The chemical name of Peregal O-3 is fatty alcohol polyoxyethylene (3) ether, with INCI name Laureth-3 and CAS number 68439-49-6. This product is manufactured by Guoli Chemical using naturally derived C12-14 fatty alcohol as starter material, which undergoes addition polymerization with ethylene oxide. The general molecular structure formula can be expressed as C12-14H25-29O(C2H4O)3H.
From the perspective of composition structure, the molecule of Peregal O-3 is dominated by lipophilic long-chain alkyl groups, while also containing a short-chain hydrophilic group composed of 3 ethylene oxide units. This structural characteristic endows it with good lipophilicity and moderate hydrophilicity. In aqueous systems, it exists in a dispersed state rather than complete dissolution, making it particularly suitable for constructing water-in-oil (W/O) emulsion systems and exerting excellent wetting and spreading functions in processes such as degreasing, penetration, and leveling.
The active content of commercial Peregal O-3 reaches ≥99%. The product appearance is a colorless to slightly yellowish liquid or paste. Besides the main component fatty alcohol polyoxyethylene (3) ether, it contains only trace amounts of free alcohol (≤1.0%) and moisture (≤1.0%), essentially free of other functional additives, belonging to a high-purity, single-component nonionic surfactant.
| Parameter Item | Specification or Value |
|---|---|
| Chemical Name | Fatty alcohol polyoxyethylene (3) ether |
| INCI Name | Laureth-3 |
| CAS Number | 68439-49-6 |
| Initiator | Natural C12-14 fatty alcohol |
| Ethylene Oxide Addition Number | 3 moles |
| Ionic Type | Nonionic |
| Active Content | ≥99% |
| Free Alcohol Content | ≤1.0% |
| Moisture | ≤1.0% |
| Molecular Weight | approx. 330 |
| HLB Value | 6.5~8.5 |
As a pure fatty alcohol polyoxyethylene (3) ether product, the usage direction of Peregal O-3 in formulations is determined by its molecular structure: dominated by lipophilicity with a low HLB value (6.5~8.5), it is therefore more suitable for use as a water-in-oil emulsifier. In systems with a high oil phase ratio, such as pesticide emulsifiable concentrates, industrial lubricating emulsions, oil-based cleaning agents, and cosmetic creams, adding an appropriate amount of Peregal O-3 can yield a uniform and stable emulsion. In textile printing and dyeing, it can be used alone or in combination as a leveling agent and penetrating agent; in metal processing and industrial cleaning, it exerts excellent degreasing, emulsifying, wetting, and penetrating effects.