OP-40 Octylphenol Polyoxyethylene Ether (CAS number: 9036-19-5) is a nonionic surfactant, with the chemical name Polyoxyethylene (40) octylphenyl ether. Its molecular structure contains both a lipophilic octylphenyl group and a hydrophilic polyoxyethylene chain (40 EO units), which endows it with excellent surface-active properties, enabling it to play a key role in various industrial scenarios.
The core advantages of this product are reflected in three aspects: First, excellent emulsifying performance, enabling efficient preparation and stabilization of oil-in-water (O/W) emulsions, and significantly reducing interfacial tension even at low dosages; Second, outstanding dispersing and detergency, providing excellent dispersion, suspension, and removal effects for various solid particles and oil stains, while maintaining stable performance under high temperature and high shear conditions; Third, broad chemical compatibility, maintaining good stability and compatibility in certain concentrations of acid, alkali, and hard water environments, and can be compounded with nonionic, anionic, and cationic auxiliaries, making it a reliable universal component in complex formulation systems.
With these characteristics, OP-40 has been widely used in various demanding industrial fields such as textile dyeing and printing (high-temperature leveling agents, dispersants, and detergents), pesticide formulations (emulsifiers and synergists), emulsion polymerization (primary emulsifier for systems like acrylics), industrial and household cleaning (metalworking, hard surface, and liquid detergents), oilfield chemicals, leather degreasing agents, and paper deinking agents.
| Parameter Item | Description |
|---|---|
| Product Name | OP-40 Octylphenol Polyoxyethylene Ether |
| CAS Number | 9036-19-5 |
| Aliases | Emulsifier OP-40; Polyoxyethylene (40) octylphenyl ether; Polyoxyethylene octylphenol ether (40) |
| Ion Type | Nonionic surfactant |
| EO Number | 40 |
| Emulsion Type | Oil-in-water (O/W) type |
| Chemical Stability | Resistant to certain concentrations of acid, alkali, and hard water |
Safety Warning: This product is harmful if swallowed or in contact with skin, may cause serious eye damage and skin irritation, and is very toxic to aquatic life with long-lasting effects (H410). When handling, wear chemical safety goggles, chemically resistant protective gloves and protective clothing, and ensure good ventilation in the workplace. Do not discharge the product or its containers directly into soil, waterways, or drainage systems.
Storage Recommendation: Store in a cool, dry, well-ventilated warehouse. The temperature is recommended to be controlled between 5°C and 30°C. Keep the container tightly sealed, away from heat sources and ignition sources, and avoid direct sunlight and moisture.