Kemsurf EM9 is an AEP-free alcohol ether sulfate. Primarily used as a performance substitute for Nonyl Phenol Ether Sulfates in emulsion polymerization systems, Kemsurf EM9 finds application in various areas. Its versatility extends to being a foam stabilizer in liquid detergents, a primary detergent and foaming agent in industrial and institutional cleaning formulations, a general foaming agent, a dispersing agent, and an emulsion polymerization component.

CAS Number: 68585-34-2

Functions: Detergent, Dispersant, Emulsifier, Foam Stabilizer, Foaming Agent, Surfactant, Surfactant (Anionic)

Chemical Family: Alkyl Ether Sulfates

Certifications & Compliance: ISO 14001, ISO 45001, ISO 9001

Applicable Processes: Emulsion Polymerization, Styrene Acrylic Manufacturing

Synonyms: Alcohol ethoxysulfate (Sodium Salt)

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Chemical Family
Industrial Additives Functions

Features & Benefits

Applications & Uses


Kemsurf EM9 is an excellent emulsifier for emulsion polymerization for systems such as, Styrene - Acrylic.


Physical Form
Pale straw liquid free from foreign matter
Soluble in
Typical Properties
ValueUnitsTest Method / Conditions
Critical Micelle Concentration131mg/L-
Flash Pointmin. 100°COpen Cup
Pour Pointmax. 0°C-
Specific Gravity (at 20°C)1.05--
Surface Tension (at 0.1% aqueous)58.9mN/m-
Viscosity (at 25°C)38.4cP-
ValueUnitsTest Method / Conditions
pH (10% aqueous)7.0 - 9.0--
S-Adenosyl Methionine Content28.0 - 31.0%-

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

Kemsurf EM9 can be supplied in bulk road tankers, IBC’s and 200kg nett drums.

Storage & Handling

Storage Conditions

Stainless steel, polyethylene or glass lined equipment is necessary for the storage of Kemsurf EM9 in order to prevent corrosion and subsequent contamination. This material can separate on standing and at low temperatures. May require agitation and warming prior to use.