Castor Oil Polyoxyethylene Ether EL-60 (CAS No.: 61791-12-6) is a non-ionic surfactant produced by ethoxylating natural castor oil with 60 moles of ethylene oxide (EO). It appears as a light yellow to yellow viscous liquid or paste. This product has a high HLB value of 14.5, is easily soluble in water, has strong hydrophilicity, and can effectively reduce the oil-water interfacial tension. It is a typical oil-in-water (O/W) emulsifier. In practical use, EL-60 can be directly added to the water phase with stirring to dissolve, or mixed with the oil phase followed by adding water for emulsification. The specific operation method depends on the characteristics of the formulation system.
The usage method of EL-60 varies depending on the application field: When used as an industrial emulsifier, generally add EL-60 at 5% to 15% of the oil phase weight into the oil or water phase, and obtain a stable emulsion after high-speed shearing or homogenization; when used as a textile leveling agent, the dosage in the bath is usually 0.5~2 g/L, used together with dyes in the same bath to effectively prevent dye stains and spots; in pesticide formulations, as an emulsifier, the recommended dosage is 8% to 15% of the oil phase weight, and better effects are achieved when compounded with anionic emulsifiers; as a daily chemical solubilizer, premix fragrance or essential oil with EL-60 at a ratio of 1:1 to 1:3, then slowly add to the water phase with stirring to obtain a transparent system.
The freezing point of this product is about 5~10°C. Solidification or stratification may occur at low temperatures, which is a normal physical change. If solidified at low temperature before use, it is recommended to slowly warm the product to 25~40°C with stirring to restore fluidity before normal use. The product performance will not be affected. EL-60 has good compatibility with anionic, cationic and amphoteric surfactants, and is stable in acid, alkali and hard water systems, so it can be flexibly compounded according to formulation needs.
| Parameter Item | Value/Description |
|---|---|
| Product Name | Castor Oil Polyoxyethylene Ether EL-60 |
| CAS No. | 61791-12-6 |
| Ionic Type | Non-ionic Surfactant |
| Appearance (25°C) | Light yellow to yellow viscous liquid or paste |
| HLB Value | 14.5 (Data source: Guoli Chemical Product Database) |
| Active Content | ≥99% (Data source: Guoli Chemical Product Database) |
| Cloud Point (1% Aqueous Solution) | ≥90°C (Data source: Guoli Chemical Product Database) |
| Freezing Point | Approx. 5~10°C (Data source: Guoli Chemical Product Database) |
| pH Value (1% Aqueous Solution) | 5.0~7.0 (Data source: Guoli Chemical Product Database) |
| Surface Tension (0.1%, 25°C) | Approx. 42 mN/m (Data source: Guoli Chemical Product Database) |
| Critical Micelle Concentration (CMC) | Approx. 0.03 g/L (25°C) (Data source: Guoli Chemical Product Database) |
| Foam Characteristics | Low foaming (Data source: Guoli Chemical Product Database) |
| Saponification Value | 45~55 mgKOH/g (Data source: Guoli Chemical Product Database) |
| Hydroxyl Value | 40~50 mgKOH/g (Data source: Guoli Chemical Product Database) |
| Density (25°C) | 1.05~1.07 g/cm³ (Data source: Guoli Chemical Product Database) |
| Flash Point | >200°C (Data source: Guoli Chemical Product Database) |
| Moisture | ≤0.5% (Data source: Guoli Chemical Product Database) |
| Biodegradability | Easily and rapidly biodegradable (>60% BOD/COD, OECD 301B) (Data source: Guoli Chemical Product Database) |
According to different application fields, the following usage methods and reference dosages are recommended (source: combined with application field descriptions from Guoli Chemical Product Database and industry common practices):