Kemsurf OPA is an anionic surfactant created through the sulphonation of oleic acid along the double bonds. This distinctive molecule boasts an exceptionally rapid foam break within 30 seconds in high-agitation systems, leading to virtually eliminated foaming. At 25°C, it appears as a clear amber liquid, and its composition includes fatty acid sulphonate and potassium salt.

Chemical Name: 9-Octadecenoic acid (Z)-, sulfonated, potassium salts

CAS Number: 68609-93-8

Functions: Scouring Agent, Surfactant, Surfactant (Anionic)

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

Synonyms: 9-Octadecenoic acid (9Z)-, sulfonated, potassium salts

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Features & Benefits

HII Features
Industrial Additives Features

Applications & Uses

Applicable Processes
Home Care Applications
I&I Cleaning Applications

Kemsurf OPA is used in a wide range of applications such as:

  • I + I cleaning involving mechanical agitation
  • Machine dishwashing
  • Textile scouring
  • Emulsion polymerisation


Physical Form
Clear amber liquid (at 25°C)
Soluble in
Typical Properties
ValueUnitsTest Method / Conditions
Saponification Value72.0 - 78.0mg KOH/g-
pH (1% aqueous)5.0 - 6.5--
Solid Content50.0 - 55.0%-
Viscosity (at 25°C)241cP-
Pour Point-4.0°C-

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging Type
Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

Kemsurf OPA 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 OPA 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.