Synthesis of Aspirin (Acetylsalicylic Acid) Abstract: This experiment is about the synthesis of aspirin under laboratory conditions. Aspirin is prepared by reacting salicylic acid and acetic anhydride; in the presence of sulfuric acid. After fully dissolving the salicylic acid with acetic anhydride‚ the solution is cooled and cold water is then added. Once the crystals form they are then filtered and left to dry out. There mass is measured and recorded then the yield is calculated. Introduction:
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to synthesise acetylsalicylic acid (aspirin) by creating a reaction between acetic anhydride and salicylic acid. This was be accomplished through the use of recrystallization. Acetic anhydride and salicylic acid are mixed together‚ and then acidified by the addition of a few drops of concentrated sulfuric acid‚ which catalyzed the reaction. The percent yield is calculated to determine the effectiveness of the reaction in preparing the desired product (aspirin). The limiting reactant of the equation
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Chewable aspirin can be chewed‚ crushed or swallowed whole but after being consumed the consumer should drink full glass of water. There are many uses for Aspirin. Prescription Aspirin is used to relieve symptoms of rheumatoid arthritis‚ arthritis caused by the swelling of the lining of joints‚ osteoarthritis‚ arthritis caused by breakdown of lining of joints‚ systemic lupus erythematosus‚ the immune system attacks joints and organs‚ and can cause pain/swelling. Nonprescription Aspirin is commonly
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your house’s furniture‚ to buy your favorite book. With the introduction of online book selling portals‚ the only thing you’ll spend is your time and effort on reading and enjoying the book you ordered. These contemporary‚ efficient and convenient stores offer a wider variety and greater convenience that their offline counterparts. The books are categorized into various sections which ease your search. It includes business and autobiography‚ management and music‚ comic and graphic novels‚ fiction
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ABSTRACT Generic visual perception processor is a single chip modeled on the perception capabilities of the human brain‚ which can detect objects in a motion video signal and then locate and track them in real time. Imitating the human eye s neural networks and the brain‚ the chip can handle about 20 billion instructions per second. This electronic eye on the chip can handle a task that ranges from sensing the variable parameters as in the form of video signals and then process it for co-Generic visual
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preparation of aspirin and oil of wintergreen | Introduction Organic compounds are those which contain carbon as well as a select other elements. An organic acid however‚ is an organic compound which contains acidic properties. An ester is an example of being a derivative of these organic acids. Esters can be prepared by the reaction of carboxylic acids and alcohols‚ with an inorganic acid used as a catalyst which is dubbed esterification. With o-hydrobenzoic acid‚ or salicylic
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SINGAPORE POLYTECHNIC SCHOOL OF CHEMICAL AND LIFE SCIENCES Diploma in Applied Chemistry with Pharmaceutical Science Organic Chemistry (CP4120/CP4502) Project Preparation and Recrystallisation of Aspirin. AY2010/2011 Name: XXXX Class: DACP 1B/02 Admin no.: P1234567 Table of Contents Page List of illustration
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unattended. The hot beakers and test tubes must be handled with care and should only be moved using tongs. Also‚ tie back long hair to prevent any accidental fire‚ and be familiar with the location of the fire extinguisher. Discussion The synthesis of aspirin demonstrated here demonstrates several relevant suggestions that should be considered in the synthesis of a substance. Firstly‚ the recrystallization of a product should be performed if possible and relevant. In most reactions‚ the amount of product
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Baptist University Date: 11/23/2014 BUS 505 Retail Stores Retailing refers to the act of selling goods or services for nonbusiness use‚ personal only. They are very popular for selling famous brands for reasonable prices‚ being very specific in what kind of line of products are going to be used for sale or including varieties of things to their stock‚ ranging from clothing to electronics. There are many types of retailing stores (voluntary chain‚ retailer cooperative‚ consumer cooperative
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BESSIE McCARTHY ADVANCED CERTIFICATE IN BUSINESS (LEVEL 6) 2010 BUSINESS MANAGEMENT ASSIGNMENT (one) Based on Assessing and Evaluating the Internal and External environmental forces of ALDI FOOD STORES TABLE OF CONTENTS 1. Introduction 2. Aim 3. Company Description 4. S.W.O.T. Analysis 5. P.E.S.T. Analysis 6. Conclusion 7. Appendices 8. Bibliography 1. INTRODUCTION This assignment will
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