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Topic: Please help me with the solubility of phthalic anhydride in chloroform?  (Read 10504 times)

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Offline caphyboy

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Please help me with the solubility of phthalic anhydride in chloroform?
« on: September 25, 2006, 10:05:12 AM »
Dear friends:

       Recently,I carry out an experiment in which I want to purify  phthalic anhydride. However ,I only know it can be purified  effiiciently by recrystallizing ,and the best solvent is chloroform.But I donnot the   solubility .
        Would you help me ,please?

       Many thanks!!!
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Offline Albert

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #1 on: September 25, 2006, 10:31:09 AM »
« Last Edit: September 25, 2006, 10:41:59 AM by Albert »
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Offline movies

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #2 on: September 25, 2006, 11:50:42 AM »
My purification book says you can also distill it under reduced pressure.

Crystallization can also be done from CCl4 or benzene.

Sublimation may also be an option.
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Offline HP

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #3 on: September 27, 2006, 01:23:25 PM »
Yes, sublimation the best method for phtalyc anhydride.
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Offline AWK

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #4 on: September 28, 2006, 03:15:29 AM »
Could you check procedure in Vogel textbook?
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Offline AWK

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #5 on: October 02, 2006, 08:42:05 AM »
Vogel says only that phtalic anhydride is good soluble in chloroform, where us its common contaminant - phalic acid - is insoluble.
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Offline firassh2000

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Re: Please help me with the solubility of phthalic anhydride in chloroform?
« Reply #6 on: October 13, 2006, 08:36:02 AM »
u should used hot benzene and stirr it , fitered when it was hot
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