Thursday
July 24, 2014

Homework Help: science(chem)

Posted by ~christina~ on Tuesday, May 5, 2009 at 7:53pm.

I have a question about compounds that oil out of solvents after drying.

How would I analyze this? Could I make a KBr pellet, or would I just be able to analyze it in UV spec?

I assume that the solvents used to dissolve the compound, would be used as a blank, right?

I tried to dry off the solvent used to dissolve the compound and it wouldn't completely dry off, and this is why I think it was oiling out of solution. I was originally planning on trying extraction after drying off the compound. I had no choice but to try to go and re-dissolve the compound in a solvent (CH2Cl2). It looked like it dissolved, but I'm not sure since the pasteur pipette looked as if it had an oily residue after I pipetted the solution over to another container....

Not sure what to do now,
Thank you

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