Compared to the nonionic products in the same tristyrylphenol polyoxyethylene ether series in the Guoli Chemical database ( such as agricultural emulsifier 600, 600-1, 600-2, etc. ), the greatest differentiating advantage of 600P-85% lies in the introduction of phosphate anionic groups into its molecular structure. While ordinary 600 series products are pure nonionic surfactants, 600P-85%, after phosphation modification, combines the dual properties of nonionic surfactants (excellent emulsification and dispersion abilities) and anionic surfactants (strong electrolyte tolerance, excellent wetting and spreading performance), demonstrating stronger interfacial control capabilities in complex formulation systems. Its HLB value is approximately 12.5, falling within a range with good versatility for oil-water emulsification, and the reasonable ratio of monoester content 40%~60% and diester content 20%~40% achieves a good balance between emulsification efficiency and stability.
Compared to the anionic product in the same series, XPO-5 tristyrylphenol polyoxyethylene ether ammonium sulfate, 600P-85% adopts a phosphate group which has better thermal stability and hydrolysis resistance than the sulfate group, making it particularly suitable for high-temperature operating environments (such as high-temperature leveling in textiles, downhole operations in oil fields, etc.). In addition, the free phosphoric acid content of 600P-85% is ≤0.5% (calculated as H₃PO₄), much lower than general industrial phosphate ester products, effectively reducing the risk of corrosion to metal equipment, while also playing a synergistic role of emulsification and rust prevention in metalworking fluids, an additional function that is difficult for ammonium sulfate type products to achieve.
From the perspective of application breadth, the critical micelle concentration (CMC) of 600P-85% is only 0.01%~0.05%, and the surface tension can be reduced to 30~35 mN\/m (1% aqueous solution), meaning it can exhibit high interfacial activity at low usage concentrations, with prominent economic efficiency. Meanwhile, its low to medium foaming characteristics are significantly superior to the high foaming tendency of conventional anionic surfactants, offering greater practical value in scenarios with strict foam control requirements, such as industrial cleaning and textile dyeing and printing. In terms of formulation compatibility, 600P-85% can be flexibly compounded with nonionic, anionic, cationic, and amphoteric surfactants, with a scope far exceeding that of ordinary single ionic type products.
| Parameter Item | 600P-85% | Agricultural Emulsifier 600 (Nonionic) | XPO-5 (Ammonium Sulfate Type) |
|---|---|---|---|
| Ion Type | Anionic (phosphate ester) | Nonionic | Anionic (ammonium sulfate) |
| Active Content | ≥85% | High concentration (no specific ≥ value) | Not specified |
| HLB Value | 12.5 | Approximately 13~15 (n≈20) | No data available |
| pH of 1% Aqueous Solution | 2.0~3.5 | Neutral (approximately 6~7) | No data available |
| Acid Value (mg KOH\/g) | 70~110 | Not applicable | No data available |
| Surface Tension (1%, mN\/m) | 30~35 | No data available | No data available |
| CMC | 0.01%~0.05% | No data available | No data available |
| Foaming Characteristics | Low to medium foam | Medium foam | No data available |
| Electrolyte Tolerance | Strong | Fair | Good |
| Thermal Stability\/Hydrolysis Resistance | Good | Good | Fair (sulfate ester easily hydrolyzed) |
| Metal Anti-rust Property | Yes | No | No |
| Free Acid (calculated as H₃PO₄) | ≤0.5% | Not applicable | Not applicable |
| Appearance | Light yellow to yellow liquid | Light yellow to brownish yellow viscous liquid | Light yellow to amber liquid |
| CAS Number | None | 99734-09-5 | None |
Scenarios for priority use of 600P-85%: