Piperylene
Piperylene or 1,3-pentadiene is a volatile, flammable hydrocarbon consisting of a five carbon chain with two double bonds separated by one single bond. It is one of the five positional isomers of pentadiene.
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| Names | |
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| IUPAC name
1,3-Pentadiene | |
| Other names
Penta-1,3-diene | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.016.282  |
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CompTox Dashboard (EPA) |
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| Properties | |
| C5H8 | |
| Molar mass | 68.117 g/mol |
| Appearance | Colorless liquid |
| Density | 0.683 g/cm3 |
| Melting point | −87 °C (−125 °F; 186 K) |
| Boiling point | 42 °C (108 °F; 315 K) |
| Hazards | |
| R-phrases (outdated) | R11 R36 R37 R38 |
| S-phrases (outdated) | S16 S26 S36 S37 S39 |
| Flash point | < −30 °C (−22 °F; 243 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
Piperylene is obtained as a byproduct of ethylene production from crude oil, combustion of biomass, waste incineration and exhaust gases. It is used as a monomer in the manufacture of plastics, adhesives and resins.[2] At standard conditions, piperylene is a colorless liquid.[3] Upon release into the aquatic environment it is expected to adsorb to suspended particulate matter (SPM) based on its estimated KOC value.
The alternating double and single carbon-carbon bonds form a conjugated system.
See also
References
- Safety (MSDS) data for piperylene. Retrieved 2007-11-14.
- Piperylene Archived 2009-05-13 at the Wayback Machine at Shell Chemicals. Retrieved 2009-05-19.
- http://msds.chem.ox.ac.uk/PI/piperylene.html
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