MOA-4 (AEO-4) is a nonionic surfactant based on C12-14 fatty alcohols. It appears as a colorless to slightly yellow transparent liquid with an HLB value of approximately 9~10. It is readily soluble in oils and organic solvents, and slightly soluble in water. It is typically used by direct addition to the formulation system, mixing well with other components under stirring. Due to its viscosity of about 60 mPa·s (25°C), it has good fluidity, facilitating operation and metering at room temperature.
When using, the addition method can be determined based on the oil phase type of the target system and the desired emulsion type (O/W type): For emulsification applications, first dissolve MOA-4 in the oil phase, then mix with the water phase for emulsification; For cleaning and penetration applications, it can be added directly to water with stirring, and compounding with anionic or amphoteric surfactants can produce synergistic effects. The product is chemically stable, resistant to acids, alkalis, and hard water, maintaining stable performance in complex systems.
It should be noted that the Guoli Chemical product database does not list precise dosage data for each application field. The reference dosages in the "Application Suggestions" below are recommended ranges based on the product characteristics and industry practice experience. The specific dosage should be optimized through gradient tests according to the actual formulation system, process conditions, and performance requirements.
Based on the characteristics and typical application scenarios of MOA-4 (AEO-4), the reference dosages for various fields are as follows (data source: industry common reference values, not direct data from the Guoli Chemical database):
Usage Tips: Since MOA-4 has a low cloud point (approximately 25~30°C for a 1% aqueous solution), pay attention to solubility changes when used in high-temperature systems; the product is also low-foaming, making it particularly suitable for applications requiring rapid defoaming or low foam.
| Parameter | Value |
|---|---|
| Appearance | Colorless to slightly yellow transparent liquid |
| Ionic Type | Nonionic |
| HLB Value | 9~10 |
| Active Content | ≥99% |
| pH (1% Aqueous Solution) | 5.0~7.0 |
| Cloud Point (1% Aqueous Solution) | Approximately 25~30°C |
| Hydroxyl Value | 150~165 mgKOH/g |
| Density (20°C) | Approximately 0.96 g/cm³ |
| Kinematic Viscosity (25°C) | Approximately 60 mm²/s |
| Flash Point (Closed Cup) | >180°C |
| Moisture Content | ≤0.5% |
| Free Alcohol | ≤1% |
| Solubility | Readily soluble in oils and organic solvents, slightly soluble in water (dispersible in water) |
| Foam Characteristics | Low foaming |
| Chemical Stability | Stable, resistant to acids, alkalis, and hard water |