Zeolite and polymer resins for THC remediation

If anyone has analytical needs, I got you!

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Could you give the hint again on partial decarboxilation cause i can t find it for the love of god :fist_left:

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Sure ,thc and CBD are very similar -itā€™s hard to separate this 2 ,
the biggest difference (exploit) would be between acidic molecule of CBDA and fully decarboxylated THC (not THCA).
Zeolite ( many types of raisins ) is used as a very ā€œstickyā€ stationary phase ,
principal used is not a size exclusion but rather force interaction between stationary phase ( you canā€™t elute (make it move ) the thc and CBD but CBDA is moving easy down the column + b80 will clean the color if loaded at the bottom .
Try pentane to see how easy it is ( but only around 20%-30% would come out rest would be still stuck to the column .
Second wash -with the toluene(my choice ) all cannabinoids would come out almost nothing ( 3%-5% CBD/thc) And the colored junk will stay stuck to zeolite and b80 - I usually not do the 3rd wash sending zeolite and powders to garbage can.

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We have gotten our 3-5% thc crude down to less than .2% with selective decarb and cheaply packed columns.

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Yep 100% with you ! No brainer to get it down to the minimum

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I hope it will help someone ā€¦

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As example of @termite ?

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@Rowan. You have tryied @Termite s Sop for thc remediation ?
I barely work with cbd and getting cbd crude is a hassel i ll be getting some this friday for trying this sop
I have the mol sieves in 3a and tolueen
So i should have answers soon
But i am dooing it for plain curiosity
I have no use for it other wise
Question ; is the partial decarboxilation achieved only. By not decarboxilating. By means of heat in in 1/2 the time frame it would normaly take ?
I don t mind riddels but to be able to try this asap i am only receiving 100ml
Cbd crude and i hate to f&$/:: up the first step and be back at square one
Thx

I wish I had every answer to your questions- the decarb process is not based on heat but on other conditions but i donā€™t have full sop available to me

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US8980941B2 - Controlled Cannabis decarboxylation - Google Patents
Decarboxylation Study of Acidic Cannabinoids: A Novel Approach Using Ultra-High-Performance Supercritical Fluid Chromatography/Photodiode Array-Mass Spectrometry - PMC

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I can say for sure we are not using vitamin B.

I think itā€™s a lot simpler than that

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Are you decarbing (partially) to change the polarity between THCA and THC since the acid form is more polar and CBDA is less polar allowing for the polar solvent soaked zeolite to hold onto the THC longer and allowing the CBDA to pass through?

based on my interpretation of what termite is sayingā€¦

you are separating based on polarity. thc and cbd are both very close to one another in terms of polarity. you can increase the difference in polarity between the two molecules if one of them is in the acidic form. this is where the partial decarb comes in. CBD can hang onto its carboxylic acid a little better than thc. im assuming that if you ā€œhalf decarbā€ you will convert more of the THC than the CBD.

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Yes i think so to looking at the papers mentioned above
Thc-a decarbed twice as fast and straight forward although @srihugh1
Might not agree
My guess is give a short heat spike of 220C should decarboxilate the small % of thc-a or oxidadate to cbn some of it
Then proceed with the sop as stated

i dont work with cbd a lot but when i do, i use a higher temperature to decarb.

when we used our THC oil decarb conditions, the CBD was never fully decarbed.

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Agree
I know that acitic conditions also make the de carboxilation happen
Even citric acid and time get it done
I wonder if a specific acid would trigger thc-a more than cbd-a to decarboxilate
I have some malaic acid at hand I ll see what that does
I wonder if the Mgo adding to lower decarboxilating temps favors thc-a decarboxilation

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I apologize for the late reply, but the months leading up and in to 2020 have been so hectic that Iā€™ve had difficulty keeping up with all the forum notifications. I think I can put this together for those questions I read, in case you folks havenā€™t already solved the case in another threadā€¦

:thinking: As I understand it, the purpose for ā€œhalf decarbā€ (which is actually about a quarter decarb of all cannabinoid acids present) is specifically to change the activity of a portion of the THCa to that of THC. The lack of the COOH moiety allows a layer of THC molecules to adsorb to the zeolite (probably by its OH groupā€™s affinity for the superficial oxygens on the zeolite surface, which is reinforced by the nonpolar mobile phase). In turn, this exposes mainly the most nonpolar ā€œbacksideā€ of the THC molecule to the solution containing the other cannabinoids. Following the birds of a feather principle (like dissolves [aka: has affinity for] like), we can now expect the remaining THCa molecules to adsorb/adhere to the monolayer of THCā€¦ their backsides spoon together perfectly. Meanwhile, the rapidly spinning, acidified double hydroxyl CBDa has much lower affinity for the newly formed ā€œTHC balls and THC:THCa ballsā€, and much higher affinity for an acid-containing solvent. These conditions also explain the need for an aromatic solvent (toluene or xylene) to ā€œcleanā€ the THC off the stationary phase.

Thatā€™s a long explanation for a rather elegant solution: Decarbing half the THCa and none of the CBDa allows us to build a crude ā€œmolecularly imprinted particle/beadā€ out of zeolites, clays, or other hydroxyl-functional materials! Very clever, indeed! :face_with_raised_eyebrow:

Itā€™s natural nanotechnology on a nanomaterial solid support! With this in mind, Iā€™m sure yā€™all can begin to see how to optimize this process, as well as how it might fail! I know I can, and collectively you all have hundreds of times more thought processing power than I do, alone! :nerd_face:

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I think you are exactly right with your analysis. Great summary. Thanks for your explanation!

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Iā€™ve been trying to wrap my head around this for a while. So I guess I need help with spooning the meat and potatoes.

The part I"m a little confused on, is the mystery acid to be added if using crude (which is what one would expect needing to decarbā€¦ does non decarbed ditsy exist??).

For the purpose of trying to isolate the thc portions, does the acid spiked solution risk isomerizing the cbd into either of the thc deltas? Seems like the finished cbd/cbda solution sitting in the acid spiked heptane would cause some problems. Or that only a worry with added heat?

Thanks.

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Yā€™all gonna need some time to splice those plasmids into the appropriate bacteria and determine fermentation feed and parameters!

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