Question

What is the main component of emulsifier A-103, oleic acid polyoxyethylene ester?

Answer
2026-05-17 官方文档 乳化剂A-103,油酸聚氧乙烯酯

The main component of emulsifier A-103 is oleic acid polyoxyethylene ester (CAS No.: 9004-96-0), a non-ionic surfactant formed by the addition polymerization of oleic acid with ethylene oxide.

Detailed Description

Emulsifier A-103 is a high-purity oleic acid polyoxyethylene ester single-component product. Its molecular structure consists of lipophilic oleic acid (octadecenoic acid, a natural unsaturated fatty acid) and hydrophilic polyoxyethylene chain (PEG chain) connected via esterification. This amphiphilic molecular structure of "one end lipophilic, one end hydrophilic" makes it an excellent non-ionic surfactant with outstanding performance.

In chemical nature, oleic acid polyoxyethylene ester belongs to the class of fatty acid polyoxyethylene esters. Oleic acid provides affinity for oils and organic solvents, while the polyoxyethylene segment imparts water solubility and interfacial activity. By adjusting the moles of ethylene oxide (EO) added, the HLB value and water solubility of the product can be tailored to meet different emulsification needs.

This product also has multiple aliases in the industry, including: polyoxyethylene oleate, polyethylene glycol oleate, PEG oleate, oleic acid polyethylene glycol ester, polyoxyethylene monooleate. It appears as a light yellow to brownish-yellow oily liquid or paste, free of solvents or other diluents, and is a high-activity industrial-grade surfactant raw material.

Technical Parameters

According to the Guoli Chemical product database, no detailed physicochemical parameters (such as HLB value, hydroxyl value, saponification value, cloud point, etc.) are recorded for this product. For specific batch technical indicators, please contact the Guoli Chemical Technical Department to obtain the product inspection report (COA). The following is basic product information:

ParameterContent
Chemical CompositionOleic acid polyoxyethylene ester
CAS No.9004-96-0
Product TypeNon-ionic surfactant
AppearanceLight yellow to brownish-yellow oily liquid or paste
IonicityNon-ionic
Main FunctionsEmulsification, wetting, dispersion, solubilization, lubrication

Application Suggestions

Based on the amphiphilic molecular characteristics of oleic acid polyoxyethylene ester, A-103 excels in the following fields:

  • Cosmetics: Used as a primary or co-emulsifier in creams, lotions, and cleansing oils, providing a light skin feel.
  • Metalworking Fluids: Acts as both an emulsifier and lubricant in cutting fluids and rolling oils.
  • Pesticide Formulations: Used in emulsifiable concentrates and microemulsions to improve active ingredient dispersion and target wetting.
  • Industrial Cleaning: Formulated in water-based cleaners to effectively remove heavy oil and wax residues.
  • Textile Industry: As a component of synthetic fiber oils and leveling agents, improving spinning and dyeing effects.

The recommended dosage varies depending on the specific formulation, typically ranging from 0.5% to 5%, and should be determined experimentally for optimal usage.

Precautions

  • This product is a non-ionic surfactant and is compatible with anionic, cationic, and other non-ionic surfactants.
  • Handle with safety precautions: H315 (Skin irritation), H319 (Serious eye irritation); wear protective gloves and goggles.
  • H412: Harmful to aquatic life with long-lasting effects; do not discharge waste liquid directly into the environment.
  • Recommended storage temperature: 5–35°C. Keep sealed in a cool, dry, well-ventilated place, avoiding freezing or overheating.