Page 3 of 50 - About 500 essays
  • The Synthesis Of Aspirin ( Acetylsalicylic Acid )

    2045 Words  | 9 Pages

    Abstract This report presents the synthesis of Aspirin (acetylsalicylic acid), as the product of the reaction of salicylic acid with ethanoic anhydride under acidic conditions. Aspirin was purified through recrystallisation by vacuum filtration, followed by desiccation of the Aspirin crystal over silica gel. The percentage yield was calculated as 44.89% and a sample of Aspirin was analysed using infra-red spectroscopy and compared to the spectrum of pure Aspirin, this served as an introduction to the identification

  • Analysis of Asa in Aspirin Tablets

    1670 Words  | 7 Pages

    EXPERIMENT 2- ANALYSIS OF ASPIRIN MATTHEW SKILTON DUE MONDAY FEBRUARY 13TH 2012 TA- ANA GARGAUN ABSTRACT In this experiment the concentration of acetyl salicylic acid (ASA) in an aspirin tablet will be determined. This can be done by dissolving a tablet in a strong base, NaOH, and titration it with a strong acid, HCl. The quantity was found to be about 75.5% of the weight of the tablet, or about 318 mg per tablet. This value tells the pharmaceutical companies how much to state the recommended

  • Historical Developments Relevant For Aspirin Essay

    1313 Words  | 6 Pages

    Historical Developments Relevant to Aspirin: A historical Development that relates to Aspirin is the father of our modern Medicine Hippocrates, who was a Greek Physician, left records of how they treated headaches, fevers and pains, and to ease child- bearing pains with a powder made of the leaves and bark form a Willow Tree. Also the Ancient Egyptians left a medical text called “Ebers Papyrus” which is also lists willow among a list a plant and animal remedies for pain relief, fever reduction, and

  • Using An Esterification Reaction And Conduct A Purity Test On The Aspirin Crystals And A Commercial Aspirin Product

    860 Words  | 4 Pages

    Objective: Students will be able to synthesize aspirin using an esterification reaction and conduct a purity test on the aspirin crystals and a commercial aspirin product. Procedure: Preparation of Aspirin- Begin by weighing a 125-mL Erlenmeyer flask and recording the result. Next, add approximately 2 g of salicylic acid to the Erlenmeyer flask. Then, record the new mass of the Erlenmeyer and the salicylic acid. Next, inside of the hood add 5 mL of acetic anhydride and 10 drops of 85% phosphoric

  • The Production and Manufacture of Aspirin Essay example

    741 Words  | 3 Pages

    The production and manufacture of Aspirin Aspirin is one of the most consumed painkillers created up to this date due to its reliability and low expense. It is often used to relieve minor aches and pains, reduce fever and as an anti-inflammatory medication. Due to its wide range of uses, the demand for this pharmaceutical is very high. As a result, manufacturers who produce this drug must be efficient in order to reduce the time taken to produce this drug and produce the in very high quantities

  • Preparation of Aspirin and Determination of the Melting Point

    1445 Words  | 6 Pages

    PREPARATION OF ASPIRIN AND DETERMINATION OF THE MELTING POINT Ferrer, Lara Melissa V. Faculty of Engineering University of Santo Tomas Manila, Philippines ABSTRACT This experiment involved three steps: synthesis of aspirin, isolation and purification, and the estimation of purity of the final product. The synthesis involved the reaction of salicylic acid and acetic anhydride in the presence of a catalyst, phosphoric acid, H3PO4. When the aspirin was prepared, it was isolated and filtered. The percentage

  • Organic Chemical Synthesis : The Process Of Aspirin

    1768 Words  | 8 Pages

    Aspirin Synthesis Organic chemical synthesis is the process of creating a different substance from two or more existing substances. It can be done naturally or through man made techniques. Synthesis has been going on for ages, although there was a time that we did not actually know that was what we were doing. The first conscious synthesis was when urea was made in 1828. Since then, this science has continued to become more developed and since World War II it has been growing exponentially. A complete

  • The History Of Aspirin And The White Willow Tree Connection By The English

    842 Words  | 4 Pages

    The history of aspirin is long beginning in 1763 with Edward Stone and is quite extensive including such names as salicylaldehyde in 1838 and salicylic acid and the white willow tree connection by the English. Kolbe in about 1850 and 1870 were involved. More recently, the Bayer and Hoffman companies were participants in some of the most leading contributors to the wide use and distributive properties of aspirin. The history of aspirin reaches as far back as 330 B.C and its functions in relieving

  • Synthesis and Characterization of Aspirin Product Identity and Purity After synthesizing a

    1000 Words  | 4 Pages

    Synthesis and Characterization of Aspirin Product Identity and Purity After synthesizing a chemical, especially a drug, it is important to confirm the identity and purity of the product. You will perform three tests to examine the identity and purity of the aspirin that you synthesized. One test will detect the presence of leftover salicylic acid in the synthesized aspirin and allow you to determine its concentration. Government regulations stipulate that commercial aspirin must not contain residual

  • Analysis of Aspirin

    1901 Words  | 8 Pages

    1. Aim To determine the percentage of aspirin in different commercial preparations and to find which is the best value for money 2. Hypothesis The greater the percentage of acetylsalicylic acid (ASA) in the tablet, more powerful and efficient the aspirin would be due to the way aspirin works in human’s body. Aspirin is often used to alleviate the pain, and the sensation of pain is mainly attributed to a chemical substance called prostaglandins, which is responsible to send a strong signal