Sublimation for purification of cbd derived delta 8

This question is twofold. What impurities are generated when refluxing cbd isolate with T5, and would sublimation be a reasonable method of purification? Or would the impurities co-subliminate (is that a word?) along with the cannabinoids. The goal here isn’t obtaining necessarily pure d8 vs the other cannabinoids, but rather removing potential toxic byproducts

as in short path molecular distillation the way @beaker played it?

unless the problematic molecule is also a cannabinoid, or distills at approximately the same temperature, then distillation should do a decent job on clean up.


I’m curious about this as well, from my understanding the weird by products of isomerstion should end up left in the boiling flask and in your cold trap.

Here’s a recent attempt at d8 with first pass cbd distillate and 5% T5.

There was some conversion to
cbn and cbc and not full conversion to d8.

Carbon refluxed for longer periods/higher heat seems to be the trick to get high conversion to only D8.

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I don’t seem to remember reading anywhere that a toxic byproduct would be formed from a reflux of t5 and cbd. Like @cyclopath said however, if there was a toxic byproduct that did not boil at a similar temp as cbd then a careful distillation or sublimation should in theory separate it quite well.
I’m actually in the process of making some cbd isolate as we speak. I’d be happy to use some to perform this experiment for the community using my sublimator. I myself am now curious what would result.


yeah exactly as @beaker was discussing


The whole point of sublimation of the results for me is to remove some of the question of weither or not toxic byproducts will result. I’m questioning if it would be safe to just neutralizing the ph and filtering then recovering solvent. The end goal is smallest scale practical without sacraficing safety of end product


Gotcha, that definitely makes more sense then using a sublimator to try and isolate large amounts of d8 derived from cbd lol I misunderstood a little bit, my apologies.
To try and answer your original question a little better, isolating the possible byproducts should definitely be possible via sublimator. However with that said, I don’t think the sublimator would be more effective at isolating impurities than a carefully performed short path distillation. You may find it easier to do this via spd since to recover the product from sublimation you have to disassemble the apparatus and collect the product from the bottom of the cold finger with a razor blade or similar instrument. Might be easier to use a small short path with a cow and several collection flasks so you can collect a few fractions without having to take anything apart and break vac. Just my .02. Hopefully that was a little more helpful to you

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I assumed it was a “parts on hand” thing :slight_smile:

I agree that if one were specifically selecting distillation gear for this trick, it would be considerably easier to collect (and test/ID) fractions with a more traditional SPD.

@beaker had one with a 50ml boiling flask, which I hope is now in @Roguelab ‘s possession.


nah its more a “cheapest way to do this” project. I have a 5l short path at the lab but id like to find something suitable for small scale at my house

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Depends on how you make the D8


Playa dust?!?

Does one have to worry about uranium?

Na, it’s organic.

i noted soooo many diffz depending on finish temps i saw see micro plateaus en route to… not 212 anymore
240… i stop at 240°f
i saw micro plateaus
impurities burnin off?
i don’t have a recovery system
i bet my house on this project
and now i help veterans
our forgotten heroes with their pain

it is an option
u don’t have to b high
or i can make u psychotic
sleep wake u choose
90lbs down n 6 mo
1yr self tapered 5 off opioid poison

allow me to b of service
regardless of whether u choose to speak to me

y do we chase targeting symptoms
I’m not here to get u high
i don’t like being hi
but as someone who took a grip of drugs and his family’s legacy as a child
who better for the gig
my topicals of trash last two days I’m told
vs clinic snake oil
if i wanted camphor
I’d buy it
know how i know I’m winning
do u c multi strain n clinics no
see finish temps of variety
on oils
it’s very diff and may b exploited
i can make one lsd psychotic
your mouth numb
your body so sensitive to touch
it feels like a 34hr whole body orgsm

i will share everything
I’d like to know what I’ve done
what’s been created

sublingual i dismissed
because as EVERYONE knows
one cannot maintain it under ones tongue with autonomically swallowing most of it

i predose capsules
u can’t sell it in syringes
a 2/10ml oops dose of taffy this clean we’re talkin 190s mg dose just there
it would freak people out
momz don’t trust me anymore and i took down the entire poolmanz family with single cookie bites
i leave edibles to edibles people
we thought we’d broken my lovely g
when at the 34th hr
she scared the family weinerdog with an erogenous response to a wrist licking in her ooohs n ahhhs

it ain’t right
but it can b ecploited
i know I’m winning
because they don’t sell it
they’re focused on individual terps

chasing individual symptoms with individual terps
because it’s profitable
if they’re all good for us
n combustion is questionable
y not throw everything in
every single phoenix teardrop
prolly 1000mg to 1l me just washin my gear
half ethanol 190un-d r iso
half coconut oil n lecithin powder emulsifier to solution just guesstimate

a scratch on a gel cap
nothing more
and that holds it n place
17-30min to effect
i don’t take a penny
I’ll lose my house if i don’t get a job
i don’t want to b paid for what i did yesterday
i wish to earn
by what i do tomorrow

all my notes n experiments ready to link

it’s alot

i wish to b a writer
i am a writer
i don’t need to b paid for my dream to come true
to do what i love
but it’d help
i refuse to profit from pain as was done to me

I’m sure i forgot plenty

i wish to show my intentions

I’m just going to take a dump

n the middle of the room
let’s innovate
tell me a story

and i will tell ewe mind

so allow me to begin
decarb everything nova
begin with everything neg60 below F
big mason jarz
multiple strain cocktails
18 is my record
dunno how many cured curing
i am aero as atomized as the wind
at least 11 cultivarz growin
many my own f1s
i have plenty to say about seed houses
strain mason supachilld
another strainer
buchnel 1.5 r 2
i always forget stuff
people say no terps in
cco /cannabiz oil
no more than 30min combined carrier solvent
preferably 20 shaking ONLY
every 5!
buchner funnel
solvent bp
212 f or less

if terp bp’s r so much higher than thc a
where did they go if people say
not n oil
checked sumblimtion temps
less easily found
found cbn
which is intriguing
because they say no terpz in kief but woohoo in bubble
where did they go
molecule under scope looks same
if anything
would not the cbn sublimate in common bubble makin chilled temps as opposed to oil

in 3000ish yrs
wouldn’t we have tried very few nuanced combos
if terps ain’t present as to oil
i dose in decigrams daily it is working

most of my coolest observations r by oops

i need help

i can do better

and y’all have the education i do not
will u speak with me

all of u on this thread

i try to link intel across our peer sitez
a decade of legit opioids made me kookoo
so I’m not right
i have a h.s. freshman’s understanding of chemistry
i know nobody as knowledgeable in the lab n cool with cannabis
as the people on this thread
and i have more to take
questions than answers

email freaks me

any fucking time
I’m talking about concentrated cannabis oil
rso diet $60day
where i have gone on mr Simpson’s coattails
pennies a day
circumventing the liver

i will share anything i know as to exponential entourage

will u help me

pain is an option

but i need help


u search sparechange cannabis

it’s me u will find

right on top

thank u all for what u already do for our peeps