Question

What are the main components of emulsifier MOA-3B?

Answer
2026-05-27 官方文档 乳化剂MOA-3B

The main component of emulsifier MOA-3B is fatty alcohol polyoxyethylene (3) ether (C12~14 alcohol), a nonionic surfactant, also known as AEO-3, Laureth-3.

Detailed Description

The chemical name of emulsifier MOA-3B is fatty alcohol polyoxyethylene (3) ether, whose structure is made from natural C12~14 fatty alcohols (mainly lauryl alcohol) and 3 moles of ethylene oxide (EO) via addition polymerization. This product belongs to nonionic surfactants, and its International Nomenclature of Cosmetic Ingredients (INCI) name is Laureth-3, also commonly abbreviated as AEO-3 in the industry.

Since only 3 ethylene oxide units (EO=3) are introduced into the molecular structure, MOA-3B has a short hydrophilic group, giving it a moderate hydrophilic-lipophilic balance value. Therefore, this product has good oil solubility and is particularly suitable for use as an efficient emulsifying dispersant in water-in-oil (W/O) emulsion systems and oil-soluble formulations.

According to the Guoli Chemical product database, MOA-3B is a colorless to slightly yellow transparent liquid with high active content and high purity, nearly neutral pH, excellent chemical stability, maintaining good performance in both acidic and alkaline environments, and has excellent tolerance to hard water.

Technical Parameters

ParameterValue
Chemical NameFatty alcohol polyoxyethylene (3) ether
Product TypeNonionic surfactant
AliasAEO-3 / Laureth-3 / Laureth-3
Raw material alcoholC12~14 natural fatty alcohols
EO addition number3
AppearanceColorless to slightly yellow transparent liquid
pH valueNearly neutral
CAS No.Not available

Application Suggestions

Based on the characteristics of its main component, fatty alcohol polyoxyethylene (3) ether, MOA-3B excels in the following areas:

  • Pesticide formulations: As a core emulsifier in emulsifiable concentrate systems, it promotes spontaneous emulsification of the drug solution to form a stable emulsion.
  • Synthetic fiber finishes: Provides lubrication, smoothness, and antistatic functions, improving fiber spinnability.
  • Textile dyeing and printing: Used as a leveling agent and antistatic agent to improve dyeing uniformity and fabric hand feel.
  • Industrial mold release: Forms a release film to achieve clean demolding and protect the mold.
  • Emulsion polymerization: Acts as a polymerization stabilizer to ensure the storage stability of latex products.
  • Oil-soluble systems: Promotes uniform dispersion of solid particles, pigments, or active ingredients.

Precautions

MOA-3B is classified under GHS as Skin irritation Category 2 and Serious eye irritation Category 2, with the signal word "Warning". Wear protective gloves, safety goggles, and protective clothing when using, and avoid direct contact with skin and eyes. In case of accidental contact, immediately wash skin with plenty of soap and water, or flush eyes with water for at least 15 minutes, and seek medical attention promptly. For detailed safety information, refer to the Safety Data Sheet (SDS).