Tristyrylphenol polyoxyethylene ether 600-2 (CAS No.: 99734-09-5) is a nonionic surfactant produced by Guoli Chemical using tristyrylphenol as the hydrophobic group via ethylene oxide addition polymerization. Its molecular structure contains multiple phenyl rings, providing strong adsorption and anchoring capabilities, making it outstanding in emulsification, dispersion, and wetting functions. At room temperature, the product appears as a light yellow viscous liquid to waxy solid, easily soluble in water and polar organic solvents such as methanol, ethanol, and acetone, and also exhibits good dispersibility in non-polar media like mineral oil.
This product is chemically stable, resistant to acids, alkalis, hard water, and various metal salts under normal usage conditions, and is not prone to hydrolysis or oxidative degradation, ensuring the long-term storage safety of the final formulation. Its waxy solid characteristics give it extremely low moisture sensitivity, making it less likely to absorb moisture and clump in humid environments, facilitating storage, transportation, and accurate metering.
| Parameter | Details |
|---|---|
| Product Name | Tristyrylphenol polyoxyethylene ether 600-2 |
| CAS No. | 99734-09-5 |
| Product Type | Nonionic surfactant |
| Appearance (Room Temperature) | Light yellow viscous liquid to waxy solid |
| Solubility | Easily soluble in water, methanol, ethanol, acetone, and other polar organic solvents |
| Chemical Stability | Resistant to acids, alkalis, hard water, and metal salts |
| HLB Value | Not available (can be adjusted by blending with 600-1) |
| Cloud Point | Not available |
| Flash Point | >150 °C, not classified as flammable liquid |
| Storage Temperature | Recommended 5–35 °C, avoid repeated freeze-thaw cycles |
1. Core Component in Pesticide Formulations: As an efficient nonionic emulsifier and dispersant, suitable for various formulations such as emulsifiable concentrates (EC), emulsions in water (EW), microemulsions (ME), and suspension concentrates (SC). Its excellent interfacial adsorption capability significantly reduces oil-water interfacial tension, improving the spreading and penetration of the spray liquid on plant leaves, thereby enhancing efficacy and thermodynamic stability of the formulation.
2. Polymer Emulsion Polymerization: Used as an emulsifier in emulsion polymerization systems such as acrylates, styrene-acrylic, and vinyl acetate-acrylic, effectively controlling latex particle size and distribution, and significantly improving the mechanical and chemical stability of the synthesized emulsion.
3. Industrial Cleaning and Textile Auxiliaries: Used in formulating high-efficiency degreasers and hard surface cleaners, capable of rapidly stripping mineral oil and organic soils, resistant to acids and alkalis, and easy to rinse off. In textile dyeing and printing, it serves as a leveling agent and penetrant component, enhancing dye dispersibility and levelness, preventing spot formation.
Blending Recommendation: By adjusting the number of ethylene oxide adducts, 600-2 and 600-1 offer different hydrophile-lipophile balance ranges. When used together, they form a denser and more stable interfacial film, producing significant synergistic effects and achieving better formulation performance than using either alone.