Tristyrylphenol Polyoxyethylene Ether 600-1 (CAS: 99734-09-5) is a low HLB nonionic surfactant with an HLB value of about 6. It is easily soluble in oil and dispersible in water. This solubility characteristic determines the key steps in its use: In most formulations, first dissolve or disperse this product in the oil phase/organic phase, stir thoroughly to homogenize, then mix with the water phase for emulsification. At room temperature, the product appears as a light yellow to brownish yellow liquid or paste. It may thicken at low temperatures; preheating to 20~30°C before use can improve fluidity, but prolonged high-temperature heating is not recommended.
This product has an effective content ≥99% and is a high-concentration product. In practical use, it should be reasonably diluted or compounded according to the target formulation system. Because it is not resistant to strong alkalis, pH control of the system is important when used in alkaline formulations. It is recommended to maintain a neutral to weakly acidic pH range of 5.0~7.0 to ensure optimal stability. As a nonionic surfactant, it is compatible with anionic, cationic, and other nonionic surfactants. It is often compounded with agricultural emulsifiers such as 500# and 700# to enhance comprehensive emulsifying performance.
During operation, this product is a non-hazardous substance, with low toxicity and non-irritating to skin. However, it is still recommended to wear conventional protective gloves and goggles. When adding, it should be added slowly with thorough stirring to avoid uneven dispersion due to local high concentration. The flash point of the product is above 200°C, posing no fire risk at room temperature operations.
| Application Field | Recommended Usage Method | Reference Dosage |
|---|---|---|
| Pesticide Emulsifier | Add this product together with the pesticide active ingredient and other emulsifier monomers (e.g., agricultural emulsifier 500#) into the oil phase in proportion, stir until completely dissolved and homogeneous, then slowly add the water phase for emulsification formulation, used for preparing organophosphorus and organochlorine emulsifiable concentrates. | The optimal proportion varies greatly with the formulation system and should be determined through orthogonal experiments. Usually accounts for 30%~60% of the total emulsifier components. |
| Coatings and Inks | Add during the grinding or high-speed dispersion stage, mix with pigments, resins, and solvents, utilizing its excellent wetting and dispersing ability to prevent pigment flocculation and sedimentation. | Typically 2%~8% of the pigment weight, the specific dosage should be optimized through dispersion experiments. |
| Textile Dyeing and Printing | When preparing the dye bath, first pre-disperse this product with warm water (40~50°C), then add it to the dye bath and stir evenly, used as a leveling agent and dispersant to promote uniform dye uptake. | Usually 0.5~3 g/L of the total dye bath volume. |
| Industrial Cleaning | Compound with other surfactants and add to the cleaning solution formulation, utilizing its low-foaming characteristics and strong penetrating power, suitable for circulating spray processes for metal cleaning and hard surface cleaning. | Generally accounts for 10%~30% of the total active ingredients in the cleaning formulation. |
| Parameter | Specification |
|---|---|
| Ionic Type | Nonionic |
| HLB Value | Approx. 6 |
| Effective Content | ≥99% |
| Appearance (Room Temperature) | Light yellow to brownish yellow liquid or paste |
| Solubility | Easily soluble in oil, dispersible in water |
| pH of 1% Aqueous Solution | 5.0~7.0 |
| Cloud Point | 45~55°C |
| Surface Tension | About 35 mN/m |
| Density (25°C) | 1.05 g/cm³ |
| Flash Point | >200°C |
| Foam Characteristic | Low foam |
| Alkali Resistance | Not resistant to strong alkalis |
Note: The above parameters are from measured data from the Guo Li Chemical product database.