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CBN Extraction?

BioBuddha

New member
Has anyone tried getting a high ratio of CBN oil? I have taken BHO absolute and just cooked it for a long time and was able to get 15% CBN. I am wanting to get closer to 20-25% CBN. Anyone try this? Any suggestions?
 

PDX Dopesmoker

Active member
I posted something similar a few months ago https://www.icmag.com/ic/showthread.php?threadid=325692
CBN is a fantastic product that should be exploited more than it currently it. When I worked in the weed store it became pretty obvious to me that a substantial portion of our clientele used cannabis for it's abilities as a sleep aid. In the past I've overcooked hash oil for usage in the same manner. Making CBN is pretty easy to do, but you have to destroy about 3g of THC to make 1g of CBN, so making it cost effectively might be another story.
 

G.O. Joe

Well-known member
Veteran

Unfortunately you assume something the graph does not show and are not alone on this. Another explanation - volatilization.

Making CBN is pretty easy to do, but you have to destroy about 3g of THC to make 1g of CBN, so making it cost effectively might be another story.

Dehydrogenation with sulfur should be higher yielding than that.
 

BioBuddha

New member
I posted something similar a few months ago https://www.icmag.com/ic/showthread.php?threadid=325692
CBN is a fantastic product that should be exploited more than it currently it. When I worked in the weed store it became pretty obvious to me that a substantial portion of our clientele used cannabis for it's abilities as a sleep aid. In the past I've overcooked hash oil for usage in the same manner. Making CBN is pretty easy to do, but you have to destroy about 3g of THC to make 1g of CBN, so making it cost effectively might be another story.


I've successfully made 15% CBN oil, I was just wanting advice on how to get a higher percentage. The oil I am making is 2% THC 15% CBN...how do I get more thc to degrade to CBN and not something else? I.dont think I can change the heat or time as we have done studies and CBN pretty much stops forming after two hours
 

PDX Dopesmoker

Active member
I've successfully made 15% CBN oil, I was just wanting advice on how to get a higher percentage. The oil I am making is 2% THC 15% CBN...how do I get more thc to degrade to CBN and not something else? I dont think I can change the heat or time as we have done studies and CBN pretty much stops forming after two hours

I'd listen to G.O. Joe's ideas before I'd listen to mine. He's a lot more sophisticated in these issues than I am.
That being said here is my opinion:
15% is already a lot, most people don't go around with significant CBN tolerances like they do with THC, so even a small amount of CBN can hit pretty hard (this is also my theory as to why people find THCV heavy material to be unusually potent). I've had flower that was measured 3% CBN and it was lights out stuff, a genuine sleeping drug, could have been called Mickey Finn Kush.
Doing the whole process with heat as the only catalyst seems to destroy a fair amount of the initial material. If you can do THCA->THC without losing 30% of the initial mass or if you can do THC->CBN without destroying 70% of what remains from the first conversion then you'll end up with more CBN at the end of the conversion. Converting THCA to THC will always eliminate the weight of the carboxylic acid, which is about 13% of the molecular weight of each THCA molecule, so the first process is already a lot more efficient that the second step. The molecular weight of CBN is only a 1.5% less that the molecular weight of THC. A 100% THC substance could be converted into 98% CBN if you could find different way of doing it.
Ask G.O. Joe for more suggestions and specifics on dehydrogenation, maybe he'll teach us some new tricks.
 

BioBuddha

New member
Unfortunately you assume something the graph does not show and are not alone on this. Another explanation - volatilization.



Dehydrogenation with sulfur should be higher yielding than that.


I appreciate any and all advice towards this process. Have you had any success making oils that test higher than 20% CBN? What advice can you give on achieving this?
 

G.O. Joe

Well-known member
Veteran
The advice is that of Adams and Mechoulam, who were not interested in production, sorry. They heated sulfur and THC (and isomers, acetates) to no more than 250C and distilled and so on. The weight of THC was like 4-5 times the sulfur. The gas product of the reaction stopped evolving in less than an hour.

This gas naturally it's hydrogen sulfide. You may already know it's about the most toxic gas behind CO, as far as actually killing people goes. It can be absorbed with NaOH or other bases.

The starting material can be CBD or a mix of THC and CBD which is then isomerized with tosic acid, then the product is dehydrogenated.
 

G.O. Joe

Well-known member
Veteran
Distillation may not be necessary though. All the excess sulfur if any should get washed out with a few aq. NaOH extractions, while THC and CBN would remain in an organic solvent layer that is mixed with it maybe while hot and stirring. Maybe just a little alcohol and NaOH reflux in the dehydrogenation pot followed by adding solvent and washing with water a few times. But it's likely that doing all this on most concentrates and in air will lead to some color that will need removing somehow. Sorry for only mentioning all this now and not before, I didn't see the earlier thread. (A clean, distilled concentrate to start with though would be a good idea, so you might as well get out the distillation kit. At a minimum I'd get rid of anything that can be removed by steam distillation first.)
 
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SkyHighLer

Got me a stone bad Mana
ICMag Donor
Veteran
^^ I have an patent application supporting my position of finding the original fucking dick, Joshua H. Wurzer. He spells out most everything but rosin, but I suppose that is covered in the general claim.
^ Pending, and Published (granted)
 
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^^ I have an patent application supporting my position of finding the original fucking dick, Joshua H. Wurzer. He spells out most everything but rosin, but I suppose that is covered in the general claim.
^ Pending, and Published (granted)

Rosin didn't exist when he filed this ..............
 

MWPierce

New member
Wondering if this thread is still of interest to others here ??
I remember seeing a post on a forum (could've even been fake-news), that decarboxylation of THCa and THC requires very stable conditions for the chemical synthesis to effectively take place, which means greater efficiency in the conversion for chemists and users.
Temperature during the process was mentioned to be a critical parameter to accurately control.
Just bringing up something to consider...would precise heating control at the proper temperature be something that could get closer to 20-25% CBN ??
 
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