Sorry guys, this one slipped by.
First thing, CBD crystallizes much more readily than CBDa. I’ve
had the best consistent results crystallizing with distilled material testing at least 60% CBD.
- Measure distillate weight
- Heat distillate to within 5-10c of solvent (Pentane preferably)(36c)
- Measure out half the weight of the distillate in solvent (1g pentane : 2g distillate)
- Heat solvent to within 5c of BP (ideally in glass reactor w/ reflux attachment)
- Combine distillate and solvent, fully mix (supersaturation)
- Cool to room temp
- Cool to 0c (precipitation)
- When happy with crystallization pour off liquid
- Use 0c solvent to wash crystals to purity over filter paper
- Dry in vacuum oven