Overview
Undecene (C11H22) is a linear alpha-olefin belonging to the hydrocarbon family. It is primarily produced through the oligomerization of ethylene or as a byproduct of petroleum refining. As a versatile chemical intermediate, undecene is valued for its reactive double bond, which enables its use in polymerization and functionalization reactions. In industrial settings, undecene is commonly supplied in bulk liquid form, often in drums or tankers. Its mild odor and low solubility in water make it suitable for controlled chemical processes. The compound is a key feedstock for manufacturing surfactants, lubricant additives, and specialty chemicals.
Physical and Chemical Properties
Undecene is a colorless, flammable liquid with a density of 0.74 g/cm³ at room temperature. It has a melting point of -49°C and a boiling point range of 192-194°C, making it stable under typical storage conditions. The compound is insoluble in water but miscible with most organic solvents like ethanol and acetone. Its chemical reactivity stems from the terminal double bond, which participates in reactions such as hydroformylation, epoxidation, and polymerization. Undecene's volatility and flash point (approximately 62°C) necessitate careful handling to prevent fire hazards. Industrial grades typically exceed 95% purity, with minor impurities including isomers and saturated hydrocarbons.
Main Applications
Undecene's primary use is as a building block for surfactants and detergents, where it is converted into undecenyl alcohols or sulfonated derivatives. These products serve as biodegradable alternatives in cleaning formulations. The compound also acts as a precursor for synthetic lubricants, enhancing thermal stability and viscosity in industrial oils. In polymer chemistry, undecene is copolymerized with ethylene to produce linear low-density polyethylene (LLDPE) or functionalized into plasticizers for PVC. Additionally, it finds niche applications in agrochemicals and fragrances, where its hydrocarbon chain length is tailored for specific performance requirements.
Safety and Storage
As a flammable liquid, undecene requires storage in sealed containers away from ignition sources and oxidizing agents. Recommended storage temperatures are below 30°C, with inert gas padding (e.g., nitrogen) to minimize polymerization risks. Ventilation and grounded equipment are essential to prevent static discharge. Personal protective equipment (PPE) such as gloves, goggles, and flame-resistant clothing should be worn during handling. In case of spills, absorb with inert materials like sand and dispose of according to local regulations. Undecene's vapors may cause respiratory irritation, requiring use in fume hoods or with respiratory protection in confined spaces.
B2B Procurement Guide
When sourcing undecene, prioritize suppliers with certifications like ISO 9001 or Responsible Care® to ensure quality and regulatory compliance. Key specifications to verify include purity (≥95%), isomer distribution, and moisture content. Bulk buyers should negotiate contracts with flexibility for volume discounts and just-in-time delivery. Logistics considerations include selecting appropriate packaging (e.g., stainless steel tankers for large quantities) and verifying transport compliance (e.g., UN number 3295 for hazardous materials). Sample testing is recommended to confirm suitability for downstream processes. Long-term partnerships with manufacturers can secure stable pricing and technical support.
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