Acid (ASA or Aspirin) Background Salicylic acid is a phenol as well as a carboxylic acid. It can therefore undergo two different types of esterification reactions‚ creating an ester either with the hydroxyl or with the acid. In the presence of acetic anhydride‚ acetylsalicylic acid (aspirin or ASA) is formed. Correspondingly‚ an excess of methanol will form methyl salicylate‚ which is also an analgesic. In this experiment‚ we shall use the former reaction to prepare aspirin. Salicylic
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Conclusion Micromeritic properties refer to science and technology of small particles. The study of particle size and the arrangement of particles are of significant importance as it affects the physical‚ chemical and pharmacologic properties of a drug. Also‚ it is important for not only manufacturing and packaging but also quality control from raw material to final product uniformity. The science of micromeritic involves the study of particle size‚ size distribution‚ flow properties and bulkiness
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Thin Layer Chromatography of the Unknown Analgesic Jessica Bajao*‚ Phoebe Abalos‚ Kevin Antiga‚ Carmelus Aseneta 3-Biology 2 College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The group used five different analgesics in this experiment: aspirin‚ acetaminophen‚ ibuprofen‚ caffeine‚ and mefenamic acid. Six analgesics were spotted on the TLC plate including the unknown. After the development of the TLC plate‚ it was placed under ultraviolet light for the spots resulted
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Exercise 5 Introduction: Many different species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media
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The Photographing Pigeon Lover The Entrepreneur which I have chosen is Eberhard Gramatzki. Eberhard was born on the 27th February 1942‚ and grew up in Kellenhusen (Germany) with his six siblings. After marrying a woman called Janet from the Netherlands (1967)‚ they moved to Vermont to continue their life there‚ while having three children. He became interested in becoming an entrepreneur when he was a working engineer for over 24 years at IBM (International Business Machines)‚ a leading US
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Synthesis of Aspirin Abstract The purpose of this experiment is to synthesize a common organic product called acetylsalicylic acid (aspirin)‚ and to become familiar with the optimum conditions needed for successful yields. Aspirin is produced from an acid catalyzed reaction between salicylic acid with acetic anhydride. The crystalline aspirin is synthesized and purified by recrystallization‚ although there is not a hundred percent yield due to sources of error. Introduction Aspirin is a medicine
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experiment was designed to investigate and compare the rates at which different aspirin tablets dissolve in both Water (H2O [representing saliva]) and Hydrochloric Acid (HCl [representing the stomach’s acid]). The amount of Water and Hydrochloric Acid will be kept constant between tablets‚ and tests. Aim To investigate and compare the rates at which different Aspirin Tablets dissolve. The different kinds of Aspirin tablets are: Enteric Coated Tablets Capsules Regular Tablets Dissolving Tablets
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Gbengon‚Sennie Microbiology Lab Case study # 5 November 1‚2012 1. What evidence suggests that the young graduate student has contracted what disease? Ans: The signs and symptoms the young graduate student presented‚ show evidence of Lyme disease. 2. What is the environmental pathway for the vector of this disease? Ans: The environmental pathway for the vector of this disease would be a forested habitat. The black-legged tick or the deer tick is the principle vector of this disease (Lyme
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Books on newton Newtons gift http://elibrary.mel.org/search~S15?/XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D/XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D&SUBKEY=Newton%27s+gift+/1%2C8%2C8%2CB/frameset&FF=XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D&2%2C2%2C the making of a genius. http://elibrary.mel.org/search~S15?/Xthe+making+of+genius&searchscope=15&SORT=DZ/Xthe+making+of+genius&searchscope=15&SORT=DZ&extended=0&SUBKEY=the+making+of+genius/1%2C685%2C685%2CB
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The purpose of the unknown bacteria lab assignment was to select an unknown bacteria culture and‚ through a series of metabolic tests‚ identify which bacteria genus resided in the pure culture received. A nutrient broth inoculated with bacterial culture (numbered 45‚ henceforth referenced as U45) was selected and a streak plate was made to isolate a pure culture for use throughout the assignment. From the streak plate‚ several slides were made to determine the morphology of unknown 45. A Gram stain
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