OP-10 octylphenol polyoxyethylene ether is a nonionic surfactant prepared by addition polymerization of octylphenol (C₈H₁₇-C₆H₄-OH) as hydrophobic raw material and ethylene oxide (EO) as hydrophilic raw material in the presence of a catalyst. The "10" in its name indicates that the average number of ethylene oxide adducts is about 10 moles. The chemical structure can be expressed as: C₈H₁₇-C₆H₄-O-(CH₂CH₂O)₁₀-H, i.e., an octylphenyl group linked via an ether bond to a polyoxyethylene hydrophilic chain containing about 10 oxyethylene repeat units.
This product belongs to the octylphenol series within the alkylphenol polyoxyethylene ether (APEO) family in chemical classification. In its molecular structure, the octylphenyl part provides lipophilicity, endowing the product with excellent affinity for oil phases and organic substances; while the polyoxyethylene chain segment provides hydrophilicity, forming hydrogen bonds with water molecules through ether oxygen atoms, making the entire molecule amphiphilic (hydrophilic and lipophilic), thus capable of oriented arrangement at the oil-water interface and significantly reducing interfacial tension.
OP-10 produced by Guoli Chemical is a high-purity active content nonionic surfactant industrial product, appearing as a colorless to light yellow transparent liquid or paste (varies with temperature). The product has strong chemical stability, maintaining stable performance over a wide range of acid and alkali conditions, resistant to hard water, and has good compatibility with anionic, cationic, and other nonionic surfactants.
| Parameter Name | Description |
|---|---|
| Chemical Name | Octylphenol Polyoxyethylene (10) Ether |
| CAS Number | 9036-19-5 |
| Product Type | Nonionic Surfactant |
| Main Component | Polyoxyethylene Octylphenyl Ether (Octylphenol + approx. 10 EO) |
| Appearance | Colorless to light yellow transparent liquid or paste |
| Hydrophobic Group | Octylphenol (C₈H₁₇-C₆H₄-) |
| Hydrophilic Group | Polyoxyethylene chain (-(CH₂CH₂O)₁₀-H) |
| Ionic Type | Nonionic |
| Ethylene Oxide Adduct Number | About 10 moles (average) |
| HLB Value | Not available (typical value approx. 13.5, reference from similar products) |
| Cloud Point | Not available (typical value approx. 65-70°C, 1% aqueous solution, reference from similar products) |
| Flash Point (Closed Cup) | Greater than 200°C (typical value approx. 250°C) |
Since OP-10 consists of an octylphenol hydrophobic group and a polyoxyethylene hydrophilic chain, it possesses excellent emulsifying, wetting, penetrating, and dispersing properties, and is widely used in the following areas: