OS-15 (AEO-15) is a nonionic surfactant, its chemical name is fatty alcohol polyoxyethylene (15) ether, and the corresponding CAS number is 58265-74-0. The core component of the product is prepared by the addition polymerization reaction of natural or synthetic fatty alcohols (C12-C14 carbon chain length, i.e., lauryl alcohol to myristyl alcohol) with an average of 15 ethylene oxide (EO) units. Therefore, its industrial name is also commonly written as C12-14 alcohol polyoxyethylene (15) ether or polyoxyethylene (15) lauryl to myristyl ether.
From the molecular structure, this product belongs to the typical alkyl polyoxyethylene ether type of surfactant, with the hydrophilic group being the polyoxyethylene chain (—(CH₂CH₂O)₁₅—H) and the lipophilic group being the C12-C14 linear alkyl chain. This amphiphilic molecular structure of "one head hydrophilic, one tail lipophilic" endows it with excellent emulsifying, wetting, dispersing, and solubilizing capabilities.
Common aliases of the product also include Peregal OS-15 and Peregal O-15. In industry practice, "Peregal" is the traditional Chinese trade name for fatty alcohol polyoxyethylene ether products. The product appears as a white waxy solid, with a high HLB value, making it suitable as the main emulsifier for O/W emulsion systems.
| Parameter Item | Parameter Description |
|---|---|
| Chemical Name | Fatty alcohol polyoxyethylene (15) ether |
| CAS Number | 58265-74-0 |
| Aliases | AEO-15, Peregal OS-15, Peregal O-15, C12-14 alcohol polyoxyethylene (15) ether, Polyoxyethylene (15) lauryl to myristyl ether |
| Ion Type | Nonionic surfactant |
| Lipophilic Group | C12-C14 linear alkyl chain |
| EO Number (Moles of Ethylene Oxide Addition) | 15 |
| Product Appearance | White waxy solid |
Based on the chemical properties of this component, OS-15 (AEO-15) is widely used in many fields such as industrial and household detergents, textile dyeing leveling agents, papermaking deinking agents, leather processing auxiliaries, metal surface cleaners, cosmetic O/W emulsifiers, and pesticide emulsifiers and wetting agents. Its nonionic nature gives it good compatibility with anionic, cationic, and other nonionic surfactants for compounding.
This product is classified under GHS as skin irritant (H315) and eye irritant (H319). During operation, wear protective gloves and goggles to avoid direct contact. Storage temperature should be kept between 5 and 35°C, avoiding freezing; if frozen, allow natural thawing at room temperature and do not heat with open flames.