Agricultural Emulsifier 600 (CAS No.: 99734-09-5) is chemically defined as tristyrylphenol polyoxyethylene ether (Polyoxyethylene tristyrylphenol ether) and is not a mixture of multiple substances. Its molecular structure consists of a hydrophobic group (tristyrylphenol) and a hydrophilic group (polyoxyethylene chain, an ethylene oxide EO adduct), with an addition number n≈20 and a molecular weight of approximately 1300. This product is a nonionic surfactant widely used in pesticide formulations and industrial auxiliaries.
The product is a light yellow to brownish yellow viscous liquid, readily soluble in water. The pH of a 1% aqueous solution ranges from 5.0 to 7.0, and the cloud point is ≥90°C. Its HLB value is 13.5, providing excellent emulsifying, wetting, and dispersing capabilities. It exhibits outstanding emulsifying power for various oil phases and solvent systems, forming stable emulsions that resist separation.
In formulation applications, Agricultural Emulsifier 600 can be used as a primary or auxiliary emulsifier. It demonstrates good compatibility with anionic, cationic, and other nonionic surfactants, enabling synergistic effects. Additionally, its chemical properties remain stable under normal temperature conditions, with resistance to acids, alkalis, and hard water. It maintains stable performance across a wide pH range and in high-hardness water.
| Parameter | Specification |
|---|---|
| Chemical Name | Tristyrylphenol polyoxyethylene ether |
| CAS No. | 99734-09-5 |
| Molecular Formula | C6H5C(C8H8)3O(C2H4O)nH, n≈20 |
| Molecular Weight | ~1300 |
| Ionic Type | Nonionic |
| Active Content | ≥99.0% |
| Appearance | Light yellow to brownish yellow viscous liquid |
| HLB Value | 13.5 |
| Cloud Point (1% aqueous solution) | ≥90℃ |
| pH (1% aqueous solution) | 5.0~7.0 |
| Solubility | Readily soluble in water |
Agricultural Emulsifier 600 is suitable for various pesticide formulations (emulsifiable concentrates, oil-in-water emulsions, microemulsions, etc.), significantly improving the dispersibility of technical materials and emulsion stability, thereby enhancing the effective duration of efficacy. It can also be used as a leveling agent in textile dyeing and printing, an emulsifying and penetrating component in industrial cleaning agents, and an emulsifying formulation component in metalworking fluids (cutting fluids, grinding fluids). It is recommended to conduct formulation screening based on specific needs. Typically, combining it with anionic emulsifiers (e.g., Agricultural Emulsifier 500 series) yields superior synergistic emulsifying effects.