Kemsurf SX85
Product Category: Anionics
Sodium Dodecyl Benzene Sulphonate (Sodium Dodecylbenzenesulfonate)
INCI Name: Sodium Dodecylbenzenesulfonate
Kemsurf SX85 is a high‑active anionic surfactant based on sodium dodecylbenzene sulphonate, supplied as an 85% active material. It provides excellent detergency, wetting power, and emulsification across a wide variety of aqueous and solvent‑based systems. Due to its strong surface‑active properties, Kemsurf SX85 is highly effective in removing
oily, particulate, and hydrophobic soils.
The product exhibits rapid foaming and good foam stability, making it suitable for both low‑ and high‑foaming formulations depending on use level and co‑surfactants selected. Kemsurf SX85 also offers good electrolyte tolerance and performs well in acidic, neutral, and alkaline environments.
Its versatility and robust cleaning efficiency make it widely used in detergents, industrial cleaners, emulsifiable concentrates, agrochemical formulations, and general-purpose surfactant systems requiring strong anionic character.
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Key Features
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High 85% active content, providing strong surfactant and wetting performance.
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Excellent wetting and water solubility, ideal for wettable powders and detergent systems.
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Versatile use across detergents, agrochemical powders, emulsion polymerisation, mortar plasticisation, and ore flotation.
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Applications
Kemsurf SX85 is used across a wide variety of industries due to its strong anionic surface‑active properties. Typical application areas include:
Wettable Powders in Agrochemicals
- Acts as a wetting and dispersing agent to ensure uniform distribution of active ingredients.
Household Detergents
- Provides excellent detergency and foaming for general cleaning formulations.
Industrial and Institutional (I&I) Detergents
- Effective for heavy‑duty cleaning, degreasing, and hard‑surface applications.
Emulsion Polymerisation
- Functions as a primary emulsifier for stable latex production.
Plasticiser in Mortar
- Improves workability and flow characteristics in construction materials.
Ore Flotation
- Enhances separation efficiency in mineral processing operations.
Air Entrainment in Concrete and Gypsum Board
- Helps introduce controlled air content for improved strength and performance.
Specification
Appearance at 25°C
Off white powder
SAM % (equivalent weight 348)
78.0 - 87.0
pH (1% aqueous)
9.0 - 11.0
Typical Properties
Composition
Sodium dodecyl benzene sulphonate
Physical form
Powder
Surface tension
34.45 mN/m
CAS
68411-30-3
Activity %
85
Solubility in water
Soluble
Odour
Odourless
Bulk density at 20°C
0.4 g/cm3
Biodegradability
Readily biodegradable
Foaming Characteristics - Scale based on the most powerful foaming agent on our range

Wetting draves 0.5g/l: Classed as medium to high

