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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Preface Preface Acronyms‚ Abbreviations and Symbols About the Author 1 Introduction Electromagnetic Radiation Infrared Absorptions Normal Modes of Vibration Complicating Factors 1.4.1 Overtone and Combination Bands 1.4.2 Fermi Resonance 1.4.3 Coupling 1.4.4 Vibration–Rotation Bands References 2 Experimental Methods 2.1 Introduction 2.2 Dispersive Infrared Spectrometers 2.3 Fourier-Transform Infrared Spectrometers 2.3.1 Michelson Interferometers 2.3.2 Sources and Detectors 2.3.3 Fourier-Transformation 2
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of Clove and Separation of Eugenol and Acetyl Eugenol . An instructive experiment for beginning chemistry undergraduates chloride‚ and hydroxamic ester tests‚ and the preparation of the henzovl derivative of eupenol. Finally‚ ir spectra of the two components are examined‚ and the information ohtained comoared with that from chemical tests. Practical Detalls Crush about 30-35 g of cloves with pestle and mortar and place in the distillation flask (500 ml) containing about 100 ml water; steam-distil
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Experiment 7- Isolation of the Major Component of Clove Oil Pre-Lab Questions: 1.) Briefly explain the concept of steam distillation. What is the difference between a simple distillation and a steam distillation? When a mixture of two immiscible liquids are distilled it is referred to as codistillation. This process is referred to as steam distillation when one of the liquids is water. This distillation is used to separate organic liquids from natural products and reaction mixtures in which
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Chem 253 - Organic Chemistry I Lab 10: Isolation of Identification of the major constituent of clove oil 3/15/2012 Purpose: The purpose of this lab was to isolate the cove oil from ground cloves and determine the identity of the major constituent that is known to have the molecular formula C10H12O2 through IR spectrometry. Theory: Many people search for alternative ways to treat illnesses other than the conventional use of drugs and surgery. These alternative ways include aromatherapy‚
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Introduction The range of Infrared region is 12800 ~ 10 cm-1. It can be divided into near-infrared region (12800 ~ 4000 cm-1)‚ mid-infrared region (4000 ~ 200 cm-1) and far-infrared region (50 ~ 1000 cm-1). scientists have established various ways to utilize infrared light. Infrared absorption spectroscopy is the method which scientists use to determine the structures of molecules with the molecules’ characteristic absorption of infrared radiation. Infrared spectrum is molecular vibrational spectrum
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Extraction of Eugenol from Cloves 02/01/2014 CHM2210L University of North Florida Abstract Eugenol is found in the essential oil of cloves and has distinct properties that make it an important product to both food and drug industries. (Bhimrao‚ et. al‚ 2004). To utilize many of eugenol’s characteristic properties‚ it is necessary to isolate this organic chemical from the other components of cloves. In this experiment‚ eugenol was isolated from a sample of cloves using a series of techniques
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beaten from the tree and‚ 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
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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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& 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 used as a solvent
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