a normal A/B extraction (or even STB) can yield fairly pure DMT freebase and it is certainly not very complicated to do. yeah it takes more time than a crude extraction, but it is certainly doable.
here is how I did it:
1) I weighed out ~200g of MHRB and ground it as finely as possible in a coffee grinder. be aware that this stuff is very very dusty after grinding, so handle it very carfully and maybe wear a dust mask.
2) acidify to pH 3 about 1.5 - 2 litres of water (I used tap water, but mine comes from a mountain spring, so if your water quality is bad, use distilled) with a suitable acid. I used acetic acid, but hydrochloric acid will also work. add a drop at a time and check the pH with a indicator paper, which can be bought for little money. it really doesn't take much, just a couple drops with concentrated acetic acid.
2) put your ground MHRB into a pot, cover it with 1/3 of the acidic water and let it simmer for 1-2 hours in a well ventilated room, stir regularly. strain this through a piece of cloth (you want as little fibres in your extract as possible. collect the extract in a glass jar or similar.
take the MHRB out of the cloth, put it back into the pot and use another third of your water, and repeat. extracting like this 3 times will remove most of the alkaloids from the plant matter.
3) after your third extraction, unify all the extracts, clean your pot, fill in your aqueous solution containing your DMT acetate and reduce this to one third of the volume on low temp. can take a while depending on how much it boils. after this, fill it into a glass jar and let it cool down. it will appear as a brown sluggish liquid.
4) when your extract is cool, put on
safety goggles, get your sodium hydroxide (NaOH, caustic soda) and start to basify. only add one pellet at a time and stir continuously. basifying a solution is
exothermic, so adding too much at once can bring the water to boil spontaneously, which can make it spit all over you, and you don't want anything highly basic in your face or anywhere.
well what happens is that when you keep adding the base, your solution will start to get thicker and white stuff will fall out. if you keep adding NaOH, it will eventually turn black and everything will go back into solution. at this point, it should be pH 13-14. now the DMT should be completely deprotonated, which means it is the
free base.
4) now you need some device to seperate two layers of liquid, which are not miscible. many people use turkey basters or just siphon off the top layer, there are many ways to do it, so you should check out which looks best for you. I personally just bought a seperatory funnel, which is a handy lab device made of glass, designated to perform exactly this task. it is certainly worth the spending, because you can seperate the layers very precisely.
fill your basic DMT solution into the jar/funnel/whatever you're using, and add ~150ml of your nonpolar solvent (hexane, petroleum ether, naphtha, D-limonene, to name a few) and mix it with your basic solution. don't shake too hard, or it might emulsify if you're unlucky. after a couple minutes of mixing, let it sit, and the two layers should seperate again.
what happens here is that the DMT freebase is vastly more soluble in the nonpolar solvent than in the aqueous phase, so it will happily migrate into the solvent. seperate the layers, collect the organic layer (normally the top layer, unless you use something like CHCl3) in another clean jar, and repeat this 2 more times as well (similar to the inital extraction before).
unify the organic extracts, discard the basic solution (beware, maybe neutralize it before flushing it down the sink, it might damage your pipes). reduce the volume of the organic extract as much as possible (I used a hot water bath directly in front of the window, just make sure that the fumes actually go outside, and don't get pulled into the room. the more you reduce, the easier DMT will crystalize out of the solution later.
after reducing is finished, let it cool to room temp, close the jar and put it into the freezer. at freezing temperatures, DMT will become very poorly soluble, and crystalize. let it sit in the freezer for 2 days or so, and then filter it out with a filter paper. be very quickly, if the the solvent gets warm again, some DMT will redissolve. let your crystals dry on air for couple of hours.
5) enjoy your homemade DMT freebase.
PS: don't use this post as a tek to soley rely on. research the topic more, read lot of teks and reports, and then do it based on your own knowledge instead of using a strict recipe. I can't and won't take responsibility for any problems or wrongdoings
PPS: if you really can't comprehend this, you should question your quest of extracting DMT, no offense to anybody, but you will have to deal with strong bases and flamable solvents, so a basic understanding of the matter is absolutely important!