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1-Octadecene

CAS Number
112-88-9
EC Number
204-012-9
Chemical Formula
C18H36
Molecular Weight
252.5 g/mol

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. Contact us for supply of 1-Octadecene Request Quote

Other Names (Synonyms)

Octadecene | octadec-1-ene

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point17.5 °C
Boiling Point315 °C (approx)
Density0.7983 g/cm³ @ Temp: 20 °C
Flash Point300 °F
AppearanceCLEAR COLOURLESS TO AMBER LIQUID
ColorClear colorless to amber
Odormild hydrocarbon odor
FormLiquid
Water SolubilityMiscible with alcohol, acetone and ether. Immiscible with water.
Vapor Pressure1.3 hPa (20 °C)
Refractive Indexn 20/D 1.444(lit.)
Log P9.470 (est)

Safety & Handling

Danger
GHS08· Health Hazard

Hazard Statements

H304May be fatal if swallowed and enters airways
H413May cause long lasting harmful effects to aquatic life

Precautionary Statements

P273Avoid release to the environment.
P331Do NOT induce vomiting.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P316Get emergency medical help immediately.

Trade & Regulatory

HS Code29012990
WGK (Germany)3