Guoli Chemical's isomeric tridecyl alcohol polyether series includes four core models: E-1303 (n≈3), E-1306 (n≈6), E-1310 (n≈10), and E-1340 (n≈13). The C13 alcohol polyether E-1340 molecules have polymerized approximately 13 ethylene oxide (EO) units, making it the product with the highest EO addition in the series. As the EO chain length increases, the hydrophilicity, cloud point, and HLB value of the product gradually improve. Therefore, E-1340 has significant advantages in the preparation of oil-in-water (O/W) emulsions, wetting and dispersion in aqueous systems, and formulation scenarios requiring high hydrophilicity.
Compared with traditional linear fatty alcohol polyoxyethylene ethers (such as AEO series) on the market and alkylphenol polyoxyethylene ethers (such as NP/TX series) that are gradually being banned, C13 alcohol polyether E-1340 uses isomeric tridecyl alcohol as the initiator. The branched structure endows the product with a lower pour point, better low-temperature fluidity, and stronger wetting and penetrating power, while maintaining stable chemical performance in hard water and acidic/alkaline environments. In addition, E-1340 does not contain alkylphenol structures, complying with APEO-free environmental regulations, and has a 28-day biodegradation rate greater than 60%, making it an easily biodegradable substance with significant advantages in environmental compliance.
In applications with strict requirements for emulsion stability, such as emulsion polymerization and pesticide emulsifiable concentrates, E-1340, with its longer EO segments providing a steric hindrance effect, can effectively prevent droplet coalescence and generate fine and long-term stable emulsion systems. In contrast, E-1303 and E-1306, due to their weaker hydrophilicity, are more suitable for water-in-oil (W/O) emulsification or as auxiliary components in compound systems; although E-1310 is already water-soluble, it still falls short of E-1340 in emulsion particle size control and long-term system stability.
| Product Model | EO Number (approx.) | Appearance | Hydrophilicity | HLB Value (theoretical) | Core Functional Positioning |
|---|---|---|---|---|---|
| Isomeric alcohol polyether E-1303 | 3 | Colorless to light yellow liquid | Lipophilic | About 8~9 | W/O emulsification, oil-based dispersion |
| Isomeric tridecyl alcohol polyether E-1306 | 6 | Colorless to slightly yellow transparent liquid | Moderate | About 10~11 | Penetration wetting, scouring agent |
| Isomeric tridecyl alcohol polyether E-1310 | 10 | Colorless to light yellow transparent liquid | Good | About 12~13 | General emulsification, cleaning and decontamination |
| C13 alcohol polyether E-1340 | 13~14 | Colorless to slightly yellow transparent liquid or paste | Excellent | About 14~15 | Long-term emulsification, efficient dispersion and stabilization |
1. Excellent emulsion stability: The longer EO segments provide a strong steric hindrance effect, resulting in finer emulsion particle size and better stability, especially suitable as the main emulsifier in emulsion polymerization and as a highly efficient emulsifier for pesticide emulsifiable concentrates.
2. Outstanding dispersion persistence: In water-based coatings, inks, and paper deinking applications, E-1340 can effectively prevent reaggregation and sedimentation of pigment particles and ink particles, maintaining long-term uniformity of the dispersion system, which is difficult to achieve with low-EO-number products.
3. Wide tolerance to acids, alkalis, and hard water: Its non-ionic structure allows it to maintain stable performance in acidic, alkaline, and hard water conditions, without being affected by calcium and magnesium ions like anionic surfactants.
4. Low foaming and easy rinsing characteristics: In industrial cleaning and textile scouring processes, E-1340 exhibits controllable low foaming properties, which facilitates water-saving rinsing and improves process efficiency.
5. Environmental compliance: It does not contain alkylphenol structures (APEO-free), has a biodegradation rate exceeding 60% (28 days), meets EU REACH regulations and increasingly stringent domestic environmental requirements, and can serve as an ideal replacement for the phased-out NP/TX series surfactants.
If the core requirements of your formulation are high emulsifying power, long-term dispersion stability, and broad compatibility (e.g., water-based coating dispersion