The chemical name of MOA-9 is C12-14 alcohol polyoxyethylene (9) ether, belonging to the fatty alcohol polyoxyethylene ether nonionic surfactant family. The product appears as a colorless clear liquid to white paste (25°C), with an active content ≥99.0% and is easily soluble in water. Its HLB value is 13.6, indicating a hydrophilic surfactant, with a cloud point range of 55~65°C (1% aqueous solution). It remains clear in room temperature aqueous solutions, offering good ease of use.
From a performance perspective, MOA-9 offers four core advantages: First, outstanding emulsifying ability—effectively reduces oil-water interfacial tension and forms stable emulsions, with a surface tension as low as 28~32 mN/m (25°C, 0.1% aqueous solution) and a critical micelle concentration of only 0.03~0.05 g/L, indicating its effectiveness at very low concentrations; Second, excellent wetting and penetrating properties—standard canvas sinking test shows a penetration time of only 5~10 seconds (0.1% aqueous solution), quickly wetting various substrate surfaces; Third, superior dispersing and detergency performance—effectively suspends and disperses solid dirt particles, and is a low-foaming product, easy to rinse in industrial cleaning; Fourth, wide chemical compatibility—stable in acid, alkali, and hard water media, and can be flexibly compounded with anionic, cationic, and other nonionic surfactants, greatly enhancing formulation design freedom.
The product also features good environmental adaptability: excellent biodegradability, a solidification point of approximately 5~10°C, a flash point above 150°C, and stable storage at room temperature. These comprehensive properties make MOA-9 an indispensable high-efficiency auxiliary agent in fields such as textile dyeing and printing, industrial cleaning, pesticide formulations, metalworking, leather processing, papermaking deinking, and personal care.
| Parameter | Specification | Remarks |
|---|---|---|
| Ionic Type | Nonionic | — |
| Appearance (25°C) | Colorless clear liquid to white paste | — |
| Active Content | ≥99.0% | — |
| HLB Value | 13.6 | Hydrophilic |
| Cloud Point | 55~65°C | 1% aqueous solution |
| pH Value | 5.0~7.0 | 1% and 5% aqueous solution |
| Surface Tension | 28~32 mN/m | 25°C, 0.1% aqueous solution |
| Critical Micelle Concentration (CMC) | 0.03~0.05 g/L | 25°C |
| Penetrating Power | 5~10 seconds | Standard canvas sinking method, 0.1% aqueous solution |
| Solidification Point | Approx. 5~10°C | — |
| Foam Property | Low foaming | — |
| Density (25°C) | 1.00~1.05 g/cm³ | — |
| Hydroxyl Value | 85~100 mg KOH/g | — |
| Water Content | ≤0.5% | — |
| Free Alcohol | ≤2.0% | — |
| Flash Point | >150°C | — |
| Chemical Stability | Stable in dilute acid and alkali solutions | May hydrolyze in high temperature strong alkali |
Data source: Guoli Chemical Product Database.
Based on the comprehensive properties of MOA-9, the following dosage and application scenarios are recommended: