E.g Heptane or naptha for freeze preciping spice? Is heptane like naptha in that it only extracts spice instead of jungles? With all your #three I will be much easier to decant/suck up the 'thoroughly clean' solvent and return the rest with the offending black mix again into your 'mother' https://eduardobczus.blogolenta.com/33343385/deadheads-usa-for-dummies