The recommended dosage of Hydrogenated Castor Oil Polyoxyethylene Ether HEL-40 depends on the specific application function. The following are typical recommended ranges for various fields (data are industry general recommendations; the specific dosage should be determined through formulation trials):
| Application Field | Functional Role | Typical Dosage (wt%) |
|---|---|---|
| Cosmetic creams/lotions | O/W emulsifier | 1.0% – 5.0% |
| Makeup remover oil/water | Emulsifier, solubilizer | 3.0% – 10.0% |
| Transparent aqueous products (toner, spray) | Fragrance/essential oil solubilizer | 2 – 5 times the amount of fragrance (typically 0.5% – 2.0% in formulation) |
| Facial cleanser/shower gel | Fatliquoring agent, superfatting agent | 0.5% – 2.0% |
| Textile leveling agent | Leveling, softening | 0.5% – 2.0% (based on fabric weight) |
| Metalworking fluid (cutting fluid concentrate) | Emulsifier, lubricant | 5.0% – 20.0% (in concentrate) |
| Hard surface cleaner | Surfactant, degreasing aid | 1.0% – 5.0% |
| Pesticide emulsifiable concentrate/microemulsion | Emulsifying dispersant | 5.0% – 15.0% |
As a solubilizer (transparent aqueous system): Premix HEL-40 with the fragrance, essential oil, or oil-soluble active ingredient to be solubilized in a ratio (usually 2-5 times the amount of the fragrance) and stir until homogeneous to form a transparent uniform mixture. Then, under slow stirring, gradually add this mixture into the water phase. Continue stirring to obtain a transparent and stable aqueous system. If cloudiness occurs, it indicates insufficient solubilizer; add more HEL-40 until the system becomes clear.
As an O/W emulsifier (cream, lotion systems): Use a hot process. Add HEL-40 to the oil phase and heat together with the oil components to 70-75°C; simultaneously heat the water phase ingredients to the same temperature. Under high-speed homogenization or stirring, slowly add the water phase into the oil phase (or vice versa). Homogenize for 3-5 minutes, then cool to room temperature while stirring to form a fine and stable emulsion. With an HLB value of 13-15, HEL-40 is suitable for use alone as an O/W emulsifier or can be combined with low-HLB emulsifiers to broaden formulation compatibility.
As a component in industrial auxiliary formulations: In industrial formulations such as metalworking fluids, cleaners, and pesticide preparations, HEL-40 can be directly mixed with other components at room temperature or under mild heating. The order of addition is usually prior to the water phase or mixing with the base oil. The product may appear pasty below 5°C; it is recommended to warm it in a 15-35°C environment or gently heat to restore fluidity before use. This product has good compatibility with anionic, cationic, and amphoteric surfactants, offering high formulation flexibility.
| Parameter Item | Specification Value |
|---|---|
| Appearance | Light yellow to yellow transparent liquid or paste |
| Ionic Type | Nonionic |
| HLB Value | 13 – 15 |
| Active Content | ≥99.0% |
| Cloud Point (1% aqueous solution) | >100°C |
| pH Value (1% aqueous solution) | 5.0 – 7.0 |
| Hydroxyl Value | 60 – 75 mgKOH/g |
| Melting Point | 23 – 25°C |
| Moisture Content | ≤1.0% |
| Viscosity (25°C) | 500 – 1000 mPa·s |
| Density | 1.04 – 1.06 g/cm³ |
| Critical Micelle Concentration (CMC) | Approx. 20 mg/L |
| Surface Tension (0.1% aqueous solution) | 30 – 35 mN/m |
| Iodine Value | ≤2.0 |
| CAS Number | 61788-85-0 |