Lansurf AE312W-9 is a nonionic surfactant derived from the ethylene oxide reaction on a synthetic primary alcohol. This clear liquid, soluble in water at 25°C, demonstrates excellent emulsification, detergency, and wetting properties. Marketed for industrial use, it finds applications in chemical manufacturing.

Functions: Emulsifier, Surfactant, Surfactant (Nonionic)

Chemical Family: Alcohol Ethoxylates

Applicable Processes: Acrylic Acid Manufacturing, Acrylic Ester Manufacturing, Emulsion Polymerization, Styrene Acrylic Manufacturing, Styrene Homopolymer Polymerization, Vinyl Acetate - Acrylic Polymerization, Vinyl Acetate Homopolymer Polymerization

Features: Good Emulsification Properties, Good Wetting Properties, High Detergency

Synonyms: Alcohols, C11-14-isoalcs., C13-rich, ethoxylated

Technical Data Sheet

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Identification & Functionality

Chemical Family
Industrial Additives Functions

Features & Benefits

Labeling Claims

Applications & Uses


Lansurf AE312W-9 is an excellent emulsifier for emulsion polymerization for systems such as:

  • Vinyl Acetate - Homopolymer
  • Vinyl Acetate - Acrylic
  • Styrene - Homopolymer
  • Styrene - Acrylic
  • Acrylic Monomers - Esters and Acids


Physical Form
Clear liquid free from foreign matter (at 25°C)
Soluble in
Typical Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 150°C-
Hydrophilic-Lyphophilic Balance Value14.5--
Moles of Ethylene Oxide12--
Pour Pointmax. 15°C-
Specific Gravity (at 20°C)1.04--
Surface Tension (at 0.1% aqueous)31mN/m-
Viscosity (at 25°C)56.7cP-
ValueUnitsTest Method / Conditions
Cloud Point (1% aqueous)84.0 - 90.0°C-
pH (5% aqueous)5.0 - 8.0--
Solid Content88 - 92%-

Packaging & Availability

Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

Lansurf AE312W-9 can be supplied in bulk road tankers, IBC’s, 200kg or 25kg nett drums.

Storage & Handling

Storage Conditions
  • Stainless steel, polyethylene or glass lined equipment is necessary for the storage of Lansurf AE312W-9 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.