Aspirin - Aspirin Synthesis and Analysis February 11th,...

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Aspirin Synthesis and Analysis February 11 th , 2008 Lab Section 2107 Course Number 4103 Simon Duri Amanda Quella
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Purpose : To synthesize aspirin, test its properties, and to determine its molar mass. Procedure : Synthesis of Aspirin : 1. 2.136 grams of salicylic acid were weighed out 2. 4.0 mL of acetic anhydride was added to the salicylic acid, along with 5 drops of sulfuric acid. 3. This test tube mixture was placed in a hot water bath for 20 minutes. 4. The test tube’s contents were poured into an ice water bath and the test tube was rinsed to make sure all of its contents were in the cold water. 5. The mixture was cooled to room temperature and a while precipitate was formed in the cold water. 6. The precipitate was then dried through a vacuum filter. The beaker was rinsed with deionized water and scraped so that all of the precipitate was filtered. 7. The sample was dried for 15.5 minutes. 8. A 50 mL beaker was weighed and then the sample was added in order to determine the mass of the sample. Preliminary Testing of Aspirin 1. Three test tubes were labeled “salicylic acid,” “pure aspirin,” and “product.” 2. About 1 mL of 95% ethanol and 1 drop of 1% FeCl 3 were added to each test tube
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Aspirin - Aspirin Synthesis and Analysis February 11th,...

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