Experiment 5 - Recrystallization.docx

Experiment 5 - Recrystallization.docx - Amy Do Experiment...

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Amy Do Experiment No. 5 15 October 2015 Recrystallization Purpose : The purpose of this experiment is to purify a solid organic compound using a method called recrystallization in which a hot solution containing the compound is cooled slowly, forming crystals that have precipitated. The equipment that will be used is the vacuum apparatus which consists of a Buchner funnel amongst its other parts. Physical constants : Chemical Name M.W. M.P. B.P. Solubility Safety Precautions Aniline 93.13 -6 184.1 Cold water, hot water Away from heat, skin, eyes Acetic anhydride 102.09 -73.1 139.9 -- Away from heat, skin, eyes Acetanilide 135.17 111-115 304 Slightly in water Away from skin, eyes, clothes Acetic Acid 60.05 16.6 118.1 Cold water, hot water Away from heat, skin, eyes Sources: , , ? productName=AC150810010&produc , Structures and Equations: + + Aniline Acetic anhydride Acetanilide Acetic Acid Procedure: Mass out 4mL aniline
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