Chemistry:Piperylene
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Short description: Hydrocarbon compound (CH3−CH=CH−CH=CH2)
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| Names | |
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| Preferred IUPAC name
(3E)-Penta-1,3-diene | |
| Identifiers | |
3D model (JSmol)
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PubChem CID
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| UNII | |
| UN number | 1993 3295 1010 |
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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) E-isomer |
| Boiling point | 42 °C (108 °F; 315 K) E-isomer |
| Hazards | |
| GHS pictograms |   
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| GHS Signal word | Danger |
| H225, H304, H315, H319, H335 | |
| P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+310, P302+352, P303+361+353, P304+340, P305+351+338, P312, P321, P331, P332+313, P337+313, P362, P370+378, P403+233, P403+235, P405 | |
| 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). | |
 verify (what is   ?)
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| Infobox references | |
Piperylene or 1,3-pentadiene is an organic compound with the formula CH
3–CH=CH–CH=CH
2. It is a volatile, flammable hydrocarbon. It is one of the five positional isomers of pentadiene.
Reactions and occurrence
Piperylene is a typical diene. It forms a sulfolene upon treatment with sulfur dioxide.[2]
Piperylene is the product of the decarboxylation of sorbic acid, a common anti-mold agent.[3]
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 manufacturing of plastics, adhesives and resins.[4]
See also
References
- ↑ Safety (MSDS) data for piperylene. Retrieved 2007-11-14.
- ↑ Robert L. Frank, Raymond P. Seven (1949). "Isoprene Cyclic Sulfone". Organic Syntheses 29: 59. doi:10.15227/orgsyn.029.0059.
- ↑ Erich Lück, Martin Jager, Nico Raczek (2000). "Sorbic Acid". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a24_507. ISBN 3527306730.
- ↑ Piperylene at Shell Chemicals. Retrieved 2009-05-19.
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