Ya, I see a massive different in melting point and energy required to decarb between different extracts. Badder will easily melt at 95c but crystallize that same mixture and the jar would sit at 95c for days and still have diamonds in the bottom. I’m sure this comes into play in dabbing and inhaling. Dabbing is just high temp distillation with your lungs as the condensers.
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Is there documentation of this? If it’s that easy to racemize THC I wonder if the same holds true for CBD since (+)-CBD is reported to have a high affinity for the CB1 receptors and could be psychoactive.
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Flash melt and flash decarb and flash THC vaporization.
I think it MAY be one thing to melt THCA without significant decarb but another thing to boil liquid THCA with out decarb.
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I recall a reclaim test from dabbed diamonds being something like 35% thca still. @AlexSiegel iirc you were telling me about that?
@moronnabis and ya melting temp is around 120c but boiling under vacuum is like 160-165 if vac is deep
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Boiling and vaporization may not necessarily be motive force behind the mass transfer of thca in that case…the flux of thc is large.
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This was the science I was looking for. Thank you.
I’m still curious how it goes back to thca or stays as thca in vapor form from heat/ resolidifies as thca
more so: if thca is inactive when inhaled or has medicinal benefits or harm to the body.
Now a more fun question: Can you make a d9thc Aerosol without heat that is higher in dosage than a dab?
how much co2 do you think is emitted from thca to thc in a 0.1g size dab?
At what temperatures do you think you will see less thca re-appear? or do you think that has no effect?
0.1 grams x 0.90 (90% THCA) = 0.09 grams = 0.09/358.47 moles (THCA molar mass) ≈ 0.000251 moles THCA
0.000251 moles THCA x 1 mole CO2 per mole THCA (from the decarboxylation) = 0.000251 moles CO2
0.000251 moles CO2 x 44.01 g/mol (molar mass of CO2) ≈ 0.0111 grams of CO2
So, approximately 0.0111 grams of CO2 would be generated from a 0.1 gram dab of 90% THCA assuming total decarboxylation.
More variables in play then just this but there ya go
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so roughly .04 would become ~ .051 upon inhale?
@rocksteady rough guestimating? if im following along.
It’s a pretty straightforward calculation. One mole of CO2 is released per mole of thca decarbed. It’s 1:1
The main variable is how much material is decarbed throughout the process of taking the dab.
If the above is true, and decarb is not absolute, then the figure I posted is a high value.
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Absolutely, but for math sake we needed a value and some variables controlled.
@.@ Takes another dab
“Now a more fun question: Can you make a d9thc Aerosol without heat that is higher in dosage than a dab?”
@moveweight : Lots of questions.
Yes composition of “inhaled air” ;now look up composition of exhaled air. thus my obtuse crack about CO2. Do your calculations in mole equivalents and compare with the mole equivalent of normal exhaled breath.
You will have to review some physics to get d9THC into an aerosol without heat ?? There is a group Portland State looking into such aspects of aerosol composition of dabs.
there is work to suggest that combinations of cannabinoids can lead to greater concentrations of THC in dabbed aerosols. If I can find the paper I’ll append the work.
but without heat the only way is to prepare a solution and nebulize it. The best solutions that I know of are ethanol louches prepared with physiological salines. Works well.
But I can not really speak about it.
THCA has it own pharmacology , quite separate from THC.
And there is one pharmacodynamic study which studied the appearance and life time of measurable THCA levels in blood after subjects smoked joints. So THCA gets into aerosols.
Is it possible to boil liquid THCA at a temperature and pressure with out decarb? Perhaps @Dukejohnson will give us that reference about 160-165 deep vacuum. Assuming that is Centigrade…I think it is well above the temp for decarbing THC? I’m seeking information…please advise.
Two very interesting articles on cannabinoid aerosols:
acsomega.9b02301.pdf (1.1 MB)
(DOI: 10.1021/acsomega.9b02301)
s42004-020-00342-9.pdf (494.0 KB)
(Open questions on the physical properties of aerosols | Communications Chemistry)
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I was joking above…about CO2…
Yes mole equivalents of inhaled CO2 seem intuitively insignificant. That is why I never “thought about it like that”.
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okay lets assume the average dab decarbs 70% of the available THCA. lets assume the average dab is .1 grams 90% thca.
with those fixed variables the average dab releases .00774g of CO2
for the luls
the average set of lungs has a volume of like 500ml
co2 levels in atmosphere right now are like .04%
every time you breath in; you breath in something like .04 grams CO2
seems pretty insignificant
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Breathe out…CO2 loaded by respiratory exchange.
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XD good, we can put that silly concern to rest.
Same for me <3 night yall
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interesting thought… I wonder how much “air” is in a dab breath and what % of the volume of breath is taken up by actives and inactives from the dab itself
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I posit that rig (nail+pipe+heat source) design could also play a big part in the aerosol dynamics here. Rig design seems to be much more variable ontop of the air mix can be widely more variable than the common cart, which is probably the best place to start such studies due to popularity alone.
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when the product doesn’t pass microbial testing
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Marketing in 2023.
Funny watching this industry get worse as it advances during these dark ages.
This shit is depressing to watch or participate in. Nothing new. Stolen Teks aren’t worth a dollar anymore and that’s why nobody has anything new to deliver except Synthetics chasers. I can’t imagine pushing shit I don’t pay a penny for.
Most exciting thing all year was someone making a 30k dry sift machine. Womp womp womp what a joke. Future4200.
Rosin Buyers aren’t even worth having anymore. They’re too busy shopping instagram for a trapper going out of business and ready to ship his last resorts and not be paid. Selective customer bases are the only thing of value and this entire industry sucks at keeping their customers happy. I don’t see any of yall kissing each others dicks like you used to publicly. What changed? I’ll say it for you: The Price got so low, you can’t give it your personal touch anymore. Even your once upon a time… name brand hash, is just hash.
ANYWAYS. Melted D9thca isolate will always remain a higher purer choice over Distilled D9THC - With 10% or less impurities
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