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Limonene |
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limonene [′lim·nə‚lēn]
(organic chemistry) C10H16A terpene with a lemon odor that is optically active and is found in oils from citrus fruits and in oils from peppermint and spearmint; a colorless, water-insoluble liquid that boils at 176°C. Limonene 1-methy1–4-isopropenylcyclohexene-1, a terpene hydrocarbon; colorless liquid with a lemony odor. Oxidizes readily in air. Boiling point, 176°C; density, 0.8411 g/cm3 at 20°C. Limonene exists in two optically active (+) and (-) forms, as well as a (±)-form (racemic mixture) commonly called dipentene.
Limonene is a component of many essential oils. For example, citrus oils contain mainly (+)-limonene (approximately 90 percent), which may be extracted by rectification processes. Dipentene is also found in turpentine. Limonene is used as an odoriferous substance in perfume and cosmetics manufacture. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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