Fatty alcohol polyoxyethylene ether LAE-9 is a nonionic surfactant, and its chemical nature is a fatty acid polyoxyethylene ester compound. This product uses naturally derived lauric acid (dodecanoic acid) as the hydrophobic raw material, which is obtained through the addition condensation reaction with 9 moles of ethylene oxide (EO). The molecular structure contains hydrophilic polyoxyethylene chains and hydrophobic lauric acid fatty chains.
Its INCI name is PEG-9 Laurate, with CAS number 9004-81-3. Common aliases include: polyoxyethylene (9) laurate, polyethylene glycol-9 laurate, polyoxyethylene monolaurate, etc. The "9" represents the average number of moles of ethylene oxide added to the molecule, which determines the hydrophilic-lipophilic balance (HLB) value of the product as well as its emulsifying, solubilizing, and other application properties.
It should be noted that the addition reaction of ethylene oxide is a polymerization reaction, so the actual product is a mixture of homologues with different EO addition numbers, and 9 is the average degree of polymerization. This component structure gives LAE-9 excellent emulsifying, wetting, dispersing, and solubilizing abilities, making it widely used in fields such as daily chemicals, textiles, pesticides, and metal processing.
| Parameter Item | Parameter Value |
|---|---|
| Chemical Name | Polyoxyethylene (9) Laurate |
| INCI Name | PEG-9 Laurate |
| CAS Number | 9004-81-3 |
| Product Type | Nonionic Surfactant |
| Main Component | Fatty Alcohol Polyoxyethylene Ether (average EO addition number 9) |
| Hydrophobic Group | Lauric Acid (Dodecanoic Acid, C12 Fatty Acid) |
| Hydrophilic Group | Polyoxyethylene Chain (average 9 EO units) |
As a nonionic surfactant with a single effective component, LAE-9 mainly performs the following functions in formulations:
This product is a chemical substance. When using it, attention should be paid: harmful if swallowed (H302), causes skin irritation (H315), may cause serious eye damage (H318), very toxic to aquatic life with long-lasting effects (H410). During operation, wear chemical safety goggles, impermeable gloves, and other protective equipment. Avoid release into the environment.