Introduction to AEO-9 fatty alcohol polyoxyethylene ether products 
Full name: Fatty Alcohol Polyoxyethylene Ether, abbreviated as AEO-9, also known as MOA-9, belongs to non-ionic surfactants 
CAS number: 68439-46-3 (C12-14 fatty alcohol polyoxyethylene ether, industrial use) 
Structural formula: \ (\ boldsymbol {RO - (CH2CH2O) _9H} \), R is a C ₁₂~C ₁₄ linear alkyl group; The number 9 represents an average addition of 9 moles of ethylene oxide (EO) 
>Addendum: The AEO series is an addition product of fatty alcohols and ethylene oxide. AEO-9 is the most classic combination of LAS (linear alkylbenzene sulfonic acid) in daily chemical and industrial cleaning formulas. LAS provides strong stain removal and foaming, while AEO-9 enhances emulsification, hard water resistance, and low-temperature cleaning power. 
1、 Physical and chemical properties 
1. Appearance (25 ℃) * *: White/milky white paste, turns colorless to light yellow transparent liquid when heated to around 40 ℃ 
2. HLB value: 12.5~14, water in oil (O/W) hydrophilic emulsifier 
3. Cloud point (1% aqueous solution): 75-82 ℃ (non-ionic property, above the cloud point, it will precipitate and become cloudy) 
4. Solubility: Easily soluble in water, ethanol, and ethylene glycol; Resistant to hard water and stable in weak acid and weak alkali environments 
5. Biodegradation: Does not contain APEO, has good biodegradability, and is much less irritating than LAS 
6. Density (25 ℃): 0.925~0.940 g/cm ³ 
2、 Product Features 
Excellent emulsifying, wetting, penetrating, dispersing, degreasing and cleaning abilities, outstanding emulsifying effects on animal and vegetable oils, mineral oils, and highly compatible. It can be combined with anions (LAS, SLES), cations, and other non-ionic surfactants to produce synergistic effects and hard water resistance. Calcium and magnesium ions do not affect cleaning performance; Good low-temperature solubility, suitable for low-temperature detergent formulations 
Low stimulation, no APEO, environmentally friendly non-ionic surface activity; Medium foam, can be matched with defoamer as required 
Cloud point characteristics: When the temperature exceeds the cloud point, the aqueous solution becomes turbid. After cooling, it returns to transparency without failure 
3、 Main application areas 
1. Daily chemical washing (mainstream) 
Laundry detergent, dishwashing liquid, kitchen heavy oil cleaning agent, industrial liquid cleaning agent; Often compounded with LAS to enhance oil removal efficiency and reduce system irritation. 
2. Textile printing and dyeing 
Cotton/synthetic fabric refining agent, wool degreaser, leveling agent, wetting and penetrating agent, pre-treatment degreaser. 
3. Industrial cleaning 
Metal degreaser, mechanical grease cleaner, glass/floor cleaner, spray cleaner. 
4. Other industries 
Pesticide emulsifier, paint lotion emulsifier, cosmetic O/W emulsifier, leather degreaser, glass fiber oil agent.