The core advantage of Labiling/O-8 (fatty alcohol polyoxyethylene (8) ether, C12~14) lies in the precise match between the ethylene oxide addition number (EO=8) in its molecular structure and the C12-14 carbon chain. Among AEO series products on the market, those with lower EO numbers (e.g., AEO-3, AEO-5) are more oil-soluble, with HLB values between 6 and 10, mainly used for W/O emulsification or as lipophilic penetrants; while products with higher EO numbers (e.g., AEO-12, AEO-15) have strong hydrophilicity and high cloud points, but their penetrability and oil removal efficiency decrease. The EO number of Labiling/O-8 is exactly at the "inflection point": the HLB value of 11~12 endows it with excellent emulsification and solubilization capabilities for mineral oils, animal and vegetable oils, and various organic solvents, while maintaining a low surface tension of about 28~32 mN/m, and a penetrability (canvas settling method) of 15~30 seconds, balancing the two core properties of emulsification and permeability.
Compared with similar products, another major advantage of Labiling/O-8 is its excellent chemical stability and compatibility in compounding. According to data from the Guoli Chemical database, this product has an effective content of ≥99% and a free alcohol content of ≤1.0%. High purity means minimal interference from side reactions in formulations. It remains stable in acid, alkali, and high-concentration electrolyte salt solutions, with outstanding hard water resistance and no formation of calcium soap precipitates. This makes Labiling/O-8 perform excellently under harsh conditions such as high-temperature scouring in textile pretreatment (alkali resistance), industrial hard surface cleaning (salt resistance), and pesticide formulation emulsification (electrolyte resistance), while some similar low-EO products or those with more impurities may experience precipitation or reduced surface activity under the same conditions.
In addition, the cloud point (50~70°C, 1% aqueous solution) of Labiling/O-8 is just right—higher than that of low-EO products such as AEO-5 (usually <40°C) and lower than that of AEO-12 and others (usually >80°C). This means that in processes requiring a certain temperature, such as high-temperature washing and textile scouring, Labiling/O-8 will not easily precipitate and lose activity, while also having moderate foam characteristics, avoiding overflow problems and facilitating industrial operation and rinsing.
| Parameter | Labiling/O-8 (Guoli Chemical) | AEO-7 (Typical Counterpart) | AEO-9 (Typical Counterpart) |
|---|---|---|---|
| CAS Number | 68439-49-6 | 68439-50-9 | 68439-50-9 |
| EO Number | ≈8 | ≈7 | ≈9 |
| HLB Value | 11~12 | About 10~11 | About 12~13 |
| Cloud Point (1% Aqueous Solution) | 50~70°C | About 40~55°C | About 60~75°C |
| Effective Content | ≥99% | Common market ≥98% | Common market ≥98% |
| Penetrability (0.1%, Canvas Settling Method) | About 15~30 seconds | About 20~35 seconds | About 30~50 seconds |
| Surface Tension (1%, 25°C) | About 28~32 mN/m | About 27~31 mN/m | About 30~34 mN/m |
| Free Alcohol Content | ≤1.0% | Usually ≤2% | Usually ≤2% |
| Chemical Stability | Stable in acid, alkali, and salt solutions | Generally stable in acids and alkalis | Generally stable in acids and alkalis |
For textile printing and dyeing: Labiling/O-8, with its excellent alkali resistance and permeability, is particularly suitable for high-temperature scouring processes of cotton and blended fabrics. The recommended dosage is 0.5%~2% (based on fabric weight), which can effectively remove cotton wax and sizing, improving whiteness and capillary effect. For post-dyeing washing processes, a recommended dosage of 0.3%~1% is suggested, with strong ability to remove floating color without affecting the shade.
For industrial cleaning: In heavy oil degreasing formulations, Labiling/O-8 can be used as the main surfactant or compounded with anionic surfactants (e.g., sulfonic acid, AES), accounting for 20%~40% of the active matter in the formulation, balancing oil removal efficiency and rinsability. Compounding with AEO-5 can further enhance oil removal power.
For pesticide formulations: Used in emulsifiable concentrates, oil-in-water emulsions, and microemulsions, the recommended dosage is 3%~8% (based on total formulation), which can significantly improve the emulsification dispersion performance and dilution stability of the technical material. Better results are achieved when compounded with anionic emulsifiers (e.g., calcium salts).