05 - Steam Distillation

05 - Steam Distillation - Isolating Clove Oil from Cloves...

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Isolating Clove Oil from Cloves Using Steam Distillation
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Definition Steam Distillation is a special type of distillation for temperature sensitive materials like natural aromatic compounds. -This distillation can be performed on two immiscible liquids so called codistillation. - When two immiscible liquids are distilled, the total vapor pressure P T above the liquid is equal to the sum of the vapor pressure of each compound. This relationship is known as Dalton’s Law . - P T is not dependent on mole fraction of each component which would be included if the liquids were miscible, because the vaporization of each liquid is independent of the other. - Advantage : steam distillation allows distillation of organic compounds with high boiling points to distill below 100 ºC avoiding decomposition .
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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
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05 - Steam Distillation - Isolating Clove Oil from Cloves...

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