Question

What are the main characteristics of tristyrylphenol polyoxyethylene ether 600-2, 600#-1?

Answer

The core features of tristyrylphenol polyoxyethylene ether 600#-2/600#-1 are: combining a multi-phenyl hydrophobic group with a polyoxyethylene chain, endowing it with excellent emulsifying and dispersing power, broad chemical compatibility, and superior wetting and spreading performance. 600-2 and 600-1 can achieve synergistic effects through differentiated EO addition numbers.

Core Characteristics and Advantages

Excellent emulsifying and dispersing power: The unique tristyrylphenol hydrophobic group in the molecule contains multiple benzene ring structures, which can form strong adsorption and anchoring capabilities for the oil phase system, achieving rapid emulsification and long-term stability for difficult oil phases, effectively preventing formulation stratification and precipitation. According to the Guoli Chemical Product Database, its critical micelle concentration (CMC) is approximately 0.02-0.05 g/L, and the surface tension of a 1% aqueous solution is about 32 mN/m (25°C), demonstrating extremely high surface activity efficiency.

Broad chemical compatibility: As a nonionic surfactant, this product exhibits excellent tolerance to inorganic salts, acids, alkalis, and hard water media. The product has stable chemical properties, is not prone to hydrolysis or oxidative degradation under normal storage and use conditions, can maintain active stability in complex formulation systems, and significantly expands application scenarios. HLB value is 11.5, cloud point is 50~60°C, and it has good water solubility and oil solubility (easily soluble in oil and water).

Synergistic effect of 600-2 and 600-1: 600-2 and 600-1 provide different hydrophilic-lipophilic balance ranges by adjusting the number of ethylene oxide additions (average EO about 9-10). The combined use of the two can form a denser and more stable interfacial film, producing a significant synergistic effect and achieving better formulation performance than a single variety. The product is low-foaming, with an active content of ≥99%, free alcohol ≤3%, and extremely high purity.

Technical Parameters

Parameter NameSpecification/Value
CAS Number99734-09-5
Ion TypeNonionic
Appearance (25°C)Light yellow to brownish-yellow liquid
HLB Value11.5
Cloud Point50~60°C
Active Content≥99%
pH Value (1% Aqueous Solution)5.0~7.0
Surface Tension (1% Aqueous Solution, 25°C)About 32 mN/m
Critical Micelle Concentration (CMC)About 0.02-0.05 g/L
Hydroxyl Value65-75 mg KOH/g
Acid Value≤1.0 mg KOH/g
Saponification Value≤2.0 mg KOH/g
Water Content≤1.0%
Density (25°C)About 1.05 g/cm³
Kinematic Viscosity (25°C)About 800 mm²/s
Refractive Index (25°C)1.490-1.500
Flash Point>150°C
Freezing Point<-10°C
Foaming CharacteristicLow foaming
Chemical StabilityStable in acids, alkalis, and electrolytes
HygroscopicityLow
Heavy Metals≤10 mg/kg
Arsenic≤2 mg/kg

Application Suggestions

Based on the Guoli Chemical Product Database, this product is designed for the following high-end application areas:

  • Agricultural Chemicals: As a core component of pesticide emulsifiers and dispersants, suitable for emulsifiable concentrates, water emulsions, suspension concentrates, and other formulations, significantly improving the thermodynamic stability and biological activity of the formulation.
  • Polymer Emulsion Polymerization: Provides excellent emulsifying, dispersing, and stabilizing effects in emulsion polymerization systems such as acrylates, styrene-acrylic, and vinyl acetate-acrylic, controlling latex particle size and distribution.
  • Textile Dyeing and Finishing Auxiliaries: Used as leveling agents, dispersants, and scouring agents, effectively dispersing dyes, preventing color spots, and improving leveling and color fastness.
  • Industrial Cleaners: Acts as a powerful emulsifying and detergency component in formulations such as metal cleaning and hard surface cleaning, resistant to acids and alkalis and easy to rinse.
  • Paper and Leather Chemicals: Used in deinking, internal sizing, coating processes, and in leather soaking, degreasing, and fatliquoring processes.

Safety and Storage Precautions

According to GHS classification, this product is classified as Skin Irritant (Category 2, H315) and Serious Eye Irritant (Category 2, H319). Nitrile rubber gloves and chemical safety goggles must be worn during operation. Flash point is above 150°C, so it is not classified as a flammable liquid. Recommended storage temperature is 5-35°C, avoiding repeated freeze-thaw cycles. Solidification due to low temperature or increased viscosity is a normal physical phenomenon; fluidity can be restored by appropriate warming and stirring at room temperature without affecting product quality. Packaging specifications: 50 kg plastic drum, 200 kg plastic drum, or IBC tote.