I am trying to convert CBD to THC using citric acid.
Why does the resulting oil crystallize over time?
Is there a high concentration of CBD that has not been fully converted?
Residual citric acid/baking soda?
My process.
Put CBD : dH2O : citric acid in the ratio of 1g : 2g : 0.15g in a flask and reflux at 120°C for 12 hours.
Then add 1.31 g of baking soda to 1g of citric acid to neutralize it. (At this point, bring the solution back to room temperature.)
Add 2 - 3 times the amount of NPS(I use hexane) to dH2O, separate the aqueous layer and discard. (I do this in sep funnel)
Wash the NPS once with an equal volume of dH2O. (20 ml dH2O to 20 ml hexane)