of HCl via nucleophilic substitution. Cellulose triacetate was generated by mixing cotton balls and acetic anhydride with acidic condition under heating. Materials: Styrene‚ 1 M NaOH solution‚ CaCl2(s)‚ xylene‚ t-butyl peroxybenzoate‚ methanol‚ 5% aqueous solution of 1‚ 6-hexanediamine‚ NaOH(s)‚ 5% sebacoyl chloride in hexane‚ glacial acetic acid‚ concentrated H2SO4‚ cotton balls‚ acetic anhydride‚ CH2Cl2 Procedure: For the synthesis of polystyrene‚ 10 ml styrene and 20 ml of 1 M NaOH solution
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Abstract: • Introduction/Objective: Prepare and analyze aspirin from salicylic acid and acetic anhydride‚ and calculate the percent yield of the synthesized aspirin. • Materials and Methods: This experiment called for the synthesis of acetylsalicylic acid‚ or aspirin‚ by using salicylic acid‚ acetic anhydride‚ sulfuric acid‚ and vacuum filtration. The salicylic acid and the acetic anhydride were mixed in a flask. Sulfuric acid was used as a catalyst to speed up the decomposition rate of
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purity of aspirin by adding Iron (III) chloride to the product. Hypothesis: I hypothesize that salicylic acid will react with acetic anhydride to produce acetylsalicylic acid (aspirin) and acetic acid (vinegar). Variables: Independent and controlled variables: The amount of sulfuric acid used for catalysis and the amount of salicylic acid and acetic anhydride. Dependent variables: Theoretical and actual yield of aspirin. Constant variables: Two beakers filled with 200 mL of water for the
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reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate this acid catalyzed reaction‚ using sulfuric acid as our catalyst in order to produce acetylsalicylic acid and acetic acid. The final product of this reaction will be some crystals‚ which will be mainly composed of
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Aspirin ABSTRACT: The purpose of this experiment was to find out how a reaction undergoes for a globally known painkiller called aspirin‚ and to become familiar with achieving successful yields. Aspirin is synthesized from salicylic acid and acetic anhydride. Those two chemicals are mixed together along with sulfuric acid to form a crude solid. Filtration is used separate the impurities from the crude aspirin. To get purified aspirin‚ the precipitate was heated until all the excess had been removed
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purity. The purpose of our experiment was to synthesize aspirin from acetyl anhydride‚ salicylic acid‚ and sulfuric acid. And then determine the relative purity of the synthesized sample. The procedure performed in our experiment involved chemically reacting salicylic acid and acetic anhydride in order to form acetyl salicylic acid. The limiting reactant in this chemical reaction was salicylic acid‚ with acetic anhydride present in excess in order to react with any water produced during the reaction
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reaction of aniline and acetic anhydride. b) To purify acetanilide by crystallization method from water c) Purity check by melting range Equipment / Materials and Hazars: hot plate beakers(150‚250mL) ice stirring rod spatula Büchner funnel aniline weighing paper digital scales rubber tubing (hose) acetic anhydride filter paper
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EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID‚ Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds‚ chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the compound
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Manila 1008 Date Submitted: September 13‚ 2012 ------------------------------------------------- Abstract Carboxylic acid derivatives namely‚ acyl halides‚ acid anhydrides‚ esters and amides were classified through different reactivity tests. The samples used were acetyl chloride for acyl halide group‚ acetic anhydride for acid anhydride group‚ ethyl acetate for ester group‚ acetamide and benzamide for amide group. These derivatives were identified through the mechanism of hydrolysis‚ alcoholysis
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required) medications. Aspirin was the first discovered NSAID. [8] Aspirin among all these usefulness‚ do has its side effect such as upset stomach‚ heartburn‚ drowsiness‚ and headache. [9] The equipment used in this experiment are‚ Conical flask‚ Acetic anhydride‚ Salicylic acid‚ Concentrated sulfuric acid‚ Water bath‚ Distilled water ‚ Cold water‚ Hot water‚ Filter paper‚ Ethanol‚ Hot plate and Dry watch glass.
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