IB1 Chemistry Practical #8 ANALYSIS OF ASPIRIN TABLETS For a long time the bark of the willow tree (salix alba) was used as a traditional medicine to relieve the fever symptoms of malaria. In the 1860’s chemists showed that the active ingredient in willow bark is salicylic acid (2-hydroxybenzoic acid) and by 1870 salicylic acid was in wide use as a pain killer (analgesic) and fever depressant (antipyretic). However‚ because it is a relatively strong acid‚ salicylic acid has the undesirable side effect
Premium Aspirin Sodium hydroxide Salicylic acid
FOUNDATION IN SCIENCE INTRODUCTION TO PRACTICAL ORGANIC CHEMISTRY – MAKING AND PURIFYING ORGANIC COMPOUNDS Stage 1 – Deciding how much reagent to use Most organic reactions do not go to completion; most reach an equilibrium position with significant quantities of reactants still remaining. In addition‚ separating the desired product from the rest of the reaction mixture‚ and then purifying it‚ will result in the loss of more of the product. The amount of product obtained expressed as a percentage
Free Distillation Sulfuric acid Acetic acid
Commercial Aspirin Tablet Analysis Tuesday Evening Intro: The purpose of this lab was to analyze commercial aspirin tablets. To do so‚ the percent acetylsalicyclic acid (active ingredient) in tablets using acid-base titration was determined‚ the percent acetylsalicyclic acid in tablets by formation of a colored iron(III)-salicylate complex was determined using spectrometry‚ and then the percents from each process was compared. Acetylsalicylic acid is produced when salicylic acid and acetic
Premium Aspirin Acetic acid Carboxylic acid
OECD DEVELOPMENT CENTRE Working Paper No. 129 (Formerly Technical Paper No. 129) ECONOMIC REFORM IN EGYPT IN A CHANGING GLOBAL ECONOMY by Joseph Licari Research programme on: Strengthening Links between Developing Countries: Regional Co-operation and Integration December 1997 OCDE/GD(97)226 TABLE OF CONTENTS ACKNOWLEDGEMENTS ........................................................................ 6 RÉSUMÉ .....................................................................................
Premium International trade European Union Free trade
to be 1.43 x 10-3‚ as shown in Equation 3. The purified aspirin product was a white powder that had a weight of .140 g. The number of moles of the purified aspirin product after extraction was 7.77 x 10-4 as shown in Equation 4. These two moles calculated a chemical yield of 54.3% as shown in Equation 5. The melting point of the pure aspirin product was ranged at 117.8-125.2C as shown in Table 1. An infrared spectrum for the pure aspirin from the synthesis was taken by using crushed crystals
Premium Chemical reaction Carboxylic acid Acetic acid
Aspirin were used to relieve pain‚ inflammation‚ and fever. Aspirin were made using a combination of salicylic acid and acetic anhydride.The goal of this experiment was to determined the purity of aspirin using different methods. These methods included‚ reacting salicylic acid with FeCl3‚ finding its melting points‚ and by doing Thin-layer chromatography. When you reacted salicylic acid with FeCl3‚ changes in color will occur. Pure Aspirin has a melting point around 135°C and a pure salicylic acid
Premium Chemistry Acetic acid Water
report discussing the purity of my aspirin sample I produced. When I carried out the experiment to produce an aspirin sample I had to take a few results I had gained from carrying out the experiment later used these to work out the experimental error and percentage % yield. The results I used where the published value of what temperature pure aspirin melts at‚ the temperature my aspirin sample melted at‚ the weight of pure aspirin and the weight of impure aspirin. Firstly I worked out the experimental
Premium Water Aspirin Measurement
alternative to aspirin. Such a positioning will be able to attract current aspirin customers to Datril. The marketing campaign should focus on physicians‚ trade and patients. It should stress the information of little side effects compared to other analgesic medicine. Both the retail price and the trade price should be lower than Tylenol. Segmentation and targeting: Datril should target on aspirin users. Datril potential clients could be 1) people currently using aspirin 2) people currently
Premium Sanitary napkin Menopause Menstruation
Aspirin has been a pain reliever for more than 100 years. Aspirin has been used as a remedy for many illnesses for centuries now and still more things are yet to be identified about aspirin and its uses. It was recently discovered that aspirin can be used to reduce clotting of the platelets in the blood vessels‚ thus reducing the risk of heart attack in humans. Most students in their youthful age were not able to give their heart the maximum care it deserved‚ as a result‚ it leads to heart related
Premium Obesity Health care Medicine
CH4300/PY5140 - EXPERIMENT 2 – Answer Sheet SYNTHESIS OF THE PHARMACEUTICAL ASPIRIN (ACETYLSALICYLIC ACID) Aim: The aim of this experiment was to react salicylic acid with ethanoic anhydride to produce Aspirin. CH3CO)2O + HOC6H4COOH → CH3CO2C6H4CO2H + CH3COOH i Mass: 5g Volume: 7.5 cm3 Mass: 6.52g RMM: 138g/mol RMM: 180g/mol Moles: 5/138 = 0.0362 RMM: 102g/mol Moles: 0.0362 OBSERVATIONS – First‚ Ethanoic acid was added to the salicylic acid which resulted
Free Aspirin Acetic acid Acetic anhydride