Dodecyl Alcohol (Lauryl Alcohol / L-23), produced by Guoli Chemical, is mainly composed of C₁₂H₂₆O and a small amount of C₁₄H₃₀O, with an average molecular weight of about 194. The product appears as a colorless liquid or white solid at room temperature, exhibiting the typical chemical properties of long-chain primary fatty alcohols. It has high reactivity and can undergo various derivatization reactions such as ethoxylation, sulfation, and esterification smoothly. Its HLB value is about 1.3, making it a strongly hydrophobic nonionic surfactant intermediate.
This product has high purity and narrow carbon chain distribution, ensuring batch consistency and formulation reliability in downstream applications. It is readily soluble in organic solvents such as ethanol and ether, has low solubility in water, and its surface tension (25°C) is approximately 29.8 mN/m. The melting point is 23~25°C. It may be solid at slightly lower temperatures and liquid at slightly higher temperatures, which is a normal physical characteristic of fatty alcohols with this chain length.
| Chemical Identification Information | |
|---|---|
| Product Name | C12-14 Fatty Alcohol (Dodecyl Alcohol / Lauryl Alcohol L-23) |
| CAS No. | 68439-50-9 |
| Molecular Formula | C₁₂H₂₆O (main) and C₁₄H₃₀O |
| Molecular Weight | Approx. 186-214 (average ~194) |
| Ionic Type | Nonionic |
| Physical Properties | |
| Appearance | Colorless liquid or white solid |
| Melting Point | 23~25°C |
| Density | 0.82~0.84 g/cm³ |
| Kinematic Viscosity (25°C) | 12-15 mm²/s |
| Low Shear Viscosity (25°C) | Approx. 10 mPa·s |
| Refractive Index (20°C) | 1.442-1.447 |
| Flash Point (Closed Cup) | ＞110°C |
| Surface Tension (25°C) | Approx. 29.8 mN/m |
| HLB Value | Approx. 1.3 |
| Cloud Point | None |
| Hygroscopicity | Low |
| Solubility | Readily soluble in organic solvents such as ethanol and ether |
| Chemical Indicators | |
| Active Matter Content | ≥99% |
| Solid Content | 100% (pure product) |
| Free Alcohol Content | ≥99% |
| Hydroxyl Value | Approx. 290-305 mgKOH/g |
| Acid Value | ≤0.5 mgKOH/g |
| Saponification Value | ≤0.5 mgKOH/g |
| Iodine Value | ≤1 gI₂/100g |
| Moisture | ≤0.5% |
| pH (1% Aqueous Solution) | 6.0-8.0 |
| pH (5% Aqueous Solution) | 6.0-8.0 |
| Unsaturation | Very low (Iodine value ≤1) |
| Chemical Stability | Stable at room temperature, avoid contact with strong oxidizing agents |
| Alkali Resistance | Stable |
| Safety and Environmental Indicators | |
| Heavy Metals (as Pb) | ≤10 mg/kg |
| Arsenic (As) | ≤2 mg/kg |
| GHS Classification | Skin Irritation Category 2, Eye Irritation Category 2, Acute Aquatic Toxicity Category 1, Chronic Aquatic Toxicity Category 2 |
| Packaging Specifications | |
| Packaging Options | 50kg plastic drum / 200kg plastic drum / IBC tote |
Purity Indicators: Active matter content ≥99%, moisture ≤0.5%, acid value ≤0.5, indicating that Guoli Chemical's L-23 product has extremely high purity and low impurity content. The hydroxyl value of 290-305 mgKOH/g is highly consistent with the theoretical value (theoretical hydroxyl value of dodecyl alcohol is about 301 mgKOH/g), which can serve as a reliable basis for charge calculation in ethoxylation reactions.
Processing Window: Melting point