Pingpingjia O-3 (CAS No.: 68439-49-6), chemical name fatty alcohol polyoxyethylene (3) ether, molecular formula C12-14H25-29O(C2H4O)3H, molecular weight approx. 330 (source: Guoli Chemical Database). The product appears as colorless to light yellow liquid or paste, with a melting point range of 35~40°C, so it may be in paste form under low temperature conditions in winter, which is a normal physical phenomenon. Its ionic type is nonionic, with the lipophilic group dominating, HLB value only 6.5~8.5, and it does not dissolve in water but is in a dispersed state, which is highly consistent with its positioning as a water-in-oil (W\/O) emulsifier.
In terms of surface activity indicators, Pingpingjia O-3 has excellent interfacial properties: critical micelle concentration (CMC) approx. 0.05 g\/L, surface tension of 0.1% aqueous solution at 25°C approx. 28~30 mN\/m, indicating that it can effectively reduce the oil-water interfacial tension at very low concentrations. The active content of the product is ≥99%, free alcohol residue ≤1.0%, with high purity. Acid value ≤1.0 mgKOH\/g, saponification value ≤1.0 mgKOH\/g, iodine value ≤2 mgKOH\/g, indicating extremely low unsaturation and stable chemical properties. Hydroxyl value range 160~170 mgKOH\/g, corresponding to the molecular structure characteristics of about 3 ethylene oxide adducts.
Pingpingjia O-3 maintains good chemical stability under a wide range of acidic and alkaline environments and hard water conditions, with good alkali resistance. Product density 0.92~0.94 g\/cm³, kinematic viscosity 30~50 mm²\/s (low shear viscosity at 25°C approx. 28~47 mPa·s), flash point above 150°C, slightly hygroscopic, low foam. Heavy metal content ≤10 mg\/kg, arsenic content ≤2 mg\/kg, meeting the quality requirements of mainstream industrial applications.
| Parameter | Value |
|---|---|
| CAS No. | 68439-49-6 |
| Chemical Name | Fatty Alcohol Polyoxyethylene (3) Ether (C12-14 Alcohol Ether-3) |
| Molecular Formula | C12-14H25-29O(C₂H₄O)₃H |
| Molecular Weight | approx. 330 |
| Ionic Type | Nonionic Surfactant |
| Appearance | Colorless to light yellow liquid or paste |
| Melting Point | 35~40 °C |
| HLB Value | 6.5~8.5 |
| Active Content | ≥99% |
| pH (1% Aqueous Solution, 25°C) | 5.5~7.5 |
| pH (5% Aqueous Solution, 25°C) | 5.5~7.5 |
| Hydroxyl Value | 160~170 mgKOH\/g |
| Acid Value | ≤1.0 mgKOH\/g |
| Saponification Value | ≤1.0 mgKOH\/g |
| Iodine Value | ≤2 mgKOH\/g |
| Moisture Content | ≤1.0% |
| Free Alcohol | ≤1.0% |
| Solubility | Soluble in ethanol, acetone and other organic solvents; dispersible in water; insoluble in water, no typical cloud point |
| Density (25°C) | 0.92~0.94 g\/cm³ |
| Kinematic Viscosity | 30~50 mm²\/s |
| Low Shear Viscosity (25°C) | approx. 28~47 mPa·s |
| Refractive Index | 1.45~1.46 |
| Flash Point | >150 °C |
| Surface Tension (0.1% Aqueous Solution, 25°C) | approx. 28~30 mN\/m |
| Critical Micelle Concentration (CMC) | approx. 0.05 g\/L |
| Foam Characteristic | Low foam |
| Hygroscopicity | Slightly hygroscopic |
| Chemical Stability | Good chemical stability towards acids, alkalis, hard water, and oxidizing agents |
| Alkali Resistance | Good |