I have read here some about cleaning DMT through recrystallisation. Can someone explain how to do this and what can be expected from this.

Recrystallization ================= The idea behind recrystallization is that solvents generally hold more solute when hot than cold and that the solubility of different solutes varies differently with temperature. If a solvent with a lot of different solutes dissolved in it cools down slowly, the different solutes will precipitate individually. Naptha will work for this but heptane is better. Heptane is available as Bestine -- a rubber cement remover. Place a glass container with the DMT and a glass container of the recrystallization solvent together in a pan of hot water. Shot glasses in a saucepan work well for a gram or two. The fumes from whatever solvent you use will be extremely flammable, so don't use a gas stove or light a bowl or be otherwise stupid. The DMT will already be melting if the water is hot enough. Add the hot solvent little by little (eye-dropper), agitating until all of the DMT is dissolved. Use as little solvent as possible. It should take only about 20-30ml of solvent per gram of powder. The solvent will be a clear yellow. Leave the pan of water with the DMT container to cool to room temperature. Remove the DMT container and cool in the refrigerator, then the freezer. You will end up with DMT crystals of varying purity atop a pellet of slag which still contains quite a bit of DMT but also lye if you skipped the ammonia wash. Filter the solvent and separate the crystals from the slag. The crystals can be refined in one or two more recrystallizations into pure clear DMT if desired. The slag can also be further refined or simply redissolved into the next batch. The solvent can be reused or evaporated down and the residue scraped and cleaned. And don't forget to scrub those jars and utensils with your favorite smoking herb!

Thanks, i give it a try.... Did you make that Way those beautiful Crystals you posted?

Yep. Well, my friend in Antarctica did. That was from two recrystalizations with heptane.

I tried the cleaning with Naphta and came out with mostly white Crystals, but now after they are dry, they are almost Yellow again. Have i done something wrong?

Naptha isn't as selective as heptane so one might have to do a couple of passes. Don't worry too much about color - if you get it to a crystaline form that's not oily, it should smoke clean. Remember to let it cool slowly. It should take a day to get from stove temp to freezer temp.

[quote:fac7eec5a5="Noman"]Naptha isn't as selective as heptane so one might have to do a couple of passes. Don't worry too much about color - if you get it to a crystaline form that's not oily, it should smoke clean. Remember to let it cool slowly. It should take a day to get from stove temp to freezer temp.[/quote:fac7eec5a5] I did 2 Extractions with the same Material, the first Time i used just about 80g Sodium Hydroxide and have got clear white Crystals but just 1.3g and the second Time i used about 500g Sodium and came out with about 4g but yellow. Both are OK to smoke, but when i saw your Crystals i though "Wow, thats how they should look like"

4 g using more Naoh ??? This is an interresting news. I will check if SWIK can extract more from his old batch adding some Naoh... SWIK said me he smoked some brown crystal and it was quite nice anyway, just a bit more harsh on the throat but nothing too hard. SWIK wonder if pure glass-like crystals are really worth the effort (and the loss of yield)... althought sure it looks good.

[quote:5844aba299="Chakra Vajra"]I did 2 Extractions with the same Material, the first Time i used just about 80g Sodium Hydroxide and have got clear white Crystals but just 1.3g and the second Time i used about 500g Sodium and came out with about 4g but yellow.[/quote:5844aba299] This was from how much bark? I too have seen yields increase tremendously once enough lye is added. That is the primary problem with the QT tek - she only basifies to 11.

500 g for each Extraction... What is QT?

[quote:82fac18bcb="Chakra Vajra"]500 g for each Extraction... What is QT?[/quote:82fac18bcb] Quantum Tetra's tek.