What is the main component of Oleic Acid Polyoxyethylene Ester A-105, OEO-105?

The main component of Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is Polyoxyethylene Oleate Monoester (content ≥90%), which belongs to nonionic surfactants.

Detailed Description

Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is a high-purity nonionic surfactant produced by addition polymerization of ethylene oxide (EO) using natural oleic acid as the starting material. Its full chemical name is Polyoxyethylene Oleate, also known as Polyethylene Glycol Oleate or PEG Oleate. In the molecular structure, the hydrophobic end originates from natural oleic acid (C18 unsaturated fatty acid), and the hydrophilic end is a polyoxyethylene chain segment with an average degree of polymerization of approximately 10. The molecular formula can be expressed as C₁₈H₃₃O₂(C₂H₄O)_nH (n≈10), with an average molecular weight of about 700.

According to the product quality standards of Guoli Chemical, this product uses Polyoxyethylene Oleate Monoester as the main active component, with a monoester content of not less than 90%, while containing no more than 5% diester by-products and no more than 2% free alcohol (PEG residues). This high monoester purity ensures excellent emulsifying ability and interfacial activity of the product, enabling rapid formation of stable micellar structures in water, with a critical micelle concentration (CMC) of only 0.02~0.03 g\/L.

The product appears as a light yellow to yellow oily liquid or paste, with an active ingredient content ≥99%, CAS No. 9004-96-0. Due to the addition process using natural oleic acid and ethylene oxide, the product possesses both the affinity of ester groups and the water solubility of polyoxyethylene chain segments at the molecular level, making it exhibit excellent emulsifying, wetting, and dispersing properties in a wide range of industrial formulations.

Technical Parameters

Application Recommendations

The high content of Polyoxyethylene Oleate Monoester endows A-105 with excellent interfacial properties, making it outstanding in the following application areas:

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• Metalworking Fluids: As the core emulsifying component of emulsified oils and semi-synthetic cutting fluids, providing stable oil-water emulsification systems and excellent lubricating properties.
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• Pesticide Emulsifiers: Used in pesticide emulsifiable concentrates, water-emulsion formulations, etc., ensuring rapid emulsification and dispersion of active ingredients and enhancing leaf wetting and spreading ability.
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• Industrial Cleaners: Effectively emulsifies and removes heavy oils such as mineral oils, animal and vegetable oils, while having low foaming properties, suitable for cleaning metal parts and equipment.
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• Textile Printing and Dyeing Auxiliaries: Used as scouring agents, leveling agents, and dispersants in pretreatment, improving fiber wetting and dye leveling effects.
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• Cosmetics: As a mild nonionic emulsifier and solubilizer, suitable for formulations of creams, lotions, cleansing oils, and other personal care products.
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• Leather Degreasing Agents: Penetrates deep into leather fibers, emulsifying and removing natural oils to achieve uniform and thorough degreasing.
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Precautions

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• This product is a nonionic surfactant, and its performance is not affected by calcium or magnesium ions in hard water; it can be used over a wide pH range.
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• It is mildly irritating to skin and eyes. Protective gloves and goggles are recommended during operation, and prolonged direct contact should be avoided.
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• Storage temperature should not exceed 40°C. Keep sealed in a cool, dry, and well-ventilated place, avoiding direct sunlight and high temperatures to prevent darkening of color.
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