Microscale Synthesis of Acetylsalicylic Acid [pic] Introduction: Acetylsalicylic acid is a wonder drug par excellence. It is widely used as an analgesic (pain reliever) and fever depressant. It also reduces inflammation and may even prevent heart attacks. It has a few side effects for some people‚ yet it is safe enough to be sold without a prescription. Because it is easy to prepare‚ aspirin is one of the most inexpensive drugs available. It is produced in vast amounts. In fact‚ industry
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solution with a known concentration of 4.047x10-3 M was obtained. A 250-mL sample of a 10-fold dilution of this ionic iron solution and 5 drops of concentrated HNO3 was made. This solution served as the source of ionic Iron for the remainder of the lab and was labeled “stock ionic Iron solution.” Next‚ a 50-mL aqueous ionic Iron and FerroZine® complex solution was prepared by adding 5.00mL stock ionic Iron‚ 3-mL of acetic acid buffer‚ 2-mL of 5% hydroxylamine hydrochloride‚ allowing five minutes for
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The experiment consists of 5 steps—Inoculation‚ fermentation‚ cell lysis‚ inclusion body solubilization‚ and peptide purification. In the first two steps‚ E coli with Snake 6 peptides is cultivated. Ultraviolet–visible spectroscopy (UV-vis) is used to quantify bacteria through detection of their optical density (O.D.). After reaching a certain concentration in the fermentation batch‚ inclusion bodies (IBs) are extracted from these E coli by adding Bugbuster lysis solution and lysozyme. Polyacrylamide
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Synthesis of Isopentyl Acetate (Banana Oil) Using A Fischer Esterification Reaction Purpose: The purpose of this experiment is to synthesize Isopentyl Acetate using a Fischer esterification reaction. Fischer esterification is an acid-catalyzed condensation of an alcohol and a carboxylic acid‚ yielding an ester and water. Isopentyl Acetate has the scent of banana oil‚ once synthesized it will be purified by distillation. Then the analysis of the sample using H NMR and IR will determine purity
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buffer at pH 7.0‚ the CA-2Pb2+ formation resulted in a distinct color change from red to blue‚ accompanied by a remarkable bathochromic shift from 527 nm with a shoulder at 558 nm to 605 nm in the absorption spectrum [28]. Since there have been some reports on the complex formation between Cys and Pb2+ in an aqueous solution [30‚ 31]‚ the sensing selectivity of CA-2Pb2+ toward Cys was investigated by absorption spectroscopy. The color changes and absorption spectral study of CA-2Pb2+ (50 μM) were performed
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INTRODUCTION: Penicillin is the basis for most of the antibiotics in the world just as aspirin is the basis for many drugs. Therefore‚ if there had been only two drugs to invent‚ it would be down to penicillin and aspirin. Hippocrates‚ the father of modern medicine lived sometime between 460 B.C and 377 B.C. Hippocrates has left historical records of pain relief treatments‚ including the use of a powder made from the bark and leaves of the willow tree to help heal headaches‚ pains and fevers.
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Synthesis of Aspirin and Oil of Wintergreen Janelle Alyssa P. Prudente De La Salle University-Dasmariñas Dasmariñas City‚ Cavite‚ Philippines ABSTRACT In this experiment‚ acetylsalicylic acid commonly known as aspirin and methyl salicylate‚ commonly known as oil of wintergreen‚ was synthesized from salicylic acid. This study will show that it is possible to show two very different organic compounds from the same common starting material. For the synthesis of aspirin‚ salicylic acid
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14 may be a possible EEC. Moreover‚ the calculated compensation temperature by inverting the straight line slope‚ T comp = 57.9 ºC‚ is higher than the average experimental value‚ T exp = 32.5 ºC. This great difference between these two values of temperatures might reflect the existence of real EEC rather than experimental error [58]. Another evidence of EEC is the approximate constant ∆G # with a significant change in both ∆H # and ∆S # . Finally‚ EEC was also investigated by using
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Abstract – The synthesis of 4-hydroxy-4‚4-diphenylbutn-2-one was a three week multi-step project. The steps involved protecting the ketone of ethyl acetoacetate with a ketal group‚ followed by preparation and reaction with Grignard‚ then purification by extraction and recrystallization. The yield was 78.5%‚ but there are impurities present suggested by 1H-NMR‚ IR‚ and TLC. However‚ the results do indicate the desired hydroxyketone was formed. Introduction: The purpose of this multi-step lab was to synthesize
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All the reagents and solvents used for synthesizing the title compound were of Analar grade (Merck) and were used as such without further purification. The 2-naphthol derived Mannich base 1-((4-methylpiperazin-1-yl)(phenyl)methyl)naphthalen-2-ol (MPN) was synthesized according to the general procedure described in the literatures [13‚ 14]. The 2-naphthol (4.33 g‚ 0.03 mol) was dissolved in 30ml of ethanol and it was mixed with N-methylpiperizine (3.0 mL‚ 0.03 mol) by continuous stirrer at room
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