Experiment 4

Experiment 4 - Experiment 4 Separation of a 3-Component...

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Experiment 4: Separation of a 3-Component Mixture Results and Discussion We measured out about .629 grams of the 3-component mixture. After extracting our base (benzocaine), about 0.051 grams was recovered. This resulted in a percent recovery of 32%. The literature melting point value of benzocaine is 88-90ºC. Our experimental value of the recovered benzocaine was about 79-80ºC. This shows that our benzocaine that we retrieved from out 3-component mixture may have still had trace amounts of fluorenene and benzoic acid in it that may have caused a change in the melting point. After extracting benzoic acid from the remaining mixture, there was about 0.042 grams of benzoic acid recovered. This resulted in a percent recovery of 26%. The literature melting point value of benzoic acid is 121-123ºC. Our experimental melting point value of benzoic acid was 115-119ºC. This melting point is slightly inaccurate, thus indicating the presence of impurities. The Fluorenone (neutral) was the last to be extracted from the remaining mixture.
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This note was uploaded on 07/19/2009 for the course CHEM 234-54 taught by Professor Morrison during the Spring '09 term at UGA.

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Experiment 4 - Experiment 4 Separation of a 3-Component...

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