Mastering AEO Series: Optimizing Fatty Alcohol Ethoxylates (AEO-3 to 9)
The AEO series fatty alcohol ethoxylates (C12-C14 based) represent one of the most versatile classes of non-ionic surfactants in industrial chemistry. From high-efficiency detergents to emulsifiers in agrochemical SC formulations, AEO-3, AEO-7, and AEO-9 provide the precise HLB control required for stable surface activity.
Kemaix AEO Portfolio: AEO-3/7/9 Specifications | Request Bulk Pricing & Samples
Technical Comparison: AEO-3, AEO-7 vs AEO-9
| Product Code | HLB Value | Cloud Point (1% aq.) | Primary Industrial Use |
|---|---|---|---|
| AEO-3 | 8.0 – 9.0 | Oil-soluble | W/O Emulsifier, chemical intermediate |
| AEO-7 | 12.0 – 13.0 | 50 – 60°C | Laundry detergents, scouring agents |
| AEO-9 | 13.0 – 14.5 | 75 – 85°C | Heavy-duty cleaners, degreasers |
What is the AEO Series?
AEO surfactants are synthesized by the addition of ethylene oxide (EO) to natural or synthetic fatty alcohols (usually C12 to C14). The number following “AEO” (e.g., AEO-9) represents the average number of moles of ethylene oxide added to each mole of alcohol.
As the EO chain length increases, the surfactant’s properties shift from lipophilic (oil-loving) to hydrophilic (water-loving). You can view our full technical specifications on our AEO Product Page.
Technical Comparison: AEO-3, AEO-7 vs AEO-9
| Product Code | HLB Value | Cloud Point (1% aq.) | Primary Industrial Use |
|---|---|---|---|
| AEO-3 | 8.0 – 9.0 | Oil-soluble | W/O Emulsifier, chemical intermediate |
| AEO-7 | 12.0 – 13.0 | 50 – 60°C | Laundry detergents, scouring agents |
| AEO-9 | 13.0 – 14.5 | 75 – 85°C | Heavy-duty cleaners, degreasers |
1. AEO-3: Oil-Soluble
Primary Role: Lipophilic W/O Emulsifier.
Top Usage: Chemical intermediate & anti-foaming agent for industrial cleaning formulations.
2. AEO-7: Versatile Wetting
Primary Role: The “All-rounder” Penetrant.
Top Usage: Textile scouring & fiber penetration to ensure even dye finishing.
3. AEO-9: Detergency Power
Primary Role: Hydrophilic O/W Emulsifier.
Top Usage: High-efficiency laundry detergents and heavy-duty industrial degreasers.
Why Choose KEMAIX AEO Series?
At KEMAIX, we don’t just supply chemicals; we provide stability.
Ensuring consistent performance and predictable results across every batch.
Guaranteed low levels of unreacted alcohol and 1,4-Dioxane for safer formulations.
Reliable, streamlined supply chains optimized for our international buyers.
FAQ: Common Questions About Fatty Alcohol Ethoxylates (AEO)
Q1: Is AEO-7 or AEO-9 better for household laundry detergents?
For liquid detergents, AEO-9 is generally superior due to its higher HLB value and stronger detergency against complex organic oils. However, many formulators use a blend of AEO-7 and AEO-9 to balance cost-effectiveness and performance across different wash temperatures.
Q2: Can AEO surfactants be mixed with anionic surfactants like SLES?
Yes. One of the greatest advantages of the AEO Series is its non-ionic nature, which provides excellent compatibility with anionic, cationic, and other non-ionic surfactants. Mixing AEO with SLES often produces a synergistic effect, enhancing both foaming and grease removal.
Q3: How does the “Cloud Point” affect the choice of AEO?
The cloud point is the temperature above which the surfactant solution becomes turbid and loses its effectiveness. If your industrial cleaning process involves high temperatures (>50°C), you should choose a grade with a higher cloud point, such as AEO-9, or add stabilizers to ensure the formula remains clear and active.
Q4: Are KEMAIX AEO products biodegradable?
Yes, the AEO series derived from linear fatty alcohols is considered readily biodegradable. This makes them an environmentally responsible choice for both household and industrial cleaning applications, meeting modern global regulatory standards.
Q5: What is the shelf life of AEO-7 and AEO-9?
When stored in a cool, dry, and well-ventilated warehouse in original sealed packaging, the shelf life is typically 24 months. It is important to prevent exposure to moisture and extreme temperatures to maintain chemical stability.
Conclusion
Selecting between AEO-3 and AEO-9 isn’t just about solubility—it’s about the chemistry of your specific interface. Whether you are formulating a heavy-duty degreaser or a delicate textile auxiliary, KEMAIX is here to support your technical journey.
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