Purifying Extract Using Dry Column Liquid Chromatography

[EugeneOregon]

After boiling off and purging the solvents used, the middle fraction noted in the video yielded a pale yellow concentrate that is sticky but liquid at room temperature. The potency of this fraction is CONSIDERABLE and the extract is substantially free of all respiratory irritants.

The first yellow/orange fraction, after solvent removal has a particularly foul odor reminiscent of burnt transmission fluid. Very little oil in that fraction and the odor will cause me to discard it. Smells strongly of pine as well.

All items shown including solvents used are available on Amazon. The solvents are highly flamable so precautions against fire are in place.

 

[EugeneOregon]

Here is the middle fraction after four cycles of gentle heat then high vacuum to purge all solvents. Oil is stirred while gentle heat applied (set on my stove at about one third - less than water will boil at), then when petri dish is almost too hot to handle I place it into my small vac chamber and pull hard vacuum until bubbling stops. About the fourth time there are no more bubbles under hard vacuum. This photo shot while extract was warm to the touch, and it runs slowly. Judging from the vaping it is nearly pure cannabinoid.