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Topic: 4-nitrophenol characterization  (Read 7507 times)

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lildimplz

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4-nitrophenol characterization
« on: March 10, 2004, 11:35:21 PM »
Why would 4-nitrophenol form a white precipitate in a halogen test using silver nitrate and nitric acid if there is no halogen in its structure?



Edit: edited title for better indexing. Mitch
« Last Edit: April 24, 2004, 06:36:21 PM by Mitch »
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Offline Mitch

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Re:4-nitrophenol
« Reply #1 on: March 11, 2004, 05:40:57 AM »
I don't think it should. Could you take a melting point of the precipitate to see if it is an Aryl halide. Or even a boiling point of the nitro compound to make sure it is what you think it is?
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Bystander

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Re:4-nitrophenol
« Reply #2 on: March 12, 2004, 01:41:30 AM »
You might be knocking it out of solution;  add a little ethanol and see if it dissolves/clarifies.
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Offline hmx9123

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Re:4-nitrophenol
« Reply #3 on: April 13, 2004, 05:56:59 PM »
Are you sure it's not silver nitrite?  Silver nitrite is used in nitrating aromatic rings in the Victor Meyer reaction.
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Offline Donaldson Tan

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Re:4-nitrophenol
« Reply #4 on: April 20, 2004, 04:20:45 AM »
perhaps it's insolubility at play?
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