EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
Question
Chapter 3.2, Problem 29E
Interpretation Introduction

Interpretation:Solvent that is used to rinse filter cake in filtration step of recrystallization should be determined. Also, whether solvents need to be cooled prior to use or not should be determined.

Concept introduction:Recrystallization is technique that is used for purification of organic compounds. This process includes dissolution of solid in specific solvent at high temperature and then crystals are made again by process of cooling. Temperature of crystals is decreased to allow impurities to remain in solution only.

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1.What is the purpose of washing the recrystallized solid with solvent during the vacuum filtration step? Why should the solvent be cold?
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Why should the recrystallization solvent have a fairly low boiling point?
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