Oleth-50

CAS Number
9004-98-2

What is Oleth-50?

Oleth-50 (CAS 9004-98-2) is a high-ethoxylation oleyl alcohol ethoxylate produced by reacting oleyl alcohol with approximately 50 moles of ethylene oxide. Also known as polyethylene glycol oleyl ether.

Where is Oleth-50 used?

  • Personal care: stabilizes oil-in-water emulsions in creams and lotions, contributing a smooth, non-greasy texture
  • Textile processing: emulsifier and lubricant in fiber finishing baths, aiding dye dispersion and improving fabric handle
  • Metalworking fluids: stabilizes emulsifiable cutting oil concentrates, keeping oil droplets uniformly dispersed
  • Leather treatment: carrier and emulsifying agent for even penetration of fatliquoring compounds during tanning
  • With its high HLB value it functions as a nonionic emulsifier, solubilizer and rheology modifier in aqueous systems.

Good to know: Effective under high-dilution conditions common in industrial settings.

Commercial specifications

  • Standard commercial grades for industrial and cosmetic applications
  • Cosmetic-grade material meets general purity expectations for personal care use
  • Packaging in drums or IBCs for bulk industrial supply

Other Names (Synonyms)

polyethylene glycol oleyl ether|poly(oxy-1,2-ethanediyl), α-9-(Z)-octadecenyl-ω-hydroxy|(Z)-9-octadecen-1-ol, ethoxylated|Volpo O 5|Volpo N 5|Volpo N 3|Volpo N 10|Volpo 3

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What are the physical properties of Oleth-50?

Melting Point 25-30 °C(lit.)
Boiling Point 100 °C
Density 1 g/cm³
Flash Point >230 °F
Appearance solid
Color White to cream
Odor Bland
Form Soft Waxy Solid
Water Solubility 400ng/L@25°C
Vapor Pressure 0.26 psi ( 20 °C)
Refractive Index n 20/D 1.462
Log P 7.15

Which trade and regulatory codes apply to Oleth-50?

HS Code 34021300
WGK (Germany) 2
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