hey guys so I got a problem...the past 2 extract attempts have been ruined it worked great a few times! but after the freeze I puill out the tray pour off naptha then throw it in front of a fan....well now its like condensation builds up on the tray faster than the fan can evap and all the crystals get diluted down in the water I guess and nothing there....I don't know what is going on any help would really be appreciated!
-
Members of the previous forum can retrieve their temporary password here, (login and check your PM).
need help extract problem!
- Thread starter breeze225
- Start date
Kumarajiva
Rising Star
Do not fan it. You are oxidizing it and the resulting oxide is liquid drops that you see.
Instead, tilt the tray on the one side when you place it into the freezer, then after the precipitation, tilt the tray to other side so the solvent will not cover the crystals and leave it like that for another 8 hours or so, then just pour off the solvent, cover the tray with plastic wrapper, make few small holes in it and put back into freezer to dry.
Also, could be water condensing on the sub-zero surface. Just leave it to dry in the freezer.
Vac chamber is a good idea as well, though i would use hexane instead of heptane/naptha. Easier to purge in vacuum
Instead, tilt the tray on the one side when you place it into the freezer, then after the precipitation, tilt the tray to other side so the solvent will not cover the crystals and leave it like that for another 8 hours or so, then just pour off the solvent, cover the tray with plastic wrapper, make few small holes in it and put back into freezer to dry.
Also, could be water condensing on the sub-zero surface. Just leave it to dry in the freezer.
Vac chamber is a good idea as well, though i would use hexane instead of heptane/naptha. Easier to purge in vacuum
