Acid Base Extraction

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ethyl 4-aminobenzoate were to be separated by extraction from an ether
solution. Once the separation took place, and crystallization was carried out,
it became possible to determine what components were in the unknown mixture, by
means of a melting point determination.

Results

Procedure Observations
Inference

Dissolve 3.05g Phenol Mixture was a golden-Neutral acid
in 30ml brown/yellow color t-butyl methyl ether in
Erlenmeyer flask and transfer mixture to 125ml separatory funnel using little
ether to complete the transfer

Add 10 ml of water Organic layer=mixture
aqueous layer=water(clear)

Add 10 ml saturated aqueous Sodium bicarbonate NaHCO3
dissolves in solution sodium bicarbonate
water. to funnel and mix cautiously with stopper on

Vent liberated carbon Carbon dioxide gas dioxide and shake the
mixture was released three times thoroughly ...

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HCl dropwise blue to pink. Flask
complete while testing with litmus 2 = white solution paper
and cool in ice

Decant ether from flask 3 into a tared flask

Boil ether with boiling chips

Do a vacuum filtration and Solution turns to a
Crystallization is now recrystallize ether by dissolving it solid.
complete in 5ml, taking out boiling chips, adding drops
of Ligroin until the solution was cloudy and cool it in ice

Isolate crystals from flask 2 by Crystals = creamy-white Dried
crystals are now vacuum filtration and wash with powder
ready for melting point a small amount of ice water
determination and recrystallize it from boiling ...

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