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Author: Subject: Acid Base extraction of Harmaline
inertia
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[*] posted on 2-8-2014 at 05:31
Acid Base extraction of Harmaline


I've been trying to extract Harmaline from Peganum Harmala. Everything was going well and then - pink froth that won't separate.

I acidified a solution to PH 2, filtered out solids twice, removed plant fat with plenty of toluene, and when I added some basic water to precipitate Harmaline, I got white crystals precipitating out. I could have probably vacuum filtered the solution to isolate the crystals (which I guess I'll do next time), but instead I added some warm Naphtha and stirred, and got a pink foam. I figured it was just an emulsion, and let it sit, but now two days later, the "emulsion" is no closer to anything else. I'm looking for a naphtha layer, but instead I have this foam. Is there any way to salvage anything from it?
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[*] posted on 2-8-2014 at 12:16


Could you centrifuge it?



As below, so above.

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[*] posted on 2-8-2014 at 13:03


You could reacidify, heat to boil off the naphtha, then basify and collect the crystals that you mentioned.
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[*] posted on 2-8-2014 at 13:53


Quote: Originally posted by Cheddite Cheese  
Could you centrifuge it?


I wish. It looks like I'll just have to start anew.
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[*] posted on 4-8-2014 at 20:37


Quote: Originally posted by inertia  
Quote: Originally posted by Cheddite Cheese  
Could you centrifuge it?


I wish. It looks like I'll just have to start anew.


Try adding diatomaceous earth, then filter.

Did you grind the seeds or were you doing extraction on the whole seed?
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