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how can one separate a mixture of benzoic acid and 4-nitrophenol?

sep. of benzoic acid n 4-nitrophenol using solvent extraction.
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how can one separate a mixture of benzoic acid and 4-nitrophenol?
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Topic: SEPARATION BY EXTRACTION  (Read 3637 times)

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Offline ggri0009

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SEPARATION BY EXTRACTION
« on: November 19, 2010, 03:11:45 PM »
Hi i was think about using water , diethyl ether .and also  sodium bicarbonate so that i can separate out the benzoic acid as benzoate. what do u think , am i on the right path?
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Offline Nicolas88

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Re: SEPARATION BY EXTRACTION
« Reply #1 on: November 19, 2010, 06:58:30 PM »
not sure but wouldnt it be easier to use acid-base extraction , the compound with the lower pka will react first with the base forming the salt that could be extracted.
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