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- Description:Properties of aspirin, full kit
- Cat. no.:470225-580
- Supplier No.:AD-WE9354-KIT
- No. of Uses:15
What is Aspirin made of?
- Classic AP chemistry experiment
In a reaction vessel salicylic acid, acetic anhydride and sulfuric acid are mixed. The exothermic reaction will cause the temperature to increase to 70 to 80 °C. Once the reaction is complete the vessel is cooled in an ice bath and the acetylsalicylic acid crystallizes out. This material is re-crystallized in toluene to purify the product. The product identity is confirmed by melting point. The mass of the re-crystallized product is used to determine the yield of the synthesis. In this experiment, we will perform the synthesis of acetylsalicylic acid (aspirin), purification by re-crystallization and use melting point to confirm identity.