XPO-5 is a light yellow to amber transparent viscous liquid (active content ≥60%), belonging to the anionic surfactant category, with an HLB value of 10–12, easily soluble in oil, and dispersible in water. It is usually added directly to the formulation system. It is recommended to add it slowly under stirring conditions to ensure full dispersion and emulsification. For water-based systems, the product can be premixed with the oil phase components before adding water for dilution. For emulsion polymerization processes, it is typically dissolved in the water phase to participate in the reaction. Due to its low to moderate foaming characteristics, it is particularly suitable for process scenarios where large amounts of foam are undesirable.
The performance of this product covers three main functions: emulsification, wetting, and dispersion, while also exhibiting excellent acid-base stability and hard water adaptability, maintaining high efficiency in complex systems (such as high salt, slightly acidic, or slightly alkaline environments). The critical micelle concentration (CMC) is 0.1–0.5 g/L, with a surface tension range of 32–38 mN/m, indicating that it can exert surfactant activity at relatively low concentrations.
The following dosages are empirical reference ranges from general industry practices, not exact recommended values from the Guoli Chemical Database. Actual usage should be determined through experiments based on specific formulations and process requirements.
| Application Field | Recommended Dosage | Usage Instructions |
|---|---|---|
| Pesticide Emulsifier | 2%–10% (based on total formulation weight) | Premix with oily active ingredients and solvents, then dilute with water to form an emulsion in water (EW) or microemulsion (ME), enhancing the uniformity of the spray solution and field application effectiveness. |
| Emulsion Polymerization Emulsifier | 1%–4% (based on monomer weight) | Generally added to the water phase to participate in the polymerization reaction, effectively emulsifying monomers and stabilizing latex particles, helping to control polymer particle size distribution. |
| Textile Auxiliaries | 0.5–3 g/L (working solution concentration) | Applied as a wetting agent or emulsifier in pretreatment and dyeing processes, improving fiber treatment uniformity and dye penetration. |
| Industrial Detergents | 1%–5% (based on total formulation weight) | Suitable for heavy-duty cleaning scenarios such as metal degreasing and hard surface cleaning. It can be used in combination with nonionic surfactants and builders to enhance detergency. |
Synergistic Blending: XPO-5 can be blended with nonionic surfactants (such as fatty alcohol polyoxyethylene ethers, alkylphenol polyoxyethylene ethers) to synergistically improve emulsification efficiency and dispersion stability. In pesticide formulations, it is often combined with other anionic or nonionic emulsifiers to form composite emulsification systems.
Operational Key Points: This product has certain hygroscopicity. After opening the drum, it should be used as soon as possible and resealed. During use, it is recommended to slowly add the product under stirring conditions to avoid high-speed shear causing foam (this product has low to moderate foam, but rapid stirring may still introduce bubbles). For viscous systems, it can be prediluted with a small amount of solvent or water before adding.
Water Adaptability: This product has good hard water adaptability, maintaining stable emulsification performance even in moderately hard water. It meets most industrial application requirements without the need for additional chelating agents.