1-Octadecene
Description
1-Octadecene (CAS 112-88-9) is a long-chain linear alpha-olefin used as a chemical building block and functional fluid across specialty chemical manufacturing. Its terminal double bond makes it a reactive intermediate for polymer synthesis and surface modification.
In plastics and polymer manufacturing, it serves as a comonomer in polyethylene and polyalphaolefin production, influencing molecular weight distribution and end-product flexibility. This versatility is essential for modern industrial applications.
Personal care formulators incorporate it into emollient systems and carrier bases where a non-polar, low-viscosity fluid is needed to improve skin feel. It is also utilized in lubricant and metalworking formulations as a base fluid component.
The chemical functions as a synthetic intermediate for high-performance gear oils and cutting fluids. Upstream oil and gas operations use it as a process chemical in drilling fluid formulations requiring thermal stability at elevated temperatures.
1-Octadecene is supplied as a clear liquid, typically in drum and IBC quantities with bulk availability for large-scale industrial buyers. Technical grade is the standard commercial offering for most industrial processes.
Purity levels commonly range from 90% to 97%+ depending on application requirements. Higher-purity cuts are available for specialty polymer and fine chemical synthesis where olefin content and isomer profile are critical to process consistency.
Physical Properties
| Melting Point | 17.5 °C |
| Boiling Point | 315 °C (approx) |
| Density | 0.7983 g/cm³ @ Temp: 20 °C |
| Flash Point | 300 °F |
| Appearance | CLEAR COLOURLESS TO AMBER LIQUID |
| Color | Clear colorless to amber |
| Odor | mild hydrocarbon odor |
| Form | Liquid |
| Water Solubility | Miscible with alcohol, acetone and ether. Immiscible with water. |
| Vapor Pressure | 1.3 hPa (20 °C) |
| Refractive Index | n 20/D 1.444(lit.) |
| Log P | 9.470 (est) |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29012990 |
| WGK (Germany) | 3 |
Documentation
Other Names
Octadecene|octadec-1-ene
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