Dear Georgi
Have you tried acetic acid as a solvent for purification? I have carried out purification on a similar type of tetra carboxylic acid and it works fine.
regards
Vijay Sane
vsane@hotmail.com
>From: Georgi Ginev
>To: Orglist net
>Subject: ORGLIST:PTCDA purification, solving
>Date: Wed, 25 Sep 2002 06:18:02 -0700 (PDT)
>
>Someone to know a purification method for PTCDA,
>3,4,9,10-Perylenetetracarboxylic dianhydride [CAS#
>128-69-8]
>If it is vacuum sublimation I need more details about
>the pressure and temperature conditions.
>Also I need a organic solvent for this material.
>Many thanks
>
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