MOA-3 (AEO-3) has the chemical name C12-14 fatty alcohol polyoxyethylene (3) ether, which is a nonionic surfactant formed by the addition polymerization of C12-14 fatty alcohol with about 3 moles of ethylene oxide. The product appears as a colorless to slightly yellow transparent liquid with an active content of over 99% and excellent purity. Due to its low ethylene oxide addition number (n≈3), the lipophilic group dominates the molecular structure, resulting in an HLB value of about 8, making it a lipophilic surfactant primarily forming water-in-oil (W/O) emulsions.
This product exhibits excellent chemical stability, with resistance to acids, alkalis, and hard water, maintaining stable performance in complex formulation systems. Its low foaming特性 makes it particularly suitable for applications requiring quick defoaming or low-foam processes. The product density is 0.92~0.94 g/cm³, and the flash point is greater than 150°C, falling within a relatively safe operating range, although its flammability should still be noted.
| Parameter Item | Technical Specification |
|---|---|
| CAS Number | 68439-50-9 |
| Chemical Name | C12-14 fatty alcohol polyoxyethylene (3) ether |
| Molecular Formula | C12-14H25-29O(C₂H₄O)nH, n≈3 |
| Molecular Weight | 300~350 |
| Appearance (25°C) | Colorless to slightly yellow transparent liquid |
| Ion Type | Nonionic |
| Active Content | ≥99% |
| HLB Value | 8 |
| Cloud Point (1% aqueous solution) | <20°C |
| pH Value (1% aqueous solution) | 5.0~7.0 |
| pH Value (5% aqueous solution) | 5.0~7.0 |
| Density (25°C) | 0.92~0.94 g/cm³ |
| Kinematic Viscosity (25°C) | 30~40 mm²/s |
| Low Shear Viscosity (25°C) | 30~40 mPa·s |
| Refractive Index (20°C) | 1.453~1.457 |
| Surface Tension (25°C) | 28~32 mN/m |
| Critical Micelle Concentration CMC (25°C) | Approximately 8×10⁻⁵ mol/L |
| Hydroxyl Value | 160~185 mgKOH/g |
| Acid Value | ≤1.0 mgKOH/g |
| Saponification Value | ≤1.0 mgKOH/g |
| Iodine Value | ≤2 gI₂/100g |
| Moisture Content | ≤1.0% |
| Free Alcohol | ≤3.0% |
| Melting Point | <0°C |
| Flash Point | >150°C |
| Solubility Characteristics | Easily soluble in oil, dispersible in water |
| Foaming Property | Low foam |
| Penetration Power | Medium |
| Alkali Resistance | Good |
| Chemical Stability | Stable |
| Hygroscopicity | Low |
| Heavy Metal Content | ≤10 mg/kg |
| Arsenic Content | ≤2 mg/kg |
Note: The above parameter data are sourced from the product database of Guoli Chemical and represent typical batch test values. Specific indicators should be based on the product inspection certificate (COA). The temperature conditions marked in the table are the standard test temperatures for parameter determination.
Based on the lipophilic characteristic of MOA-3 (AEO-3) with an HLB value of 8, its main applications are focused on constructing W/O emulsion systems and serving as synthesis intermediates: the largest use is as a key sulfonation raw material for AES (Alcohol Ether Sulfate); in personal care products, it can be used as a formulation intermediate for mild cleansing and conditioning in products such as shampoos and body washes; in the textile industry, it is used as a scouring agent and penetrant, with its low-foaming property being particularly suitable for high-shear processes; in leather degreasing processes, it can efficiently remove natural oils; in emulsion polymerization systems, it can serve as a co-emulsifier to stabilize monomer droplets.