OPE-105 (CAS: 121809-82-3) belongs to the alkylphenol ethoxylate nonionic surfactant family. It appears as a colorless to light yellow transparent liquid or flowable paste, offering good fluidity and operability for precise metering and compounding. The product maintains stable interfacial activity over a wide range of temperatures and media conditions, making it an indispensable key component in many industrial formulations.
Its excellent emulsifying ability is demonstrated by efficient emulsification of various oil phases and organic solvents, producing fine and stable emulsions that significantly enhance formulation compatibility and long-term storage stability. Meanwhile, OPE-105 rapidly reduces surface tension, achieving fast wetting and deep penetration on fabrics, metal surfaces, and porous materials, effectively shortening processing time. In terms of dispersibility, the product provides strong dispersion of pigments, fillers, and solid particles, effectively preventing agglomeration and sedimentation, ensuring system uniformity.
Another outstanding advantage of OPE-105 is its broad chemical resistance—it maintains stable interfacial activity under acidic, alkaline, and high-hardness water conditions, resisting hydrolysis or deactivation, and adapting to harsh operating environments. Additionally, its excellent formulation compatibility allows compounding with anionic, cationic, and other nonionic surfactants, producing synergistic effects that greatly expand its application scope.
| Parameter | Specification/Description |
|---|---|
| Product Name | OPE-105 (Octylphenol Ethoxylate) |
| CAS Number | 121809-82-3 |
| Product Type | Nonionic Surfactant |
| EO Addition Number | 10.5 mol |
| Physical Form | Colorless to light yellow transparent liquid or flowable paste |
| Ionicity | Nonionic |
| Hydrophobic Group | Octylphenol |
| HLB Value (Reference Range) | Approximately 11–13 (Industry-wide reference value, not actual measured data from Guoli Chemical) |
| Chemical Stability | Resistant to acid, alkali, and high-hardness water |
| Compounding Compatibility | Can be compounded with anionic, cationic, and other nonionic surfactants |
Note: The HLB value in the table is an industry-wide reference range based on the chemical structure of octylphenol ethoxylate (10.5EO). Guoli Chemical product database currently does not provide actual measured HLB values, cloud point, hydroxyl value, or other specific physicochemical parameters.
Textile Industry: Used as scouring penetrant and leveling auxiliary, providing rapid penetration and emulsification of waxes and oils during desizing and boiling-off processes for cotton, linen, and other fibers, improving capillary effect and whiteness, promoting uniform dye uptake. Recommended dosage adjusted according to process conditions.
Metalworking and Rust Prevention: Applied in cutting fluids, grinding fluids, and rust-preventive oils to form high-strength lubricating film, reducing friction coefficient and removing processing heat; in water-based rust-preventive systems, it adsorbs on metal surfaces to form a protective layer for inter-process and short-term storage rust prevention.
Industrial Cleaning and Coating: Used to formulate efficient degreasing cleaners for rapid removal of mineral oils and dirt from metal and plastic surfaces, suitable for spray, ultrasonic, and other cleaning processes at ambient or heated temperatures; serves as wetting and dispersing component in water-based and solvent-based coatings to promote pigment wetting and prevent floating and flooding.
Pesticide Formulations: Used as emulsifier in emulsifiable concentrate and emulsion in water formulations, enabling oil-soluble active ingredients to spontaneously disperse in water to form stable emulsions; used as dispersant in water suspension concentrates and wettable powders to prevent pesticide particle agglomeration and sedimentation, maintaining long-term storage stability of the formulation.
Leather and Paper: Used in degreasing processes for raw hides and wet blue leather, penetrating between leather fibers to emulsify natural oils; in waste paper deinking processes, it promotes ink detachment and dispersion, while also serving as an antistatic agent to reduce static accumulation on paper and synthetic fiber surfaces.