Trans-pent-2-ene (C₅H₁₀)

Trans-pent-2-ene (C₅H₁₀)

One of the isomers of pentenes.

Chemistry

Keywords

Trans-pent-2-ene, geometric isomerism, alkene, olefin, hydrocarbon, unsaturated, constitutional isomerism, homologous series, pentene, isomer, addition, polymerisation, petrol, octane number, organic chemistry, chemistry

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Scenes

Trans-pent-2-ene C₅H₁₀

Information

Molar mass: 70.134 g/mol

Melting point: -105.5 °C (-157.9 °F)

Boiling point: 36 °C (96.8 °F)

Density: 0.6490 g/cm³ (0.0234 lb/in³)

Properties

Trans-pent-2-ene and cis-pent-2-ene are identical in constitution but different in configuration. This is the reason they are considered geometrical isomers of each other. ’Cis’ means both side groups are on the same side of the double bond, close to each other, as opposed to ’trans’, which means the atom groups are on opposite sides of the double bond.

Trans-pent-2-ene is a combustible chemical compound with a low boiling point and an unpleasant odor. It is a polymerization inhibitor. It participates in typical alkene reactions. Pentane is formed from its hydrogenation.

Occurrence and production

It can be found in natural gas and crack gases. It is produced from the dehydrogenation of pentane.

Uses

Trans-pent-2-ene is used for the production of certain organic compounds and to increase the octane number of petrol.

Related items

Cis-2-butene (C₄H₈)

A colorless, heavier-than-air gas. Its geometric isomer is trans-2-butene.

Trans-2-butene (C₄H₈)

A colorless, heavier-than-air gas. Its geometric isomer is cis-2-butene.

Pent-1-ene (C₅H₁₀)

A liquid with a characteristic unpleasant odor and a low boiling point.

Pentane (C₅H₁₂)

The fifth member in the alkane homologous series. A colorless, combustible liquid.

Cyclopentane (C₅H₁₀)

Member of the cycloalkane homologous series.

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