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[Rhodia, Inc] A registered trademark for a series of nonionic surfactants composed of alkylphenoxypoly(ethyleneoxy)ethanols. Igepal® surfactants are pale yellow viscous liquids. A 5% aqueous solution of Igepal® CA has a pH of 7-9. They are effective detergents, wetting agents and emulsifiers and have been used to remove tarnish from silver. However, alkylphenol ethoxylate compounds, like Igepal® and Triton® X, are xenoestrogens and should be handled with caution. Nonoxynol-9 (same as Igepal® CA-630) is also used as a spermicide.

Synonyms and Related Terms

Igepal® CA-630; Igepal CA-630; Nonoxynol-9


  • Contact will cause irritation to skin, and eyes.
  • Extremely hazardous.
  • Handle carefully and dispose as hazardous waste.
  • ThermoFisher: SDS

Physical and Chemical Properties

  • Miscible in water, ethanol and acetone.
  • Soluble in benzene, toluene.
  • Insoluble in ligroin.
  • Density = 1.0595

Resources and Citations

  • Caring for your Collections, Arthur W Schulz (ed.), Harry N. Abrams, Inc. , New York, 1992
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997

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