cloveoilsteamdistillation-091013090737-phpapp02

cloveoilsteamdistillation-091013090737-phpapp02 - Isolating...

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Isolating Clove Oil from Cloves Using Steam Distillation
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Definition Simple & Fractional Distillation: distillation of two miscible liquids. Raoult’s Law: P T = x = x 1 P 1 ° + x + x 2 P 2 ° Codistillation: distillation of two immiscible liquids. Dalton’s Law: P T T = P = P 1 º + P + P 2 º Compounds 1 and 2 start to codistill when P T is equal to atmospheric pressure (760 torr). Steam Distillation: distillation of water + another liquid. Pure Water: P w º = 760 torr at 100 ºC Advantage : steam distillation allows the mixture of organic liquids to distill below 100 ºC: good for unstable or high boiling point compounds .
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Essential Oils A volatile oil, usually having the characteristic odor or flavor of the plant, frequently is a water-immiscible liquid separated by distillation from the plant material. Such oils are used to make perfumes, flavorings, cosmetics, incenses, and medicine. For example For example : Clove oil consists of several compounds such as eugenol , which is the major component (85-90%) and eugenol acetate (9-10%).
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cloveoilsteamdistillation-091013090737-phpapp02 - Isolating...

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