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Aspirin - Aspirin Lab Lab Section Course Number T.A Ruili...

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Aspirin Lab February 27, 2008 Lab Section Course Number T.A. Ruili Gao Michael Kowalski Purpose- The purpose of this experiment is to determine the combination of aspirin. The combination for aspirin is a mix of both pure aspirin and salicylic acid. The purpose of this experiment is to determine the purity and identity of aspirin. Procedure- Week 1 Synthesis of Aspirin
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About 2 grams of salicylic acid was weighed and transferred to a 150 mm test tube. 4 ml of acetic anhydride was added to the test tube containing salicylic acid using a graduated cylinder. The content was mixed. 5 drops of on concentrated sulfuric acid was added to the mixture and swirled. The test tube was placed in a boiling bath for 15-20 minutes. A 250 ml was filled 1/3 with ice and 20 ml of water was added. The mixture was placed in the fume hood. Once the mixture was heated the water and ice mixture was added. The test tube was let cool to room temperature. Using a stirring rod, the large particles were broken up. The aspirator was turned on and the filter paper was moistened and the mixture was slowly poured into the Buchner funnel. The solution was rinsed and the vacuum was turned on getting rid of all
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