Emulsifier A-110, chemically named polyethylene glycol monooleate (PEG oleate), is a nonionic surfactant composed of natural oleic acid as the hydrophobic group and polyoxyethylene chains as the hydrophilic group. At room temperature, it appears as a light yellow to yellow transparent oily liquid or paste, with a molecular weight of approximately 708 g/mol. Its HLB value lies between 11 and 12, providing a balanced hydrophilic-lipophilic characteristic that efficiently forms oil-in-water (O/W) emulsions.
This product is readily soluble in water, with a pH value of 5.0~9.0 for a 1% aqueous solution. It exhibits low foaming properties and rapid foam dissipation. The cloud point ranges from approximately 75 to 85°C, indicating stable structure retention even at higher temperatures. In terms of surface chemical performance, the surface tension at 1% concentration and 25°C is about 30 mN/m, and the critical micelle concentration (CMC) is approximately 1.3×10⁻⁴ mol/L, demonstrating excellent interfacial adsorption and micellization capabilities.
From a quality indicator perspective, the product has an active content ≥99%, monoester content ≥95%, diester content ≤5%, free alcohol ≤2%, moisture ≤1.0%, acid value ≤2.0 mgKOH/g, saponification value and hydroxyl value both in the range of 75~85 mgKOH/g, heavy metals (as Pb) ≤10 mg/kg, and arsenic ≤2 mg/kg, ensuring high purity and good safety.
| Parameter Item | Value / Description |
|---|---|
| CAS Number | 9004-96-0 |
| Molecular Formula | C18H34O2·(C2H4O)n |
| Molecular Weight | Approx. 708 |
| Appearance | Light yellow to yellow liquid or paste |
| Ionic Type | Nonionic |
| HLB Value | 11~12 |
| Cloud Point | 75~85°C |
| Active Content | ≥99% |
| pH (1% Aqueous Solution) | 5.0~9.0 |
| pH (5% Aqueous Solution) | 5.0~7.5 |
| Solubility | Readily soluble in water |
| Density (25°C) | Approx. 1.00 g/cm³ |
| Kinematic Viscosity (25°C) | Approx. 200 mm²/s |
| Low Shear Viscosity (25°C) | Approx. 300 mPa·s |
| Refractive Index (20°C) | 1.4600~1.4700 |
| Surface Tension (1%, 25°C) | Approx. 30 mN/m |
| Critical Micelle Concentration (CMC, 25°C) | Approx. 1.3×10⁻⁴ mol/L |
| Melting Point | Approx. -5°C |
| Flash Point (Closed Cup) | >200°C |
| Acid Value | ≤2.0 mgKOH/g |
| Saponification Value | 75~85 mgKOH/g |
| Hydroxyl Value | 75~85 mgKOH/g |
| Iodine Value | 80~95 gI₂/100g |
| Unsaturation | Approx. 1.4 mol/kg |
| Moisture | ≤1.0% |
| Monoester Content | ≥95% |
| Diester Content | ≤5% |
| Free Alcohol | ≤2% |
| Heavy Metals (as Pb) | ≤10 mg/kg |
| Arsenic (As) | ≤2 mg/kg |
| Foaming Characteristics | Low foaming |
| Hygroscopicity | Slightly hygroscopic |
| Chemical Stability | Stable at room temperature, avoid strong acids, strong bases, and high temperatures |
| Alkali Resistance | Not resistant to strong alkalis (Note: structurally stable in acids, bases, and hard water; caution required in strong alkali environments) |
| Packaging Specifications | 50kg plastic drum / 200kg plastic drum / IBC tote |
Based on the above physicochemical properties, Emulsifier A-110 is particularly suitable for the following scenarios:
This product is mildly irritating to skin and eyes; it is recommended to wear chemical protective gloves and goggles during operation. Storage temperature should be maintained at 5~35°C, avoiding freezing or deterioration due to high temperatures. Do not store with strong oxidizers or mix with food and feed. Although the product has good structural stability under acidic and alkaline conditions, compatibility and stability assessments are still necessary in strong alkaline environments.