I just posted a simple extraction (that can be taken to pure ibogaine HCl with recrystallizations or at least a very pure Total Active Alkaloid mix without recrystallizing), and panoramix (thanks for the measurements) has a good one as well.
I do know of a reliable place for iboga TA, bark, and I think HCl.
www.ibogaworld.com is affiliated with the person who gave me my first treatment, and I can vouch for her honesty. I don't believe she would stand behind a company that is less than honorable, but haven't ordered from them, because I am in the US. I flew to Amsterdam to have my first ibogaine treatment, and I took the TA. I have only had one other ibogaine experience and it was with a lighter dose of the acetic acid extraction, which was not very pure at all.
The extraction I posted can be easily done with vinegar and ammonia, and some distilled water to rinse, and will make a nearly 40-50% pure total active freebase alkaloid mix, but it has the further purification in detail, as well. The freebase is a solid, and fairly stable, if kept away from heat, light, air, moisture. To take it to further purity, by using acetone to dissolve the freebase alkaloids, the extra 50% or so of insoluble plant material left from the initial extraction is filtered out, giving a 95%+ pure total alkaloid mix.
The ibogaine/ibogaline/ibogamine HCl will precipitate out when adding the proper amount of hydrochloric acid. Once this is done, one should have 98% pure TA, however, there will still be some other active alkaloids left in that acetone. The ibogaine HCl can be recrystallized in boiling ethanol to make it more pure and remove some of the ibogamine/ibogaline, however these other alkaloids are also as active and noted by some to be longer acting than even ibogaine HCl.
The acetone containing any other alkaloids that did not precipitate with HCl acid can be evaporated, or distilled if you wanted to ensure no waste, then the unstable oil alkaloid mix could be dissolved in distilled water. Ammonia is again added to precipitate out the freebase. This would then be filtered out, rinsed with distilled water, left to dry, and would be your residual alkaloids in freebase form.
These could be kept for some later experimenting, or could be added in equal portion to the TA, making a Total Active Alkaloid mix, and the freebases in the mix would be easily dissolved by the HCl in one's stomach. Anyways, those are just a few ideas, depending on how pure you want your extract, or if you want the full alkaloid profile from the plant, minus all that wood!
Also, from all the studying I have done and after talking extensively with others experienced with the TA versus the HCl, as well as my own experience with the TA, I would recommend treating the added alkaloids in the same manner as pure ibogaine HCl. For instance, if one wants to take 15-20 mgs/kg of ibogaine, I would suggest treating this purified TA the same as the pure ibogaine HCl, and would not suggest adding more, because as stated, these alkaloids are as powerful and even a bit longer lasting than ibogaine HCl alone.
Many people can argue semantics about ibogaine HCl versus a PTA extract, however these are anecdotal opinions. From a medical or purely scientific standpoint, the pure ibogaine HCl would be necessary for a proper western medical procedure, so they can know precisely the dose of the pure drug is given. Now many psychonauts out there will argue that stripping a plant of it's other alkaloids, removes some of it's "spirit" and/or added actions/psychoactivity. From talking to a chemist who specifically took the residual alkaloids, alone, he reported similar, but much longer acting and seemingly more powerful effects.
Now again, this is anecdotal information, from my talks with the man who helped me perfect that extraction, so take it as you will. Grain of salt and all that. My major point being, though, if you do take a purified total alkaloid extract, like described in the tek I posted, please do not think that since only 70-80% of it is actual ibogaine HCl, that you need to take another 20% to be sure to get enough ibogaine on board, as those other alkaloids do have a definitely powerful and synergistic effect. (end rant)
Turning voacangine into ibogaine is apparently a pretty simple process, economically feasible, and sustainable, however it requires that one separates the voacangine from the other alkaloids in the voacanga bark. Trying the conversion of voacangine to ibogaine without separating the other alkaloids doesn't work. This may not be too difficult with a proper lab set up and some experience, but for the average home hobby chemist (or even worse, a drug addicted person just wanting a way to take ibogaine), it's probably going to prove more difficult and involved than many will desire to undertake. It does seem that this will be the way to have a sustainable supply, as the voacanga trees grow much faster, are much more abundant, and apparently much easier to grow, so it's the future of sustainable ibogaine for the masses, but it's not easy enough for everyone to start jumping on the bandwagon, just yet.
It is also possible to synthesize ibogaine, but requires very expensive lab equipment and very difficult, expensive procedures, so is not economically feasible, for a sustainable supply of reasonably priced ibogaine.