Dodecanol (Laurel alcohol 12 alcohol L-23, CAS No.: 68439-50-9) is a high-purity C12-14 fatty alcohol provided by Guoli Chemical, with active content ≥99% and melting point of 23~25°C. At lower room temperatures, the product appears as a white waxy solid; at slightly higher temperatures (>25°C), it is a colorless liquid. If the product solidifies before use, the packaging drum can be slowly melted in a 25~35°C warm water bath or constant temperature environment; direct open flame heating is strictly prohibited. After melting, shake gently to mix evenly before normal use.
The usage of this product can be divided into two main routes: As a chemical synthesis intermediate—preparation of downstream surfactants (such as AEO series, SLS/SLES, etc.) through ethoxylation, sulfation, esterification, etc.; this route requires a professional reactor under specific process conditions; As a direct formulation additive—used as a co-emulsifier and thickener in personal care creams and lotions, as a solvent or foam regulator in industrial cleaning formulations, or as a softener and smoothing component in textile auxiliaries; add directly and stir evenly. Regardless of the application, small-scale experiments are recommended before addition to confirm compatibility and optimal dosage.
The HLB value of this product is approximately 1.3, indicating strong hydrophobicity. It is insoluble in water but readily soluble in ethanol, ether, and oil-phase systems. Therefore, in water-based formulations, it needs to be emulsified and dispersed with the help of other surfactants, or pre-dissolved in the oil phase/alcohol phase before being added to the system.
| Parameter Name | Guoli Chemical Product Specifications |
|---|---|
| Appearance (25°C) | Colorless liquid or white waxy solid |
| Active Content | ≥99% |
| Melting Point | 23~25°C |
| Flash Point (Closed Cup) | >110°C |
| Hydroxyl Value | Approximately 290-305 mgKOH/g |
| HLB Value | Approximately 1.3 |
| Acid Value | ≤0.5 mgKOH/g |
| Iodine Value | ≤1 |
| pH (1% Aqueous Solution) | 6.0-8.0 |
| Moisture Content | ≤0.5% |
| Density (25°C) | 0.82-0.84 g/cm³ |
| Solubility | Readily soluble in organic solvents such as ethanol and ether; insoluble in water |
Personal Care Products (Creams/Lotions/Shampoos): As a co-emulsifier and thickening component, the recommended addition amount is 0.5%~3% of the total formulation. It is typically used in combination with primary emulsifiers (such as AEO series, glyceryl stearate, etc.) and should be pre-heated to a molten state (approximately 40~50°C) before adding to the oil phase, then homogenized and emulsified. In shampoos, it can also serve as a superfatting agent and pearlescent stabilizer, with an addition amount generally not exceeding 2%.
Industrial Cleaning and Detergent Formulations: As an auxiliary degreasing solvent or foam control component, the recommended addition amount is 1%~5%. In concentrated liquid cleaning formulations, adding an appropriate amount of dodecanol can effectively adjust foam height and improve rinsing performance. For precision metal cleaning, it can be used as one of the compounding solvents, with a recommended dosage of 5%~15%.
Textile Auxiliaries and Leather Treatment: As a basic raw material for smoothing agents and softeners, the recommended effective content in the final auxiliary product is 10%~30% (based on the final compounded product). It needs to be used in combination with nonionic emulsifiers to prepare a stable aqueous emulsion before application. The actual dosage should be determined through process trials based on fiber type and desired hand feel.
Surfactant Synthesis (AEO/SLS/SLES, etc.): As a core reaction raw material, the dosage is calculated based on the stoichiometric ratio of the reaction; there is no fixed "addition amount" concept. For example, in the synthesis of laureth surfactants (AEO-3/7/9), the molar ratio of dodecanol to ethylene oxide determines the EO addition number of the final product, and the reaction conditions must be strictly controlled in professional chemical synthesis equipment.
Flavors and Fragrances and Organic Synthesis Intermediates: The dosage depends on the target reaction pathway, usually participating in reactions such as esterification and oxidation in molar equivalents, and must be calculated according to the specific synthesis process route.
Note: The above addition amounts are industry general experience ranges. The Guoli Chemical product database does not have official recommended addition amounts for each application scenario. It is recommended that customers determine the optimal dosage through formulation experiments.