Emulsifier A-103 should be added and dosed according to the specific application scenario. The recommended dosage is generally 1%–15% of the total formula. It can be dissolved in either the oil phase or the water phase, and its effectiveness is improved when warmed before use.
Detailed Description
Emulsifier A-103 (Oleic Acid Polyoxyethylene Ester) is a non-ionic surfactant that appears as a light yellow to brownish-yellow oily liquid or paste at room temperature. Due to its moderate HLB value and strong lipophilicity, it is usually added to the oil phase first when emulsifying oily components, or pre-mixed with the oil phase before combining with the water phase. After thorough stirring, the water phase is slowly added, and with high-speed shearing or homogenization equipment, a fine and stable emulsion can be obtained.
If the formula temperature allows, it is recommended to slightly warm A-103 (approximately 30–50°C) before use, which can significantly reduce viscosity and improve fluidity and dispersion efficiency. This product maintains good activity in acidic, alkaline, and hard water environments and is widely compatible with anionic, cationic, and other non-ionic surfactants. In practical production, it is often compounded with other emulsifiers to synergistically enhance emulsion stability and formula adaptability.
In water-based systems such as water-based cleaners or pesticide microemulsions, A-103 can be first dissolved in a small amount of polar solvent (such as isopropanol, ethylene glycol monobutyl ether, etc.) or added directly to water, then heated to 40–50°C with stirring to accelerate dissolution, forming a uniform transparent dispersion before adding other components.
Technical Parameters
| Parameter | Description |
|---|
| Appearance | Light yellow to brownish-yellow oily liquid or paste |
| Ionic Type | Non-ionic surfactant |
| CAS No. | 9004-96-0 |
| Solubility | Soluble in oils and organic solvents, dispersible in water |
| Chemical Stability | Resistant to acids, alkalis, and hard water |
| Compatibility | Compatible with anionic, cationic, and non-ionic surfactants |
| Foaming Property | Low foam |
Application Recommendations
Recommended usage methods and reference dosages for various fields (the following are industry empirical values; actual dosage should be determined through experiments based on the specific formula):
- Cosmetic Creams/Lotions: Dosage 1%–5%, used as a primary emulsifier or co-emulsifier. It is recommended to compound with hydrophilic emulsifiers (such as AEO series), pre-dissolve in the oil phase, then emulsify, imparting a light skin feel to the product.
- Textile Oils and Leveling Agents: Dosage 2%–8%, added directly to the oil formulation and mixed evenly to provide lubricity and leveling effects.
- Metalworking Fluids (Cutting Fluids/Rolling Fluids): Dosage 5%–15%, mixed with base oil, rust inhibitors, etc., to provide both emulsification and lubrication functions.
- Pesticide Emulsifiable Concentrates/Microemulsions: Dosage 3%–10%, mixed with pesticide active ingredients and solvents to help emulsify and disperse the active ingredient, enhancing the wetting and spreading ability of the spray liquid on the target.
- Industrial Cleaners: Dosage 2%–8%, compounded with alkaline auxiliaries, chelating agents, etc., providing excellent removal effect on heavy oil stains and waxes.
- Leather Fatliquors: Dosage 5%–15%, added during the fatliquoring process to impart a soft and plump hand feel to the leather.
Precautions
- Safety Protection: Before operation, chemical safety goggles and impermeable gloves must be worn, along with protective clothing. This product is classified under GHS as Skin Irritant Category 2 (H315) and Serious Eye Irritant Category 2 (H319); avoid direct contact with skin and eyes.
- Ventilation Conditions: Operate in a well-ventilated area to prevent accumulation of vapors or mist droplets. If inhalable aerosols are generated, respiratory protection equipment should be worn.
- Operation Prohibitions: Do not eat, drink, or smoke during operation. After contact, thoroughly wash hands and exposed skin.
- Storage Requirements: Store in a cool, dry, and well-ventilated place. The temperature should be controlled at 5–35°C, avoiding freezing or overheating. Seal the container immediately after use.
- Environmental Note: This product is harmful to aquatic life with long-lasting effects (H412). Do not discharge waste liquids containing this product directly into water bodies or soil. Waste must be disposed of according to hazardous waste regulations.
- Pre-test: Due to large differences among formula systems, when using for the first time or changing raw material batches, it is recommended to first conduct small-scale tests to verify emulsification effect and compatibility.
