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Old 05-06-2017, 08:02 AM #191
Whosayingkazam
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Thanks what perferdered solvents would you use for recrystalization I have a lot of starter seeds from Pangaes method and would like to clean them and recryst them aswell
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Old 05-07-2017, 04:18 AM #192
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Thanks what perferdered solvents would you use for recrystalization I have a lot of starter seeds from Pangaes method and would like to clean them and recryst them aswell
Me found some nice ones myself recently

Try putting them on a filter and washing with small amounts of super cold pentane or hexane?
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Old 05-07-2017, 07:54 PM #193
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Cyclohexane might be worth a try, freezes solid at only 44F. (I know because I forgot and stuck the bottle in the fridge.)

Melting point 6.47 °C (43.65 °F; 279.62 K)
Boiling point 80.74 °C (177.33 °F; 353.89 K)
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Old 05-20-2017, 04:58 PM #194
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Old 06-14-2017, 12:04 AM #195
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Finally made some breakthroughs in the lab last week...




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Old 06-14-2017, 04:52 AM #196
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Macroscopic pictures don't speak a thousand microscopic words, unfortunately. Looks great though! Are those processed differently, or are the white crystals washed versions of the previous yellow chunks?
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Old 06-20-2017, 01:03 AM #197
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dybert - would you care to share your methods and solvents used?

my question for pangea or anyone else that wants to weigh in - is there a reasonable way to produce thca isolate anywhere from 90%-99% using low quality shatter that has sugared? i am starting work on cleaning up some shitty slabs, and while i am likely just going to be winterizing, this thread makes me wonder if i can take advantage of the crystallization that has already occurred and produce a bit of isolate, but there isnt any seperation happening, the oil as is isnt pure enough, so its just a big mass of sugar goop.

i currently have a small jar with about a gram of the oil that i diluted with essential oil to mimic terpene content, mixed well, and added a small dab of the unmixed sugar was as a kind of "seed crystal", but its not really a crystal, and there might be to many impurities for seperation to occur.

dybert - im very interested in your method since your starting material seems to be a much higher quality version of what i am working with...a mass of tiny crystals, rather than the larger seed crystals which can be mechanically washed over a filter or with very minimal agitation.
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Old 06-20-2017, 01:11 AM #198
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Video of Kate Welch, Pharm D and Skunk Pharmers at PSU,

https://skunkpharmresearch.com/2017/...armers-at-psu/

https://youtu.be/NudRsTb4sb0

By the time you get to the end of the video you'll know in relative detail the most efficient process for producing THC-A and CBD-A crystals.
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Old 06-20-2017, 05:35 AM #199
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Originally Posted by SkyHighLer View Post
Video of Kate Welch, Pharm D and Skunk Pharmers at PSU,

https://skunkpharmresearch.com/2017/...armers-at-psu/

https://youtu.be/NudRsTb4sb0

By the time you get to the end of the video you'll know in relative detail the most efficient process for producing THC-A and CBD-A crystals.
I think Joe can doe better than he did with those solvent washes.... calling you out, Joe!!
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Old 06-25-2017, 09:41 PM #200
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Regarding Joe's mention of centrifugation. An actual CPC (centrifugal partition chromatography) or a traditional lab centrifuge?
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