Bio-Soft® N Series

High Active Nonionic Surfactants from Stepan.

Bio-Soft® N-Series: Linear Alcohol Ethoxylates

The Bio-Soft® N-Series from Stepan provides excellent wetting, emulsification and detergency with moderate foam production.

Stepan’s Bio-Soft line of linear alcohol ethoxylates are biodegradable, mild to the skin and easily colored and fragranced. Stepan’s LAEs range from clear liquids to semi-solids with relatively low melting points.

The Bio-Soft LAEs are named according to the alcohol chain length and the average number of moles of ethoxylation.

For instance, Bio-Soft N1-5 has a carbon chain length of 11 and 5 moles of ethylene oxide. Bio-Soft 23-3 has a carbon chain length of 12-13 and 3 moles of ethylene oxide.

These surfactants are used in numerous household, institutional and industrial cleaning and process formulations.

Functional Properties

  • Emulsification
  • Moderate foam production
  • Detergent
  • Excellent wetting agents
  • Effective on greasy soils
  • Solubilizer
  • Use in conjunction with anionic, amphoteric and cationic surfactants


  • Laundry Products
  • Textiles
  • Hard surface cleaners
  • Paints

  • Handwashing detergents
  • I&I cleaners
  • Low foam machine cleaning

BIO-SOFT N1, N23 and N91 series

BIO-SOFT N1, N23 and N91 series are high active nonionic surfactants. The BIO-SOFT N series products are stable in both aqueous acidic and alkaline solutions, allowing for application in a wide range of products.

The alcohol ethoxylates containing between one and five moles of ethoxylation are primarily useful in oil-based systems.

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