Isolation and Identification of Eugenol: The Fragrant Component of Cloves *Adri‚ Kiersten Jayne R.‚ Aguinaldo‚ Samuel Jr. Group 2 Department of Chemistry‚ College of Science University of Santo 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
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only ester. Apparatus and materials: Round bottomed flask‚ condenser‚ separating funnel‚ Bunsen Burner‚ thermometer‚ carbon tetrachloride‚ anhydrous sodium sulphate‚ benzoic acid‚ methanol‚ conc. Sulphuric acid‚ anti-bumping granules‚ rotary evaporator. Procedure: 1) 12.2g of benzoic acid was placed in a 250ml round bottomed flask and 40ml of methanol was added. 2) 5ml of concentrated sulphuric acid was added while swirling the contents of the flask at the same time. 3) Three anti-bumping
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Midterm Paper The Artist that I chose to do my paper on is Chuck Jones. The work he has done in the animation industry has inspired me to become the artist I am today. There are many aspects that drew me into this field from character design‚ bringing a character to life‚ the backgrounds‚ and etc. The way he portrayed character personalities and movements is what inspired me the most. To start off Chuck Jones is one of the most praised directors in the history of animation. “During the Golden
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Centre No. Candidate No. Paper Reference(s) Surname Paper Reference Initial(s) 7 0 4 0 7040/01 0 1 Signature Examiner’s use only London Examinations GCE Biology Ordinary Level Paper 1 Monday 10 May 2010 – Morning Time: 1 hour 30 minutes Team Leader’s use only Question Leave Number Blank 1 2 3 4 5 Materials required for examination Nil Items included with question papers Nil 6 7 8 9 Instructions to Candidates In the boxes above‚ write your centre number
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cool and then we had to be weigh it on the electronic pan balance. After weighing beaker 2 we had to shift our focus to the filter paper residue from beaker 1 and we place it onto a dry evaporator dish. Then we had to fill a graduated cylinder with 10 mL of 3.0 M HCL and it had to be poured slowly into the evaporator dish. Once the bubbles had stopped forming we had to decant the liquid into beaker 1 and then we used 5 mL of distilled water to rinse the rest of the sand out of the evaporating dish
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Optimization of biodiesel production from Jatropha Curcas oil by means of experimental planning July 9 – August 20 2010 Abbreviations AOCS : American Oil Chemists’ Society ARS: Agricultural Research Services ASE: Accelerated Solvent Extractor CENARGEN: Centro Nacional de Pesquisas de Recursos Genéticos e Biotecnologia (National Research Center for genetical and biotecnological ressources) EMBRAPA : Empresa Brasileira de Pesquisa Agropecuária (Brazilian Enterprise for Agricultural
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bar and at 7′C if the pressure on the surface of water is 0.01 bar. The reduced pressure on the surface of water is maintained by throttling the steam through the jets or nozzles. Working of steam jet refrigeration system: - The flash chamber or evaporator is a large vessel and is heavily insulated to avoid the rise in temperature of water due to high ambient temp. It is fitted with perforated pipes for spraying water. The warm water coming out of the refrigerated space is sprayed into the flash water
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Heat pump From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search For theoretical background‚ see Heat pump and refrigeration cycle. Outdoor components of a residential air-source heat pump A heat pump is a machine or device that transfers thermal energy from one location‚ called the "source‚" which is at a lower temperature‚ to another location called the "sink" or "heat sink"‚ which is at a higher temperature. Thus‚ heat pumps moves thermal energy opposite to the direction that
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! Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel
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as its use as a natural dental anesthetic. It can be extracted from cloves by using the method of steam distillation. The extracted compound will then be separated from the water using methyl chloride‚ which will then be evaporated using a rotary evaporator leaving only the essential oil‚ Eugenol. IR spectroscopy will be used to determine the structure of the extracted compound. Results and Discussion Four samples of Eugenol were combined to be analyzed for the final product. A lower percent recovery
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