Surfactants
REACH
Octylphenol ethoxylate
CAS Number
9002-93-1
EC Number
618-344-0
What is Octylphenol ethoxylate?
Octylphenol ethoxylate (CAS 9002-93-1) is a nonionic surfactant used in industrial and institutional formulations. Also marketed as Triton X-100.
Where is Octylphenol ethoxylate used?
- Industrial and institutional cleaning: primary surfactant in hard surface cleaners, degreasers and metal cleaning formulations for oil and grease removal
- Textile processing: wetting and scouring agent for uniform dye penetration and fiber preparation
- Agriculture: emulsifier and spreading agent in pesticide and herbicide concentrates
- Coatings and adhesives: stabiliser of emulsion systems and substrate wetting control
- It improves active ingredient distribution on leaf surfaces.
Good to know: Triton X-100 corresponds to approximately 9–10 EO units; ethylene oxide content is typically expressed as the number of EO units.
Commercial specifications
- Ethylene oxide content typically expressed as number of EO units
- Triton X-100: approximately 9–10 EO units
- Drum and IBC packaging standard
Other Names (Synonyms)
Triton X-100|Poly(oxy-1,2-ethanediyl), α-[4-(1,1,3,3-tetramethylbutyl)phenyl]-ω-hydroxy-|Glycols, polyethylene, mono[p-(1,1,3,3-tetramethylbutyl)phenyl] ether|Phenol, p-(1,1,3,3-tetramethylbutyl)-, monoether with polyethylene glycol|Antarox A 200|(p-t-Octylphenoxy)polyethoxyethanol|Polyethylene glycol mono(4-tert-octylphenyl) ether
What are the physical properties of Octylphenol ethoxylate?
Melting Point >350 °C (decomp)
Boiling Point 270 °C
Density 1.07 g/cm³ (liquid)
Flash Point 535 °F
Appearance clear viscous liquid
Color ≤100(APHA)
Odor Odorless
Form Viscous Liquid
Water Solubility Miscible with water.
Vapor Pressure < 1.33 hPa at 20 °C
Refractive Index n 20/D 1.491
pH 6.5-8.5 (25℃)
Log P 4.610 (est)
Which trade and regulatory codes apply to Octylphenol ethoxylate?
HS Code 34021300
UN Number 3082
ADR Class 9
Packing Group III
Storage Class 10 - Combustible liquids
WGK (Germany) 3