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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: staphlee on July 31, 2009, 04:26:10 PM

Title: How to separate my water-soluble ligand from LiOH
Post by: staphlee on July 31, 2009, 04:26:10 PM

Hi all, I have a question. After my reaction done and solvent removed, I have a my ligand, LiOH, 2-pyridinecarboxaldehyde in the flask.

1. How can I separate my ligand out from LiOH and 2-pyridinecarboxaldehyde???
    My ligand is soluble in H2O, CH2Cl2, THF, MeOH
2. If I use saturated brine solution to do extraction, the LiOH solubility in H2O will be decreased??

Please help me....

Title: Re: How to separate my water-soluble ligand from LiOH
Post by: arborescent on August 03, 2009, 10:16:49 AM

Can't you just do an extraction with an organic solvent, like CH2Cl2? LiOH should remain in the aqueous phase.