Castor Oil Polyoxyethylene Ether EL-12 (CAS No.: 61791-12-6), chemically named PEG-12 Castor Oil, is a nonionic surfactant produced by the addition polymerization of natural castor oil with 12 moles of ethylene oxide (EO). The product appears as a light yellow to yellow transparent oily liquid, with good chemical stability and formulation compatibility.
As a classic O\/W emulsifier, EL-12 has efficient emulsifying effects on various oil phases and organic solvents, significantly reducing oil-water interfacial tension to form stable emulsions. Its nonionic nature allows it to be widely compatible with anionic, cationic, and other nonionic additives, offering great formulation flexibility. At the same time, this product maintains stable surface activity in acid, alkali, and hard water media, adapting to complex working conditions. Derived from natural castor oil raw materials, EL-12 has very low skin and eye irritation, making it a mild surfactant.
In terms of safety, EL-12 is non-hazardous, with an acute oral LD50 greater than 5000 mg\/kg, classified as practically non-toxic. Skin and eye irritation tests show no irritation. The product has good biodegradability, is environmentally friendly, and has a flash point greater than 200°C, making it non-flammable.
1. Cosmetics and Personal Care Products: As a nonionic solubilizer and emulsifier, it is used in creams, lotions, makeup removers, bath products, etc., effectively solubilizing oil components such as fragrances and essential oils, providing a fine skin feel and stable emulsion structure.
2. Pesticide Formulations: Used as an efficient emulsifier for emulsifiable concentrates (EC) and emulsions in water (EW), it helps uniformly disperse pesticide active ingredients in water, improving the thermodynamic stability and field dilution emulsification performance of pesticide formulations, and enhancing the wetting and spreading ability of the spray solution.
3. Textile Auxiliaries: Applied in spinning oils, softeners, and high-temperature leveling agents, providing excellent smoothness and antistatic properties, helping dyes dye uniformly, and imparting smoothness and processing convenience to fibers.
4. Metalworking Fluids and Industrial Lubricants: Acts as an emulsifying and lubricating component, promoting oil phase dispersion in cutting fluids, grinding fluids, and other systems to form stable emulsions, while providing good boundary lubrication to protect workpieces and tools.
5. Industrial Cleaners and Degreasers: Utilizes wetting, penetrating, and emulsifying effects to quickly remove oil and grease from surfaces such as metal and plastic, improving cleaning efficiency, suitable for various water-based and semi-water-based cleaning formulations.
| Parameter Name | Parameter Detail |
|---|---|
| Product Name | Castor Oil Polyoxyethylene Ether EL-12 |
| CAS No. | 61791-12-6 |
| Chemical Name | PEG-12 Castor Oil |
| Alias | Polyoxyethylene Castor Oil EL-12, Ethoxylated Castor Oil (EO=12), Cremophor EL-12, Polyethylene Glycol-12 Castor Oil |
| Ionic Type | Nonionic Surfactant |
| Appearance | Light yellow to yellow transparent oily liquid |
| EO Number | 12 |
| Emulsion Type | O\/W (Oil-in-Water) |
| Flash Point | >200°C (Closed Cup) |
| Acute Oral Toxicity | LD50 >5000 mg\/kg (Practically Non-toxic) |
| Skin Irritation | Non-irritating |
| Biodegradability | Readily biodegradable |
| Hazard Classification | Non-hazardous |
EL-12 is suitable for emulsifying mineral oils, animal and vegetable oils. In formulations, it is recommended to use it as a primary or auxiliary emulsifier in O\/W emulsion systems. In cosmetic formulations, the recommended dosage is typically 1%-5%; in pesticide emulsifiable concentrates, the dosage is usually 5%-15%; in metalworking fluids, the dosage depends on formulation requirements, typically 3%-10%. The specific dosage should be determined through experiments based on the actual formulation system and process requirements.