, polymers, and electrolytes.
Delivers low foaming behavior—ideal for high-shear industrial cleaning and formulation processes.
Exhibits robust performance across wide pH ranges (pH 4–12) and elevated temperatures up to 80 °C.
Industrial and institutional (I&I) hard-surface cleaners, including floor, tile, and metal degreasers.
Agrochemical formulations such as suspension concentrates (SC), emulsifiable concentrates (EC), and wettable granules (WG).
Pigment dispersants in architectural and industrial coatings, especially for carbon black and inorganic oxide pigments.
Processing aids in ceramic glazes and tile adhesives to improve rheology and particle deagglomeration.
Functional additive in textile auxiliaries for dye leveling and wetting during scouring and bleaching.
| Chemical Type | Alkyl naphthalene sulfonate (ANS) |
| Product Form | Aqueous solution (~45% active content) |
| Appearance | Clear to slightly hazy, light amber liquid |
| pH (1% aqueous solution, 20 °C) | 6.5–8.0 |
| Density (20 °C) | 1.12–1.16 g/cm³ |
| Solubility | Completely miscible with water; soluble in polar organic solvents (e.g., glycol ethers) |
| Key Features | Wetting, dispersion, low foaming, electrolyte tolerance |
| Primary Applications | Agrochemicals, I&I cleaners, coatings, ceramics, textiles |
Q1: What is the primary function of Lutensit AN45 in formulations?
A: Lutensit AN45 is an amphoteric surfactant designed to provide mildness, foam stabilization, and viscosity enhancement—particularly in aqueous personal care and household cleaning systems. It functions effectively across a broad pH range and supports synergy with anionic and nonionic surfactants.
Q2: Is Lutensit AN45 suitable for sulfate-free or low-irritancy product claims?
A: Yes, Lutensit AN45 is commonly used in sulfate-free, gentle, and skin-friendly formulations due to its amphoteric nature and favorable irritation profile. It helps reduce the harshness of primary anionic surfactants without compromising cleansing or foaming performance.
Q3: How should Lutensit AN45 be incorporated into a formulation?
A: It is typically added during the aqueous phase at ambient to moderate temperatures (below 60 °C) and is fully water-soluble. For optimal performance, it is recommended to add after primary anionics but before heat-sensitive or pH-sensitive ingredients. Pre-dilution may improve uniform dispersion in viscous systems.
Q4: Does Lutensit AN45 offer any conditioning or anti-static benefits?
A: Yes—its amphoteric structure imparts mild conditioning properties to hair and skin, and it can help reduce static charge buildup in rinse-off applications. While not a primary conditioning agent, it contributes to improved sensory attributes and surface feel when combined with other actives.
Q5: What are typical dosage levels for Lutensit AN45 in finished products?
A: Dosage depends on formulation requirements, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight—to achieve desired foam, viscosity, and mildness effects without over-stabilizing or increasing formulation complexity.
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