Castor Oil Polyoxyethylene Ether EL-40 (CAS number: 61791-12-6), also known chemically as Castor Oil Polyoxyethylene (40) Ether, with aliases including PEG-40 Castor Oil and Ethoxylated Castor Oil, is one of the core products of Haian Guoli Chemical Co., Ltd. This product belongs to nonionic surfactants and appears as a pale yellow oily liquid to paste.
This product is manufactured from natural castor oil through ethoxylation, and its molecular structure endows it with excellent comprehensive application performance. Its HLB value is moderate, making it particularly suitable as an oil-in-water (O\/W) emulsifier for emulsifying mineral oils, animal and vegetable oils. The product features excellent hard water resistance and acid-base resistance, and shows good compatibility with anionic, cationic, and nonionic auxiliaries, allowing it to function stably in complex formulation systems.
In terms of safety, this product is classified as an irritant, belonging to Skin Irritation Category 2 and Serious Eye Damage\/Eye Irritation Category 2. During operation, protective gloves, goggles, and protective clothing must be worn to avoid direct contact with skin and eyes. It is also harmful to aquatic life, and untreated products must not be discharged directly into water bodies.
1. Textile Dyeing and Printing Industry: Used as an efficient emulsifier, leveling agent, and antistatic agent. It helps dyes to penetrate and disperse evenly, improving dyeing uniformity while giving fibers a good processing feel and smoothness.
2. Pesticide Formulations: As an excellent emulsifying dispersant, it can stably disperse oily pesticide active ingredients in water, enhancing the wetting and spreading ability of the spray liquid on target surfaces, ensuring uniform spraying, and significantly improving control effectiveness.
3. Coatings, Inks, and Pigments: Used as a pigment wetting dispersant and emulsion polymerization emulsifier, effectively improving the dispersion fineness and color development of pigments and fillers, preventing flocculation and floating color, and enhancing the tinting strength and storage stability of the product.
4. Metalworking Fluids: Plays a dual role of emulsification and lubrication during cutting, grinding, and other machining processes, helping to form stable working emulsions, reducing frictional heat, protecting tools and workpiece surfaces, while also providing rust prevention properties.
5. Daily Chemical Products: As a mild nonionic surfactant, it is used to prepare emulsifying waxes, skincare creams, facial cleansers, and other personal care and household cleaning products, contributing solubilizing, emulsifying, and cleaning effects, imparting a soft touch to the product while reducing irritation.
| Parameter Item | Description |
|---|---|
| Product Name | Castor Oil Polyoxyethylene Ether EL-40 |
| Chemical Name | Castor Oil Polyoxyethylene (40) Ether (PEG-40 Castor Oil) |
| CAS Number | 61791-12-6 |
| Ionic Type | Nonionic Surfactant |
| Product Appearance | Pale yellow oily liquid to paste |
| Emulsification Type | O\/W (Oil-in-Water) Emulsifier |
| Suitable Objects | Emulsification of mineral oils, animal and vegetable oils |
| Hard Water Resistance | Excellent |
| Acid-Base Resistance | Good |
| Compatibility | Compatible with anionic, cationic, and nonionic auxiliaries |
| GHS Classification | Skin corrosion\/irritation Category 2; Eye damage\/irritation Category 2; Aquatic chronic hazard Category 3 |
When using Castor Oil Polyoxyethylene Ether EL-40, it is recommended to adjust the dosage according to the specific application scenario. When used as an emulsifier, the general addition amount is 5% to 15% of the oil phase weight; when used as a wetting dispersant, the recommended addition amount is 0.5% to 3% of the total system weight. Before use, a small-scale test can be conducted to determine the optimal ratio. This product can stably function over a wide pH range, making it especially suitable for industrial environments requiring acid and alkali resistance.