Working with improvised ziplock as separatory funnel, producing your extraction making use of plastic bottles that aren't specially bolstered to hold non-polar solvents, and many others, is all a large No-No. You should check THIS FAQ entry and the two one-way links on why plastic should not be employed and how to likely clean a product if it acquired in contact with plastic.
With the #three I would be much easier to decant/suck up the 'cleanse' solvent and return the rest with the offending black combine again in to the 'mom' combine and repull. There isn't a should evap/precip a pull That may have lye mix contamination.
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Is this electronegative terminal moeity the property that seemingly presents ethanol a simultaneous polar and non-polar stop? All of these words and phrases bringing again Reminiscences.
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Heptane evaporates faster and boils in a lessen temperature than naphtha. It will require less time and energy to distill it. The sole reason for ever working with naphtha is because it is less costly.
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In three times they are going to precipitate out forming awesome needle-like crystal in The fundamental solution. At this time, you can filter the solution (unpleasant method since the crystals are typically sticky and waxy) and retrieve any left alkaloids by dissolving them in acetone.
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