Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is a nonionic surfactant derived from natural oleic acid, possessing excellent emulsifying, wetting, and dispersing properties, as well as outstanding acid and alkali resistance, hard water tolerance, and broad compatibility. It is a key component for achieving stable emulsification and efficient wetting in industrial formulations.
Detailed Description
Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is a nonionic surfactant produced by the addition polymerization of ethylene oxide onto natural oleic acid. It appears as a light yellow to yellow oily liquid or paste. Its molecular structure, which combines ester groups and polyoxyethylene chains, endows it with unique amphiphilic properties—both hydrophilic and lipophilic—enabling it to exhibit excellent interfacial activity in both aqueous and oil-phase systems.
The outstanding advantages of this product are reflected in six core characteristics: Excellent emulsifying ability, providing remarkable emulsification effects for various oils and organic solvents, forming fine and highly stable emulsions that significantly reduce the total amount of emulsifier required; Excellent wetting and dispersing performance, quickly reducing interfacial tension, promoting liquid spreading on solid surfaces, and effectively dispersing solid particles to prevent secondary agglomeration; Outstanding acid and alkali stability, with its nonionic structure maintaining chemical stability across a wide pH range, ensuring no performance degradation in acidic or alkaline environments; Good hard water resistance, being insensitive to calcium and magnesium ions, without precipitation or deactivation in hard water; Broad compatibility, allowing synergistic combination with anionic, cationic, and other nonionic surfactants.
In terms of safety and environmental protection, A-105 is a low-toxicity substance (oral LD50 > 5000 mg/kg), with only slight irritation to skin and eyes, no significant toxicity to aquatic organisms, and is biodegradable and non-flammable, meeting environmental and storage/transport safety requirements.
Technical Parameters
| Parameter | Description |
|---|
| Product Name | Oleic Acid Polyoxyethylene Ester A-105 / OEO-105 |
| CAS No. | 9004-96-0 |
| Aliases | Oleic Acid Polyoxyethylene Ester, Polyethylene Glycol Oleate, PEG Oleate, Oleic Acid Polyoxyethylene Ether Ester, Polyoxyethylene Oleic Acid Monoester |
| Ionic Type | Nonionic Surfactant |
| Appearance | Light yellow to yellow oily liquid or paste |
| Raw Material Source | Natural oleic acid via ethylene oxide addition polymerization |
| pH Stability | Chemically stable over a wide pH range (acid and alkali resistant) |
| Hard Water Resistance | Insensitive to calcium and magnesium ions |
| Acute Toxicity | LD50 > 5000 mg/kg (low toxicity) |
| Biodegradability | Biodegradable |
| Flammability | Non-flammable |
| HLB Value | Not available |
| Cloud Point | Not available |
| Hydroxyl Value | Not available |
Application Recommendations
With its versatile properties, A-105 finds wide application in six major fields:
- Textile and Dyeing Auxiliaries: Used as a key component in pretreatment scouring agents, leveling agents, penetrating agents, and finishing softeners, enhancing fabric processing uniformity and hand feel.
- Metalworking Fluids: Used in formulating emulsifiable oils, semi-synthetic and fully synthetic cutting fluids, and grinding fluids, providing emulsification, lubrication, and rust inhibition to extend tool life and improve workpiece surface finish.
- Pesticide Emulsifiers: Exhibits excellent emulsifying and dispersing effects on various pesticide active ingredients, suitable for emulsifiable concentrates, oil-in-water emulsions, and other formulations, enhancing the wetting and spreading ability of the spray liquid on crop surfaces.
- Industrial Cleaning Agents: Effectively emulsifies and removes stubborn dirt such as mineral oils and animal/vegetable oils, suitable for cleaning metal parts and equipment surfaces, with good detergency and low foam characteristics.
- Leather Degreasing Agents: Penetrates deeply into leather fibers to emulsify and remove natural fats, achieving uniform and thorough degreasing without affecting subsequent leather processing properties.
- Cosmetic Raw Materials: Serves as a mild emulsifier and emollient component, suitable for developing personal care products such as creams, lotions, and cleansing oils, with low skin irritation.
Precautions
- Storage Conditions: Store in a cool, dry, well-ventilated place away from heat sources and open flames. Recommended storage temperature does not exceed 40°C, avoiding high temperatures and direct sunlight.
- Container Requirements: Keep containers sealed. Use compatible materials such as stainless steel, polyethylene, or lined steel drums. Avoid prolonged contact with metals like copper and aluminum.
- Safe Operation: Wear chemical-resistant protective gloves and splash goggles during handling to avoid contact with eyes and skin. Wash hands thoroughly after handling. Although it is low toxicity, ingestion should still be avoided.
- Incompatibilities: Store separately from strong oxidizing agents (e.g., peroxides, concentrated nitric acid, permanganates).
- Waste Disposal: Dispose of waste and contaminated containers as industrial waste in accordance with local regulations. Do not discharge or discard arbitrarily. It is recommended to use qualified treatment facilities for incineration or biological treatment.
