C9-11 alcohols ethoxylated

C9-11 Alcohols Ethoxylated (CAS 68439-46-3) is a nonionic surfactant produced by ethoxylating synthetic C9–C11 fatty alcohols.

Where is C9-11 alcohols ethoxylated used?

• Household and industrial cleaning: primary surfactant in hard surface cleaners, degreasers and dishwashing formulations
• Textile processing: wetting and scouring agent for uniform dye penetration and fiber preparation
• Agricultural formulations: emulsifier and dispersant in herbicide and pesticide concentrates; used as an adjuvant or wetting agent in liquid plant protection sprays and fertilizers to ensure uniform leaf coverage.
• Personal care: emulsification and mild cleansing in rinse-off products
• It lifts oils and soils without generating excessive foam.
• Metal cleaning: lowers surface tension in alkaline baths and accelerates removal of oil residues.
• Paper production: wetting and dispersion without causing foam problems.

Good to know: Standard commercial grades differ by EO mole count, typically ranging from 3 to 8 moles; this mole count determines the HLB value and specific application fit.

Formulation notes

• In agricultural sprays the recommended application dose is 0.1% of the working solution (150–300 mL/ha).
• In cleaning end products used at concentrations between 0.5% and 15%.
• Suitable for use with nonionic, anionic and cationic components.

Typical specification

• Density of 0.99 g/cm³ at 20 °C.
• Cloud point of 50–57 °C in aqueous solution.
• Compatible with nonionic, anionic, and cationic components in formulations.
• Active substance content above 99%.
• Color intensity of up to 70 on the Hazen scale.

Regulatory status

• Classified under HS heading 3402.42 for nonionic organic surface-active agents.

Storage, packaging and handling

• Tends to separate into layers over time and solidifies near 5 °C.

Frequently asked questions about C9-11 alcohols ethoxylated

Is C9-11 alcohols ethoxylated biodegradable under EU detergent rules?

It meets the biodegradability criteria set in Regulation (EC) No 648/2004 on detergents.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.