Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Solvay Soprophor FLK Tristyrylphenol Ethoxylate Phosphate Ester Surfactant

Solvay’s Soprophor FLK is a tristyrylphenol ethoxylate phosphate ester surfactant offering exceptional emulsification, wetting and detergency in industrial cleaning and agrochemical formulations. Its branched hydrophobic tail ensures high stability in hard water and low-foaming performance. Widely used as a nonionic-anionic hybrid for enhanced compatibility and efficiency across diverse pH and temperature ranges.
  • solvay soprophor flk tristyrylphenol ethoxylate phosphate ester surfactant_c9df88df
  • solvay soprophor flk tristyrylphenol ethoxylate phosphate ester surfactant_c9df88df

Features Of Solvay Soprophor FLK Tristyrylphenol Ethoxylate Phosphate Ester Surfactant

  1. Highly effective emulsifier for oil-in-water systems with excellent stability across broad pH and electrolyte ranges.

  2. Superior wetting and dispersing performance on hydrophobic substrates, including pigments and fillers.

  3. Low foaming characteristic suitable for high-shear industrial cleaning and metalworking fluid formulations.

  4. Good biodegradability profile compared to traditional alkylphenol ethoxylates (APEOs), supporting sustainable formulation goals.

  5. Thermally stable up to 80 °C, enabling compatibility with hot-process applications such as textile scouring and industrial degreasing.

Typical Applications Of Solvay Soprophor FLK Tristyrylphenol Ethoxylate Phosphate Ester Surfactant

  1. Metalworking fluids – used as emulsifier and stabilizer in soluble oils and semi-synthetic coolants.

  2. Industrial cleaning formulations – key component in heavy-duty alkaline cleaners for automotive and aerospace parts.

  3. Pigment dispersion systems – enhances stabilization in solvent-based coatings and inks.

  4. Textile auxiliaries – employed in scouring and desizing baths for polyester/cotton blends.

  5. Agrochemical adjuvants – improves solubilization and foliar spread of active ingredients in EC and SC formulations.

Specifications Of Solvay Soprophor FLK Tristyrylphenol Ethoxylate Phosphate Ester Surfactant

Chemical TypeTristyrylphenol ethoxylate phosphate ester
Product FormViscous amber liquid
AppearanceClear to slightly hazy, light brown liquid
pH (1% aqueous solution)5.5–7.0
SolubilityWater-miscible; forms clear solutions at ambient temperature
Active Matter Content≥90% (by weight)
Storage StabilityStable for ≥24 months at 5–30 °C in original sealed container
Primary ApplicationsEmulsification, wetting, dispersion, and stabilization in industrial and specialty formulations


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