Kemsurf EM9
Product Category: Anionics
Sodium Laureth-12 Sulphate (Sodium Laureth-12 Sulfate)
INCI Name: Dodecylbenzenesulfonic Acid
Kemsurf EM9 is an anionic surfactant based on sodium laureth sulphate (high ethoxylation), supplied as an aqueous solution. It provides effective detergency, wetting, and emulsification, making it suitable for a broad range of industrial and cleaning formulations.
Kemsurf EM9 delivers reliable foaming performance and good surface activity, enabling efficient removal of oily, particulate, and hydrophobic soils. Its chemical structure offers good stability in a range of formulation conditions, supporting consistent performance in both domestic and industrial applications.
The product is compatible with a wide range of surfactant systems and is particularly suited to applications requiring effective emulsification and cleaning performance combined with manageable foam characteristics. It performs well in mildly alkaline environments but, as with other ether sulphates, may hydrolyse under strongly acidic conditions.
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Key Features
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Effective detergency and emulsification - Provides strong cleaning performance with excellent capability to remove oily, particulate, and hydrophobic soils in a wide range of formulations.
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Reliable foaming with balanced performance - Delivers consistent foam generation and stability while maintaining good wetting and surface activity for both industrial and personal‑care applications.
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Stable and versatile anionic surfactant - Offers good compatibility across formulation systems and performs well in mildly alkaline conditions, with reliable stability in typical cleaning environments.
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Applications
Kemsurf EM9 is used in a wide range of industrial, household, and personal‑care applications, including:
Household Detergents
– Provides effective cleaning and emulsification in liquid and powder detergent formulations, supporting the removal of grease, oils, and particulate soils.
Personal Care Formulations
– Used as a primary surfactant in shampoos, shower gels, and liquid hand soaps, delivering reliable foam and cleansing performance.
Industrial & Institutional Cleaning
– Suitable for hard surface cleaners and general cleaning products where good detergency, wetting, and formulation stability are required.
Laundry Applications
– Used in liquid laundry detergents and fabric cleaning systems, particularly where effective emulsification and soil removal are needed.
Emulsion Polymerisation
– Kemsurf EM9 is an excellent emulsifier for polymer systems, helping maintain stable dispersions and consistent particle formation. Applicable for systems such as:
Styrene – Acrylic
Hard Surface Cleaners
– Enhances wetting and soil removal for cleaning a range of surfaces in both domestic and industrial environments.
Specification
Appearance at 25°C
Pale straw liquid free from foreign matter
SAM %
28.0 - 31.0
pH (10% aqueous)
7.0 - 9.0
Typical Properties
Composition
Sodium lauryl ether (12 EO) sulphate
Viscosity at 25°C (cP)
38.4
Pour point °C
<0
Surface tension at 0.1% aqueous (mN/m)
58.9
CAS number
68585-34-2
Specific gravity at 20°C
1.05
Flash point open cup °C
>100
Odour
Characteristic
Solubility in water
Soluble
CMC (mg/l)
131
