Lanspec OF 65 is an ammonium-neutralized alkyl ether sulfate crafted for situations demanding heightened foaming characteristics, especially in the presence of elevated levels of electrolytes and polyvalent metal ions. With robust stability in alkaline solutions at moderate temperatures, Lanspec OF65 is well-suited for such environments. It's important to note that, akin to its counterparts, this product undergoes hydrolysis in acidic solutions.

Functions: Surfactant, Surfactant (Anionic)

End Uses: Brine Solutions, Electrolytes

Applicable Processes: Drilling Applications

Features: Good Foaming, High Alkali Stability

Technical Data Sheet

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Identification & Functionality

Industrial Additives Functions

Features & Benefits

Industrial Additives Features

Applications & Uses

Applicable Processes
Industrial Additives End Use

Lanspec OF 65 finds applications in a range industries due to it’s key properties which include:
Key Properties:

  • High foaming surfactant
  • Effective foaming agent for electrolyte solutions e.g. brine, seawater
  • High foaming in the presence of polyvalent ions e.g. calcium magnesium
  • Good foam stability in the presence of hydrocarbons
  • Easily dilutable in cold water


  • General purpose foaming agent
  • Oilfield foam drilling
  • Gas well deliquification


Physical Form
Yellowish liquid, Pale yellow liquid (at 25°C)
Soluble in
Water (at 20°C)
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 20°C)90cP-
pH (10% aqueous)7.0 - 8.5--
Specific Gravity (at 20°C)1.03--
Pour Pointmax. - 15°C-
Flash Point28°CClosed Cup
Viscosity (at 25°C, #4, 10rpm)5000 - 15000mPa.sMA143LFE
Solid Content72 - 76%MA145LFE
pH (at 20°C)3.5 - 5.5-MA148LFE
ValueUnitsTest Method / Conditions
S-Adenosyl Methionine Content (Eq. Wt. 374)64.0 - 66.0%-
pH (5% aqueous)6.0 - 7.5--

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

Lanspec OF 65 can be supplied in bulk road tankers, IBC’s and 200kg nett drums.

Storage & Handling

Shelf Life
6 months
Storage Conditions

Stainless steel, polyethylene or glass lined equipment is necessary for the storage of Lanspec OF65 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.