Thank you for your reply. I’ve been getting into this rabbithole for quite a while, and I find I don’t have enough resources for most of that. I’ve read a lot of conflicting stuff online. (There was a page about doing it with EtOH/HCl and petroleum ether/para-toluol… but there was a calculating error in the EtOH one, so I can’t trust the info on the other method )
I have some equipment, but I don’t have a reflux device, for example. I’ll do a very, very crude test with very little CBD in a 15 ml Falcon tomorrow. I have some Falcons, a scale, some pasteur pipettes etc. left from my lab days. I will get some petroleum ether etc. resistant bottles and measuring stuff from a lab shop The reflux thing I’ll just try to wing (for the bigger amounts I would use a kitchen double boiler with a turned-over glass lid, either with or without a ventilation hole - I’d need to find out how much gas wants to get out and depending on that, either the hole or leaving some space for the gas; put ice on the other side of the lid so the solvent can drop back into the mix… oh well!)
If it proves to not be feasible with what I have and can get to know and get, I’ll just settle with vaping the rest of the CBD after some failed attempts and leave it at that.
I know this works in theory… I couldn’t eat for years, so when I drank a sort of Green CBD dragon it sometimes would get me high by way of my stomach acid, lol!
reading up on some stuff right now. I’m also sorry for unintentionally flagging some of your comments! I though I was saving the comments. Can I undo this myself?
Edit: Thanks Admin, sorry for being so stupid…
Oh well. I don’t know yet; this was a test-run with a tiny, tiny amount, a lot of loss in the process and it was CBD in only 70% isopropanol with 1M HCL. (Just what I had on hand really). Solution had a pH of ~1 in the end, ended up using loads of sodium hydrogen carbonate to neutralize. Terrble fallout formed, I suppose it was NaCl. Great losses dividing them again, haha! Now those poor, tiny 100 micrograms of CDB I started with might be enough for one dose maybe. Haven’t tried yet, evaporating the solvent over night. Learned a lot today :D. Will report tomorrow.
@SuperCat: Really appreciate the infos! If you don’t mind or anyone else would be ok to answer my new questions… Next plan is:
This is based mostly on the Hemp Husbandry isomerization bit.
Dissolve 3 g CBD in 200ml (just an educated guess) petroleum ether with 200mg para-toluolsulfonic acidx1H2O.
Reflux for 2 hours. I made up a new plan: I’ve bought a 500 ml Schott bottle. I’d put it in a pot with water, sitting on an oven cloth so it’s not in direct contact with the heated metal. Screw on the lid the tiniest bit so that gas can evaporate (like for autoclaving) or just lay it on top of the bottle. Put an icepack in the lid. Regulate temperature to be the boiling point of the petrol. ether.
After ~ 1 hour, do that 5%KOH in EtOH test with a bit of the solution, keep on going till the test comes out clear.
Wash solution with 5% sodium bicarbonate (half the volume of my solution). I only have sodium hydrogen carbonate and am not sure which concentration to use. So I’d wash with 10% NaOH as suggested in the chemistry lab manual instead. Petroleum ether isn’t miscible with water as far as I know? Just making sure. Also, too much NaOH would be washed out in the next washing step with pure a.dest., I suppose? Would you guys just shake it up for a minute or something? After that, put lid loosely on the bottle.
I can’t afford a separation funnel right now, but I could also suck the upper layer out with a syringe or a 10ml pasteur pipette and transfer it to a new vessel.
-Let the solvent evaporate, do stuff with the THC.
Or something like that…
(Edit: corrected some illogical nonsense.)
That’s a good hack, thank you; I actually have some of those lying around. As I’ll use petroleum ether, I wouldn’t count on them not being eaten, though. But I’ve done that thing a lot (just not for this purpose), so I’m sure it will work in a lab glass botte. I have a 50ml perfusion syringe made of PP which will come in handy. That’s like 3 professional items already, lol. Both methods have their advantages! The original contraption would be the real deal, but god, that alone costs a fortune to me.
That I could actually wing with my stuff. My biggest and most expensive problem is this reflux apparatus guy; hence the coffeemachine for outside to make it safer.
Just in to report twisti the bot was pretty high a couple of hours ago.
So to the rest of you: it worked! For the lot of improversation I had a pretty good result. Can definitely be improved. I used p-TSA in petroleum ether.
Thank you! Sadly, the isopropanol with HCl didn’t really work, but I used only 100 mg in an CBD-E-Liquid. Maybe I could have imagined it to work a little. But the “ideal” isomerization rate of 60% (compared to petroleum ether/-tsa 90%) wasn’t great to begin with. What a shame, I actually “simmered” it for about 14 hours…