How to use 600P-85% tristyrylphenol polyoxyethylene ether phosphate? What is the recommended dosage?

600P-85% has no fixed dosage standard. It should be added during the acid or alkali adjustment stage of the formulation, and the optimal amount should be determined through gradient tests.

Detailed Explanation

600P-85% tristyrylphenol polyoxyethylene ether phosphate is an anionic surfactant with high active matter content (≥85%), appearing as a light yellow to yellow high-viscosity liquid. Its unique phosphate ester structure imparts both nonionic and anionic surfactant characteristics, with an HLB value of approximately 12.5. It is readily soluble in water and various organic solvents, and is a low-to-medium foaming product.

In terms of usage, it is recommended to add this product during the acid or alkali adjustment stage of formulation development, when the pH of the system has not yet been finalized, allowing the phosphate ester groups to fully disperse and participate in interfacial regulation. After addition, thorough stirring and mixing are required to ensure complete dissolution or emulsification in the system. Due to the varying requirements for emulsification, dispersion, wetting, and other properties in different application scenarios, Guoli Chemical officially recommends determining the optimal addition ratio through gradient tests, while optimizing synergy with other auxiliaries (such as other nonionic surfactants, thickeners, antifreeze agents, etc.).

This product contains 40%–60% mono-phosphate ester, 20%–40% di-phosphate ester, and ≤0.5% free phosphoric acid. The pH of a 1% aqueous solution is 2.0–3.5, indicating acidity, so neutralization adjustment is necessary if the formulation system is alkaline. The product exhibits outstanding electrolyte tolerance, maintaining stable interfacial activity in high-salt and high-hardness water systems.

Technical Parameters

Application Recommendations

The Guoli Chemical Product Database does not provide fixed dosage values for various application fields. The following are general reference dosage ranges based on industry practice experience. The actual optimal dosage must be verified through gradient tests.

• Pesticide Formulations (EC/EW/ME): As an emulsifier, the recommended dosage is generally 3%–10% of the total formulation, often used in combination with nonionic emulsifiers (such as 600# series, BY series, etc.) to optimize emulsification stability and thermal storage performance. In suspension concentrates as a wetting dispersant, the recommended dosage is 1%–5%.
• Textile Printing and Dyeing Auxiliaries (Leveling Agents/Detergents): The recommended working concentration is 0.5–2 g/L, adjusted according to the dye type, fiber material, and process temperature (this product has good high-temperature resistance with a flash point >150°C).
• Metalworking Fluids: As an emulsifier and anti-rust additive, the recommended addition amount is 5%–15% of the total concentrate formulation, formulated in synergy with base oils, rust inhibitors, extreme pressure agents, etc.
• Industrial Cleaners: Recommended addition of 2%–8% in concentrated formulations, utilizing its low foam characteristics and electrolyte tolerance to enhance detergency and anti-corrosion effects.
• Waterborne Coatings and Ink Pigment Dispersion: Added at 1%–5% of the pigment/filler mass to effectively prevent floating, flooding, and pigment sedimentation.
• Emulsion Polymerization: Recommended dosage of 0.5%–3% of the total monomer mass, used to control the particle size distribution of latex particles and improve the stability of polymer emulsions.
• Oilfield Chemicals: As an oil displacement agent or demulsifier, the addition amount varies greatly depending on well conditions. Generally, the recommended working concentration is 0.1%–0.5% of the total fluid volume, with the specific amount confirmed through on-site experiments.