Overview
Dodecanol, commonly referred to as lauryl alcohol, is a twelve-carbon fatty alcohol derived from natural fats and oils or synthesized via petrochemical processes. It is a versatile chemical with applications spanning industries such as cosmetics, pharmaceuticals, and industrial manufacturing. Its amphiphilic nature makes it valuable as a surfactant and emulsifier. Dodecanol is produced through the hydrogenation of lauric acid or its esters, often sourced from coconut or palm kernel oil. As a biodegradable and renewable resource, it is increasingly favored in sustainable formulations.
Physical and Chemical Properties
Dodecanol appears as a colorless solid at room temperature but melts into a clear liquid above 24°C. It has a faint floral odor and is insoluble in water but miscible with alcohols, ethers, and other organic solvents. Its density ranges between 0.830–0.836 g/cm³, and it exhibits low volatility with a high boiling point of 259–262°C. The alcohol group in dodecanol enables reactions such as esterification and ethoxylation, making it a key intermediate for derivatives like sodium lauryl sulfate (SLS) and polyethylene glycol ethers. Its stability under normal conditions ensures long shelf life when stored properly.
Main Applications
Dodecanol is primarily used in the production of surfactants, including SLS and laureth sulfates, which are critical in detergents, shampoos, and toothpaste. Its lubricating properties also make it suitable for industrial lubricants and metalworking fluids. In personal care, it serves as an emollient and viscosity modifier in creams and lotions. Pharmaceutical applications include use as an excipient in ointments and drug delivery systems. Additionally, it acts as a precursor for plasticizers and agrochemicals.
Safety and Storage
While dodecanol is generally low in toxicity, it can cause mild skin and eye irritation upon direct contact. Proper handling requires gloves, goggles, and adequate ventilation. Ingestion or inhalation of vapors should be avoided. Storage recommendations include keeping containers tightly sealed in a cool, dry place away from heat and open flames. Compatibility with storage materials should be verified—stainless steel or polyethylene containers are preferred. Spills should be contained with inert absorbents.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO or GMP certifications to ensure product consistency and purity (typically 98–99.5%). Key specifications to check include CAS number (112-53-8), melting point, and residual solvent content. Bulk purchases (drums or tankers) often reduce costs, but sample testing is advised for new suppliers. Regional pricing varies; Southeast Asian suppliers may offer competitive rates due to local palm oil sourcing. Contracts should include clauses for batch analysis and delivery timelines.
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