Peregal O-15 (chemical name: Fatty alcohol polyoxyethylene (15) ether, CAS: 68439-49-6) produced by Guo Li Chemical is a nonionic surfactant synthesized by adding 15 moles of ethylene oxide to C16-18 fatty alcohols as the starting agent. Its appearance is a white to slightly yellow paste or solid, with a softening point of approximately 40-45°C. It is readily soluble in polar solvents such as water, ethanol, and acetone, forming a clear solution in water. The product has an active matter content of ≥99%, solid content of ≥99%, and residual free alcohol ≤1%, ensuring high purity and stable performance.
The core physicochemical characteristics of Peregal O-15 include: a cloud point of 80-90°C (1% aqueous solution), which means it maintains good surface activity in moderate to high-temperature systems (e.g., industrial cleaning, textile scouring); an HLB value of about 14.5, indicating a highly hydrophilic emulsifier, particularly suitable for preparing O\/W (oil-in-water) emulsions; excellent chemical stability, withstanding high concentrations of alkali (200g\/L NaOH) as well as conventional acidic and hard water conditions, and good compatibility with nonionic, anionic, cationic, and amphoteric auxiliaries. This product is a low-foaming surfactant, suitable for industrial operations where excessive foam is undesirable.
In terms of safety and environmental impact, Peregal O-15 is a low-toxicity chemical with an acute oral LD50 (rat) of >2000 mg\/kg; its ecotoxicity to aquatic organisms is relatively low, with fish LC50 (96h) and Daphnia EC50 (48h) both >100 mg\/L. However, it can cause skin irritation (Category 2) and serious eye irritation (Category 2A). Operators should wear protective gloves, goggles, and other personal protective equipment, and prevent the product from entering water environments.
| Parameter Item | Specification\/Value | Parameter Item | Specification\/Value |
|---|---|---|---|
| Chemical Name | Fatty alcohol polyoxyethylene (15) ether | Alias | AEO-15, Leveling agent O-15, Peregal O-15 |
| CAS No. | 68439-49-6 | Ion Type | Nonionic |
| Molecular Formula | C16-18H33-37(OCH2CH2)15OH | Molecular Weight | Approx. 800 |
| Appearance | White to slightly yellow paste or solid | Softening Point | Approx. 40-45°C |
| Active Matter Content | ≥99% | Solid Content | ≥99% |
| HLB Value | Approx. 14.5 | Cloud Point (1% Aqueous Solution) | 80-90°C |
| pH (1% Aqueous Solution) | 5.0-7.0 | pH (5% Aqueous Solution) | 5.0-7.0 |
| Hydroxyl Value | 60-70 mgKOH\/g | Acid Value | ≤1 mgKOH\/g |
| Saponification Value | ≤1 mgKOH\/g | Iodine Value | ≤2 gI₂\/100g |
| Moisture | ≤0.5% | Free Alcohol | ≤1% |
| Density (25°C) | Approx. 1.03 g\/cm³ | Kinematic Viscosity (50°C) | Approx. 150 mm²\/s |
| Refractive Index | 1.460-1.470 | Flash Point | >190°C |
| Surface Tension (25°C) | Approx. 33 mN\/m | Critical Micelle Concentration (CMC) | Approx. 0.03% |
| Foam Characteristics | Low foaming | Alkali Resistance | Can withstand 200g\/L NaOH |
| Solubility | Readily soluble in water, ethanol, acetone, etc. | Chemical Stability | Stable, resistant to acid, alkali, and hard water |
| Hygroscopicity | Low | Unsaturation | ≤0.01 mol\/kg |
| Heavy Metals (as Pb) | ≤10 mg\/kg | Arsenic (As) | ≤2 mg\/kg |
| Amine Value\/Tertiary Amine Content | None | Free Phosphoric Acid\/Bound Phosphorus | None |
| Toxicology — LD50 (Rat, Oral) | >2000 mg\/kg |