Oleic Acid Polyoxyethylene Ester A-105 (OEO-105, CAS No.: 9004-96-0) is a classic non-ionic surfactant produced by Hai'an Guoli Chemical Co., Ltd. It appears as a light yellow to yellow oily liquid or paste. The product is manufactured through the addition polymerization of natural oleic acid with ethylene oxide. Its molecular structure contains both ester groups and polyoxyethylene chains. This unique amphiphilic structure endows the product with excellent interfacial activity in both aqueous and oil-phase systems.
As a comprehensive surfactant with full performance, A-105 has six core advantages: outstanding emulsifying ability, capable of forming fine and highly stable emulsions; excellent wetting and dispersing properties, quickly reducing interfacial tension; remarkable acid and alkali resistance, maintaining chemical stability over a wide pH range; good hard water resistance, insensitive to calcium and magnesium ions; wide compatibility, capable of synergistic compounding with anionic, cationic, and other non-ionic surfactants. Meanwhile, this product is a low-toxicity substance, biodegradable, and environmentally friendly.
The application fields of A-105 span across six major industries, as detailed below:
| Application Field | Specific Uses |
|---|---|
| Textile Dyeing and Finishing Auxiliaries | Used as a key component in pretreatment scouring agents, leveling agents, penetrating agents, and post-finishing softeners, promoting uniform moisture absorption of fibers, improving dyeing uniformity and fabric hand feel. |
| Metalworking Fluids | Used in formulating emulsified oils, semi-synthetic and fully synthetic cutting fluids, and grinding fluids, performing emulsifying, lubricating, and anti-rust functions, extending tool life, and improving workpiece surface finish. |
| Pesticide Emulsifiers | Excellent emulsifying and dispersing effect on various pesticide technical materials, used in formulations such as emulsifiable concentrates and aqueous emulsions, enhancing the wetting and spreading ability of the liquid on crop surfaces. |
| Industrial Cleaning Agents | Effectively emulsifies and removes stubborn dirt such as mineral oils, animal and vegetable oils, suitable for cleaning metal parts and equipment surfaces, with good detergency and low foaming characteristics. |
| Leather Degreasing Agents | Penetrates into leather fibers to emulsify and remove natural oils, achieving uniform and thorough degreasing, leaving the leather soft and clean without affecting subsequent processing properties. |
| Cosmetic Raw Materials | Used as a mild emulsifier and emollient component in the development of personal care products such as creams, lotions, and makeup removers, with low skin irritation. |
| Parameter Item | Description |
|---|---|
| Product Name | Oleic Acid Polyoxyethylene Ester A-105 / OEO-105 |
| CAS Number | 9004-96-0 |
| Synonyms | Polyoxyethylene Oleate, Polyethylene Glycol Oleate, PEG Oleate, Polyoxyethylene Oleyl Ether Ester, Polyoxyethylene Oleic Acid Monoester |
| Product Type | Non-ionic Surfactant |
| Appearance | Light yellow to yellow oily liquid or paste |
| Ionicity | Non-ionic |
| HLB Value | Not available for this parameter |
| pH Stability | Maintains chemical stability over a wide pH range, suitable for both acidic and alkaline environments. |
| Acute Toxicity | Oral LD50 > 5000 mg/kg (rat), classified as low toxicity substance. |
| Biodegradability | Biodegradable, no bioaccumulation. |
| Flammability | Not flammable. |
In formulation applications, A-105 can be used alone or in combination with anionic, cationic, and other non-ionic surfactants for synergistic effects. In emulsification systems, A-105 can significantly reduce the total amount of emulsifier needed, lowering formulation costs. It is recommended to determine the optimal dosage through experiments based on the specific application scenario. The product does not form precipitates or lose activity under hard water conditions, making it particularly suitable for industrial environments with complex water quality.