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Jenae Todd

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Jenae Todd March 1, 2010 Separation of Pain Relievers Report The purpose of this experiment is to be able to separate Aspirin, Phenacetin, and Caffeine from a compound tablet through different densities. Phenacetin Aspirin Caffeine Table 1: Starting Materials and product information of all reactions. Reactants/Reagents Quantity MW m.p. density Phenacetin 135°C Aspirin 135°C Caffeine 238°C Sodium Bicarbonate HCl Anhydrous Sodium Sulfate Dichloromethane Unknown A Procedure. The first week 25 ml of dichloromethane and 30 ml of Unknown A was added to a
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Unformatted text preview: separatory funnel. 30 ml of HCl was then added and the funnel was shaken. After allowing the layers to settle, the pH of the top layer was tested. The top layer should be acidic. Two flasks were labeled. One labeled “Aspirin & Phenacetin” for the bottom layer and the other “Caffeine” for the top layer. Draw off each layer into the appropriate flask. O C H 3 NH CH 3 O OH O O CH 3 O N N N N C H 3 O O CH 3 CH 3...
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