Synthesis of Aspirin
In a reaction vessel salicylic acid, acetic anhydride and sulfuric acid are mixed. The exothermic reaction will cause the temperature to increase to 70-80°C. Once the reaction is complete the vessel is cooled in an ice bath and the acetylsalicylic 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 using melting point to confirm identity.
Kit Includes:
- Acetic Anhydride UN1715 - 25 ml x 2 Bottles
- Salicylic Acid - 15 g x 1 Bottle
- Sulfuric Acid Concentrate UN1830 - 25 ml x 2 Bottles
- Toluene UN1294 - 25 ml x 2 Bottles
Materials needed but not supplied:
- (# 4125-1) Melting Point Apparatus - 15 pcs
- (# 788-52) Thermometers - 15 pcs
- (# 3361-2) Burner Stand - 15 pcs
- (# 3017-5)Bunsen Burner - 15 pcs
Please note that the pictures may show items not included in this kit, the pictures are there to show kit functionality. Please refer to the product details above for more information on the contents of this kit.
DOT: Small quantity exemption 173.4. This package conforms to 49 CFR 173.4 for domestic highway or rail transport only
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