Tomas‚ España‚ Manila 1008 Abstract. In this experiment‚ the primary objective was to isolate eugenol from cloves. An amount of 30 grams of dried cloves and 300 mL of water was distilled over a flame for over 2 hours. The distillate underwent extraction with dichloromethane‚ water and sodium hydroxide. Concentrated hydrochloric acid was added to the aqueous extract to lower it to pH 9; it was again extracted with 2 x 30 mL of DCM. These organic extracts were dried over anhydrous magnesium sulfate
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these techniques involve changes in the physical state of a chemical compound rather than chemical changes. The three objectives in this lab were 1. Learn the different separation techniques which include; sublimation‚ extraction‚ decantation‚ filtration and evaporation. 2. Separate three components in a mixture using the separation techniques learned. 3. Determine the mass percentages of each of the three components present in a mixture. The 5 separation techniques are…… 1) Sublimation:
Free Solubility Chemical substance Mixture
sodium bicarbonate and water‚ then dried with anhydrous sodium sulfate. It was then distilled using a standard simple distillation apparatus. The percent yield of isopentyl acetate was 60.39%. This may have been low due to incomplete distillation or evaporation once entering the receiving flask. The product had a distinct “banana oil” smell‚ making the reaction successful. Introduction The purpose of this experiment is to synthesize isopentyl acetate (3-methylbutly acetate) via Fischer Esterification
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In partial fulfillment of the requirements for High IV Science Research Comparison and Evaluation of Volatile Oils From Two Different Extraction Methods for Sampaguita Flower Submitted by: Ang‚ Mark Jesfferson Ang‚ Michael Yu‚ Pamela Yung‚ Clarisse Anne IV-Jehoshaphat Submitted to: Mr. Ronald Allan Vaguchay 2013 Chapter I Introduction Sampaguita flowers are blooming almost everywhere in the Philippines. Nevertheless‚ only a few people are knowledgeable of the full uses
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2005‚ Group: B1 Title: Preparation of 1-bromobutane from 1-butanol by SN2 reaction Objective: 1. To study the preparation of 1-bromobutane from 1-butanol by an SN2 reaction 2. To study the method of purification of an organic compound by simple extraction 3. To study the test of identification of alkyl halide Chemicals and Apparatus: ~18.0 g 1-butanol‚ ~20.0 g sodium bromide‚ 15 ml of concentrated sulfuric acid‚ anhydrous magnesium sulfate‚ ~10 ml of 5% aqueous sodium bicarbonate‚ ~1 ml of sodium
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Chem 3100 Thursday 9am-1:45pm Olumba Obu Unknown #: 146 Fall-11 Organic Chemistry Midterm Report 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine
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water will then be heated to boiling and the distillate (a eugenol/water mixture) will be collected. The eugenol will then be separated from the water by extraction with pentane. The pentane solutions will then be dried over magnesium sulfate‚ remove the magnesium sulfate by vacuum filtration and remove the pentane from the filtrate by evaporation on a water bath in the hood. The percent recovery from cloves will be determined and the product will be analyzed by transmission infrared spectroscopy (IR)
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prepared with the process of Esterification. By using the reflux technique‚ extraction‚ washing and drying the Isoamyl acetate or banana flavor was isolated from the acetic acid. This was then weighed and computed for the percent yield. The theoretical yield and the weighed value must have close values in order for this experiment to be successful. Keywords: fruit flavors‚ banana flavor‚ acyl esterification‚ reflux‚ extraction‚ washing‚ drying‚ drying agents Introduction Esters are a group of organic
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filtration. Potassium hydroxide pellets were added to the filtrate‚ the ether was distilled off‚ and the mixture was saponified by reflux. The crude cholesterol was isolated through a series of ether extractions and aqueous washes; then the ether was dried with MgSO4 and removed by rotary evaporation. The melting point of the yellow‚ sticky crude product was 91-119 oC. This crude product was then recrystallized from methanol‚ yielding 0.128g of pale yellow crystals with a melting point of 131-135
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SUGAR MILL 2011 REA MALCO RODRIGUEZ BSME V 6/21/2011 Contents Sugar Mill 1 Raw Sugar Manufacturing Process 1 Extraction 1 Cane Handling 1 Auxiliary Parts of the Cane Handling Station 2 MILL STATION (EXTRACTION) 4 Auxiliary parts of the Mill Station 4 Clarification and Purification of Juice 7 Equipment Used 7 EVAPORATION 8 Equipment Used 9 Crystallization or Pan Boiling 9 OPERATION 10 EQUIPMENT USED 12 Centrifugation / Purging 13 EQUIPMENT USED 13 REFINERY
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