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Unformatted text preview: which matched the normal melting point range: 122C- 123C. Discussion Overall, this experiment ran smoothly and the only minor problems encountered were emulsions. To fix this problem, distilled water was added to the separating funnel and we had to shake it until the emulsions broke up. In this experiment, we dissolved the mixture of 2.028g in 40 mL of dichloromethane. An acid extraction of benzocaine was performed as we added 15 mL of HCl. The benzocaine was recovered from the aqueous acid layer when we added 6M NaOH. A vacuum filtration was performed to isolate the crystals. The benzoic acid was extracted from the dichloromethane and vacuum filtration isolated the crystals. I was successful in extracting pure benzoic acid from a mixture, but the benzocaine I recovered was still a little impure due to minor errors....
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- Spring '07