roots of plants. In this experiment‚ the essential oil eugenol was isolated from ground cloves using steam distillation techniques. Eugenol had a high boiling point‚ but it was isolated at a lower temperature by performing a co-distillation with water‚ a process known as steam distillation. This technique allowed the desired material to be distilled at a lower temperature than 100℃. The point of the steam distillation was to use an azeotrope to isolate the organic compound from a solid. The azeotrope
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Eugenol from Cloves by Steam Distillation and its Identification by Infrared Spectroscopy Eim A. Chemist CHEM 303 June 16‚ 2005 INTRODUCTION “Essential oils” are the volatile components associated with the aromas of many plants.1 In this experiment‚ the essential oil eugenol (the main component of oil of cloves) will be isolated from ground cloves using the technique of steam distillation‚ which is often used to isolate liquid natural products from plants.2 The principle of steam distillation
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One major observation made throughout this experiment was during the steam distillation. As the steam distillation started and the solution in the flask began heating‚ it was clear that too much stopcock grease was used around the glassware. The grease from the connecting ends of the three way connecting tube was melting and seeping into the clove and water solution in the two necked round bottom flask. The solution in the flask was immediately discarded and repeated with clean glassware and a very
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Steam Distillation of Lemongrass Oil I. Introduction When a mixture of cyclohexane and toluene is distilled‚ the boiling point of these two miscible liquids is between the boiling points of each of the pure components. By contrast‚ if a mixture of benzene and water (Immiscible liquids) is distilled‚ the boiling point of the mixture will be found below the boiling point of each pure component. Since the two liquids are essentially insoluble in each other‚ the benzene molecules in a droplet of
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when dried‚ provide the cloves of commerce. The flowers have a strong refreshing odour if the seed are allowed to mature‚ most of the pungency is lost. Each berry has only one seed. The trees fruit usually about eight or nine years after planting. The whole tree is highly aromatic. The finest cloves come from Mallacca and Pemba and also East & West Indies‚ Mauritius and Brazil. Ethenomedicinal Practice It is used as a domestic spice world-wide. Tincture of cloves has been used for skin infections
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Domaradzki Labs 3 & 4 09/19/11 Objective: In steam distillation lab (lab 3)‚ we must obtain pure Eugenol from cloves through the process of steam distillation. In the crystallization lab (lab 4) part 1‚ we must acquire the best possible pure crystallization of acetylsalicylic acid from aspirin and in part 2 we must obtain a similar pure crystallization of benzil from an impure mixture of benzil. Materials: In lab 3‚ we used 75 g of cloves from which we must extract Eugenol. Water was largely
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Abstract In the following project we are discussing about distillation. The operation of the distillation is employed for the purification of liquids from non-volatile impurities. The liquid is heated to the vapor phase and then is collected and recondensed to give back the pure liquid .The non-volatile impurities are left behind in the flask. Here our main focus will be at the fractional distillation. It is the process in which we separate the different components of a mixture on the basis of the
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to perform a steam distillation using a microscale distillation apparatus and isolate a natural product from cloves. Introduction By performing steam distillation we can isolate eugenol at lower temperature than its usual boiling point of 248 degree Celsius. Eugenol belongs to a category called essential oil. Many of these compounds are used as flavoring and perfumes and in the past were considered the essence of plant from which they were derived. Structure of eugenol (clove oil) and eugenol
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1 ABSTRACT Distillation is a process by which one liquid can be separated from another liquid‚ or a liquid from a nonvolatile solid. In this experiment‚ the distillations of cyclohexane and toluene mixture were carried out. The purpose of this experiment is to compare the efficiency of simple distillation versus fractional distillation for separation of a mixture of toluene and cyclohexane. The mixture was first separated using simple distillation. A simple distillation apparatus was set
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(2013)15-68 brill.aim/himii The Origins of Fossil Capital: From Water to Steam in the British Cotton Industry* Andreas Malm Human Ecology Division/LUCID‚ Lund University Andreas.Malm@lucid.lu.se Abstract The process commonly referred to as business-as-usual has given rise to dangerous climate change‚ but its social history remains strangely unexplored. A key moment in its onset was the transition to steam power as a source of rotary motion in commodity production‚ in Britain and‚ first
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