TERSPERSE 4896

Product Details

CasNo： 51811-79-1

MF： C17H31O6P

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Chemical and Physical Properties

• Chemical Structure: It belongs to the alkylphenol ethoxylate phosphate compound category. Its molecule contains lipophilic alkylphenol segments, hydrophilic polyoxyethylene chains, and phosphate groups, making it a typical anionic wetting and dispersing agent.
• Appearance and Physicochemical Indicators: It is usually a light yellow to brown liquid with a density of approximately 1.05~1.15 g/cm³ (at 20℃). The pH value (1% aqueous solution) is generally between 6.0~8.0. It has good water solubility and can be miscible with water in any proportion.

2. Mechanism of Action

• Wetting Effect: The alkylphenol segments in the molecule can quickly spread on the surface of pesticide technical particles, reducing the solid-liquid interfacial tension and enabling the technical particles to be rapidly wetted and dispersed by the aqueous phase.
• Dispersion and Stabilization Effect: The phosphate groups form a dense adsorption layer on the surface of pesticide particles through electrostatic repulsion and steric hindrance effects, preventing agglomeration between particles. At the same time, the polyoxyethylene chains form a hydration layer in the aqueous phase, further enhancing the kinetic stability of the system and ensuring that the suspension concentrate does not delaminate or settle during storage and transportation.

3. Key Application Technologies

• Addition Amount: Generally, it accounts for 2%~5% of the mass of pesticide technical (the specific amount needs to be adjusted according to the characteristics of the technical and the formula system; for example, the recommended addition amount for carbendazim suspension concentrate is 3%~4%).
• Addition Method: It can be directly added during the pre-dispersion stage of pesticide suspension concentrate preparation (when the technical is mixed with water for shearing), or added after compounding with other adjuvants (such as thickeners and antifreeze agents). It is necessary to ensure full mixing with the system.
• Compatibility Taboos: Avoid direct mixing with strong cationic surfactants (such as quaternary ammonium salts) to prevent the loss of dispersion performance due to charge neutralization.

4. Advantages and Market Value

• Environmental Friendliness: In the pesticide registration of regions such as Australia, its safety and environmental protection meet local regulatory requirements, and it can be used in the production of various high-value-added pesticide formulations.
• Cost-Effectiveness: Compared with similar imported dispersants (such as a certain brand's EFKA series), TERSPERSE 4896 has a lower procurement cost while ensuring performance, which can effectively reduce the formula cost of pesticide formulation enterprises.
• Technical Support: Huntsman Corporation can provide targeted formula optimization services, and customize adjuvant combination solutions including TERSPERSE 4896 according to the customer's technical type and formulation requirements.