Abstract: For the first part of this lab we refluxed different Carboxylic acids and alcohols in the presence of a acid catalyst in order to form Esters by Fischer Esterification. These Esters had different pleasant smells that we then evaluated. In the second part of the experiment‚ we broke the ester bonds of a triglyceride in order to form glycerol and carboxylate salts. This process is known as Saponification because it produces amphiphilic molecules that allow soap to remove dirt from the surface
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Synthesis of Aspirin Learning Goals 1. To synthesize aspirin from salicylic acid and acetic anhydride. 2. To purify the crude product by Recrystallization. Introduction Most drugs are chemical compounds which are described as "organic compounds" because they are comprised primarily of the elements carbon‚ hydrogen and oxygen. The present experiment will be the synthesis of a familiar organic compound called aspirin. The common chemical name is acetylsalicylic acid. Aspirin‚ the
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Abstract Fisher Reaction is a special type of esterification that uses an acid catalyst to reflux Carboxylic acid and Alcohol. The product Ester is in equilibrium to the reactants acid and alcohol. Ester is responsible for the smell and aroma of different fruits. After using the Fisher reaction‚ a combination of techniques is used to separate the product. Introduction Esters are naturally occurring compounds that possess a distinctive odor. It is responsible for the smell of different fruits
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Crystallinity of SAPO-5 With Molar Composition The given mixture composition (Al: 1.3 P: 0.8Si: 1.2TEA: 100H2O ; Al: 1.3P : 0.05Si: 1.2TEA: 100H2O ; Al: 1.3P : 0.05Si: 0.2TEA: 100H2O) is used to study the overall effect of silicon in AFI framework.The SiO2 magnitude is varied mole ratio from 0 to 1.0 of the given SiO2 to Al2 .The crystals SEM images that is obtained by using various contents of silicon are representing the sample produced in the absence of silicon in reactant gel is similar to the
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The present invention relates to polyvinyl chloride plastisol compositions‚ for example sealant compositions. In the manufacture of automobiles‚ the automobile body is initially primed with a coating composition to prevent corrosion of the metal. This can be done in a number of ways although generally it is performed by cationic electrodeposition using the auto body as the cathode. Once the automobile body has been primed in this manner‚ subsequent steps in the assembly are carried out. These
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INVESTIGATORY PROJECT Flower bloom perfume Submitted by: Ma.anne Briones Frances Blanco
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salicylic acid and acetic anhydride. In the reaction the hydroxyl group on the benzene ring in salicylic acid reacted with acetic anhydride to form an ester functional group. This method of forming acetylsalicylic acid is an esterification reaction. Since this esterification reaction is not spontaneous‚ sulfuric acid was used as a catalyst to initiate the reaction. After the reaction was complete some unreacted acetic anhydride and salicylic acid was still be present in the solution as well as some
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turn blue No presence of Nitrogen Test for Halogens Beilstein Test Copper wire + Flame No Green flame No presence of Halogen Silver Nitrate Test Heat + AgNO3 No white precipitate No presence of Halogen Test for Sulfur Diluted Acetic Acid + Lead Acetate + Heat No brown precipitate formed No presence of Sulfur Table 6.5Qualitative Tests for Functional Group Test for Alcohol: Chromic Acid Test Sample Treatment Observation Inference Unknown Sample 5% K2CrO7 + 5% H2SO4 + Heat No color change Not
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from the molecule by ionization: CH3CO2H → CH3CO2- + H+ Because of this release of the proton (H+)‚ acetic acid has acidic character. Acetic acid is a weak monoprotic acid. In aqueous solution‚ it has a pKa value of 4.75. Its conjugate base is acetate (CH3COO−). A 1.0 M solution (about the concentration of
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requirements. PEP Process Module 2 19 Aug 1999 SRI Consulting About This Process Current global capacity for acetic acid exceeds 6.4 million t/yr. Downstream applications for the acid are primarily as a precursor for vinyl acetate monomer synthesis‚ for acetic anhydride production‚ and as a solvent in purified terephthalic acid production. Methanol carbonylation to produce acetic acid using a homogeneous Rh catalyst accounts for more than 55% of global capacity‚
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