Overview
1-Hexadecene (CAS 629-73-2 ), also known commercially as cetylene, is a long-chain linear alpha olefin used as a reactive building block and functional ingredient across polymer, lubricant, and personal care manufacturing.
Its terminal double bond makes it a preferred monomer and co-monomer for controlled chemical reactions in industrial synthesis. In plastics and polymer production, it serves as a co-monomer in polyethylene and polyalphaolefin synthesis.
This chemical influences chain branching and final resin properties to meet specific performance targets. Lubricant formulators use it as a feedstock for synthetic base oils and viscosity modifiers for automotive and industrial fluids.
Controlled oligomerization delivers tailored lubrication profiles for high-performance applications. In personal care, it functions as an emollient carrier and dispersing agent in skin-feel formulations, contributing to spreadability and texture.
It is frequently utilized in creams and serums to enhance the user experience. It also acts as a plasticizer and softening agent in specialty coatings and adhesive systems requiring flexible film formation during the curing process.
The product is supplied as a clear liquid in drum and IBC quantities, with bulk tanker options available for high-volume industrial buyers. Standard commercial grades are available at purities of 95% and 98%+.
High-purity polymer-grade specifications are offered for co-monomer applications. Our logistics network ensures reliable delivery of this essential olefin to manufacturing facilities worldwide while maintaining strict quality control protocols.
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Physical Properties
| Melting Point | 4.1 °C |
| Boiling Point | 284.4 °C @ Press: 760 Torr |
| Density | 0.7811 g/cm³ @ Temp: 20 °C |
| Flash Point | 275 °F |
| Appearance | clear colorless liquid |
| Color | Yellow to orange-brown |
| Odor | mild hydrocarbon odor |
| Form | Crystalline Powder, Crystals and/or Chunks |
| Water Solubility | Miscible with ether, petroleum ether and alcohol. Immiscible with water. |
| Vapor Pressure | 1 mm Hg ( 105.3 °C) |
| Refractive Index | n 20/D 1.441(lit.) |
| Log P | 8.06 at 20℃ |
Safety & Handling
Danger GHS08 GHS09 Hazard Statements H304 May be fatal if swallowed and enters airways H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P273 Avoid release to the environment. P331 Do NOT induce vomiting. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P301+P316 Get emergency medical help immediately.
Trade & Regulatory
| HS Code | 29012990 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 629-73-2
- EC Number
- 211-105-8
- Mol. Weight
- 224.42
- HS Code
- 29012990
- Category
- Oils, Fats & Waxes