Castor Oil Polyoxyethylene Ether EL-60 (CAS No.: 61791-12-6) belongs to the category of nonionic surfactants. Its appearance is a pale yellow to yellow viscous liquid or paste. This product is chemically stable, not easily hydrolyzed, and exhibits good alkali resistance, maintaining stable performance in acidic, alkaline, and hard water systems. Its foam characteristic is low foam, making it suitable for formulations where foam generation needs to be suppressed.
The core advantage of this product lies in its efficient emulsifying and dispersing ability, which can significantly reduce the oil-water interfacial tension and effectively emulsify organic phases such as mineral oils, animal and vegetable oils. Additionally, it has extremely low irritation to human skin and eyes, belonging to the practically non-toxic level, and is rapidly biodegradable with excellent environmental compatibility.
| Item | Technical Index |
|---|---|
| Appearance | Pale yellow to yellow viscous liquid or paste |
| Ionic Type | Nonionic |
| Active Content (Solid Content) | ≥99% |
| HLB Value | 14.5 |
| Moisture Content | ≤0.5% |
| pH Value (1% Aqueous Solution) | 5.0-7.0 |
| pH Value (5% Aqueous Solution) | 5.0-7.0 |
| Acid Value | ≤1.0 mgKOH/g |
| Saponification Value | 45~55 mgKOH/g |
| Hydroxyl Value | 40~50 mgKOH/g |
| Iodine Value | ~22 gI₂/100g |
| Cloud Point (1% Aqueous Solution) | ≥90°C |
| Solidification Point | Approx. 5-10°C |
| Density | 1.05~1.07 g/cm³ |
| Kinematic Viscosity (40°C) | 200-400 mm²/s |
| Low Shear Viscosity (25°C) | 1000-5000 mPa·s |
| Surface Tension (0.1% Solution, 25°C) | Approx. 42 mN/m |
| Critical Micelle Concentration (CMC) | Approx. 0.03 g/L (25°C) |
| Refractive Index (25°C) | 1.470-1.475 |
| Flash Point | >200°C |
| Solubility | Easily soluble in water, ethanol, ether, and other organic solvents |
| Foam Characteristic | Low foam |
| Hygroscopicity | Hygroscopic |
| Chemical Stability | Stable, not easily hydrolyzed |
| Alkali Resistance | Alkali-resistant, stable under alkaline conditions |
| Heavy Metals (as Pb) | ≤10 mg/kg |
| Arsenic (As) | ≤2 mg/kg |
With its hydrophilic characteristic of HLB value 14.5, Castor Oil Polyoxyethylene Ether EL-60 is particularly suitable as an oil-in-water (O/W) emulsifier. In metalworking fluid formulations, it is recommended for formulating emulsified cutting fluids and grinding fluids, providing synergistic effects of cooling, lubrication, and rust prevention. In textile printing and dyeing, it can be used as a high-temperature leveling agent and dispersant. In daily chemical products, it is commonly used for solubilization and emulsification in transparent shampoos, body washes, and makeup removers. The recommended dosage needs to be determined through experiments based on the oil loading of the specific formulation.