VividVisions420
Esteemed member
after a hot heptane wash and freeze precipitation, some heptane is remaining is that reusable or should be allowed to naturally dry?
If it was me it would be naturally
Unfortunately humidity is a terrible factor. When removing covered dish from freezer, it instantly becomes covered in moisture to the point that water droplets have covered the dish. If one where to uncover dish before reaching room temperature, would water condensation inside the dish happen just as the outside does, therefore contaminating with water the goods?..sorry i do not understand the part with water condensation.
if you want to reuse the solvent then you freeze the solvent, seperate xtals with a filter paper then store the solvent again.
i do not know about heptane becomeing white and creamy.
prefering to have 1 bottle with clean solvent, 1 with used but not dirty solvent and 1 bottle with dirty solvent.
the dirty solvents can be cleaned with coal i think.
there should be a link to the forum page for cleaning solvents.
Yes - this is the main reason why it's suggested to pour the naphtha/heptane off quickly, then replace the lid of the precipitation vessel, before placing it back into the freezer either on its side or upside down so that the naphtha remnants can drain off without condensation forming on the inside of the vessel, and also so that the naphtha remnants stay as cold as possible, thereby minimising the amount of DMT that gets lost during the draining process.Unfortunately humidity is a terrible factor. When removing covered dish from freezer, it instantly becomes covered in moisture to the point that water droplets have covered the dish. If one where to uncover dish before reaching room temperature, would water condensation inside the dish happen just as the outside does, therefore contaminating with water the goods?..
Now that is making good sense! Thanks a tonYes - this is the main reason why it's suggested to pour the naphtha/heptane off quickly, then replace the lid of the precipitation vessel, before placing it back into the freezer either on its side or upside down so that the naphtha remnants can drain off without condensation forming on the inside of the vessel, and also so that the naphtha remnants stay as cold as possible, thereby minimising the amount of DMT that gets lost during the draining process.
Now I see why people are talking about evaporating their solvent before freeze precipitation. The concentration of dmt in that nps will be so low, it's no wonder almost nothing will precipitate.This is interesting![]()
that was the third and final pull. The photo definitely makes it look more than there is! However, the issue is what is happening with that white emulsion layer?!that looks like a lot of solvent.
how much soup and solvent is in the jar?
1/3 of the jar being solvent feels too much imo.
how long was the solvent in the jar?
is there an emulsion layer visible in the bottom of the solvent?
that was the third and final pull. The photo definitely makes it look more than there is! However, the issue is what is happening with that white emulsion layer?!