Experiment 38: Identifying an Unknown Carbonyl Compound
Name: ___________________ ( ) Form 6 S
My sample is: ___________________________________________________
Reason: ________________________________________________________
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1. What factors decide the choice of
solvent in the recrystallization.
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2. How were soluble impurities removed
from the derivative?
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3. In the recrystallization procedure, why were the crystals dissolved in only the minimum amount of ethanol?
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4. If your sample had contained insoluble impurities, such as pieces of filter paper, cork, etc., suggest how these might have been removed.
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5. Why
is it not satisfactory to identify aldehydes and ketones by measuring their
boiling points?
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The End