I have cannbidiol crystals in pentane. I dried them using rotary evaporator but still pentane is very high(30000ppm).
Any suggestion is welcome.
Use a vacuum desiccator, such as:
https://www.belart.com/suggested-search/product/desiccators.html
Ensure that as you dry you has as high a surface area as possible. A skin or crust can lock in solvent.
Kind regards.
Rob
Dear Muzamal Iqbal
Vacuum pressure and heat are applied to a thin film of oil, allowing it to evaporate before condensing and accumulating in a receiver flask or other capture vessel.
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