For further information please see the attached figure.
Abdualrahman,
You might try to dissolve the compound in a proper solvent, filter the solution, partly reduce its volume using rotary vacuum evaporator /temperature not exceeding 40 oC/ and let the solution crystalize at subzero temperature. Ethanol, methanol, ethylacetate or acetone might be used as a solvent as I think, though it would be better to check for solubility, chemical stability and thermostability of your final in chemical tables.
R.S.
Dear Abdualrahman :
firstly check TLC to know the Rf for your sample.this will help to determine the suitable solvent for extraction and separation. I prefer to use freeze dryer technique in stead of rotary evaporation process.this will prevent any decomposition might happened during purification .
Dear Abdualrahman
Since it is an organic acid and produced in the acidic medium, neutralise the access acid by an alkali and even after neutralisation, add excess alkali as your substance being acid forms a soluble salt. filter and the filterate should be carefully neutralised by an acid under cooling yields your product that can be filtered and recrystallised I feel.
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