DCM is easily obtainable over here so i thought i would try it in my next extraction. i would like some members feedback and experience on which would be the best tek for using DCM please.

Thank you.

Maybe this will help?

https://www.dmt-nexus.me....aspx?g=posts&t=6252

in a word,no this will not help

I know it can be used i am asking for pointers on which tek to use. i have used the search function and i can not find any definitive info on teks that have been used, amount of solvent for each pull or number of pulls.

Thank you for the reply though as i had not seen that particular thread on DCM qualities.

Any A/B should work well with DCM. I've used it in Q21Q21 and wet teks with good results. Just keep in mind that it pulls a broader spectrum than hexane or heptane (so you might need a re-x with those if you fancy crystals) and that you cannot use freeze precipitation.

Also, as mentioned in the thread shared by wearepeople, you should not use it for defat - particularly when using vinegar as acid. But it works nicely for pulling, in smaller amounts than naphtha solvents. The pungent smell of DCM extracted goo using Q21Q21 is my favorite extraction scent ever.

Edit: I forgot to mention... Only drawback for me so far is that phase separation in wet teks is sometimes slower or not so clean cut due to formation of bubbles, most specially with sodium carbonate as base.

Thank you for the reply Vodsel. If i may i have a few specific questions?

Is a defat necessary when working with DCM?

I will be using HCl for the acid is this OK?

How much DCM is used per pull say on 100g of MHRB and how many?

Is the goo extracted by the DCM good to use as is or is a clean up required? (I have Heptane.)

Thank you once again for the information.

There's no actual need for a defat, at least not with MH. The yield, once the solvent is fully evaporated, can be used as is - of course as long as it has no contaminants from the extraction process itself, in which case you should do the customary clean up. Makes more sense to me to re-X afterwards if you want to purify the result and remove plant oils and other impurities.



You can acidify with HCl, you simply may need more handling precautions. Some people claim it will deliver slightly larger yields (specially if your bark is not well powdered) and others say there's no difference between HCl and the usual white vinegar. I haven't used it.



You can use less DCM than the amount of naphtha specified in the teks, and there's no need of warming up the solvent. I have no solubility data here, so I'm not sure about the amount of DCM required compared to naphtha solvents... maybe someone can precise that. I know I've used less than half the noted naphtha volume, and even that was probably too much.

As for the number of pulls, looks like less are required. I did not get any significant yield in the third DCM pull.

A good option is using it after a few good hexane/heptane pulls. This way you get nice clean crystals in the first two or three, and then you do another pull or two with DCM to gather all there's left in the mix.

Thank you very much for the detailed answer. I am giving this a go in the next couple of weeks and i will post some pics and results. I will be extracting with DCM first and then cleaning with Heptane. I am interested to see what this DCM pulls and also what its affects/effects are

Thank you once again Vodsel.

THANK YOU all for your comments. I see there is no general consensus but a great variety of methods and preferences based on personal values: cost, odors, toxicity, etc.

My thinking is now also going the direction of Endlessness: STB--> D limo + FASW. I only need fumarates and this path is fast (2 hours), easy, safe as to vapors and to ingestion, smells good, and the D Limo is reusable after a wash so inexpensive. I only use orally and so no Re-X is necessary.

Notes: STB instead of AB because Cybs AB did not give me a better yield than STB and not necessary defat with MHRB. FASW instead of FASI o FASA because you don't need to titrate and no evap of chems: just dump the FASW in and evaporate the H2O. Wash with acetone to remove excess fuma acid.

The following information comes from 69ron @
https://www.dmt-nexus.me....aspx?g=posts&t=1574

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List of alkaloids: (found in Cebil and Yopo)
As you can see, most of the alkaloids have an XlogP of 1.7 or lower.

0.1 - 6-methoxy-2-methyl-beta-Carboline
0.7 - Beta-carboline, 6-methoxy-1,2-dimethyl-1,2-Dimethyl-2H-beta-carbolin-6-yl methyl ether
1.0 - 5-HO-Tryptamine (serotonin)
1.3 - 5-HO-DMT N-oxide (Bufotenine N-oxide)
1.6 - 5-HO-DMT (bufotenine)
1.7 - N-Methylserotonin
1.7 - DMT N-oxide (Dimethyltryptamine N-oxide)
1.7 - 5-MeO-NMT (5-Methoxy-N-methyltryptamine)
1.7 - 2-Methyl-1,2,3,4-tetrahydro-beta-carboline
——————————————————————---------------------------
Line = Solubility limit of naptha and heptane
1.8 - NMT (N-Methyltryptamine)
1.9 - 5-MeO-DMT (methoxybufotenin)
2.0 - DMT (Dimethyltryptamine)

NMT, 5-MeO-DMT, and DMT are the only alkaloids that can be extracted with naphtha or heptane. The rest need more polar solvents.

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Here are some XlogP’s of various common SOLVENTS:

MORE POLAR / H2O SOLUBLE
-0.7 - DMSO
-0.5 - Methanol
-0.1 - Ethyl Alcohol
0.2 - Acetone
0.4 - IPA
0.4 - MEK (Methyl Ethyl Ketone)
0.7 - Ethyl Acetate
0.9 - Ethyl Ether
1.5 - DCM
2.1 - Chloroform
2.5 - Toluene
2.5 - Xylene
3.7 - Limonene
4.3 - Heptane (similar to naphtha)
4.6 - Naptha
LESS POLAR / MORE NON-POLAR


As the solvent gets more non-polar (lower on the list) it extracts less and less alkaloids.
You see how the solvents ethyl ether, DCM and chloroform are in bold? These are the non-polar solvents that will best extract all the alkaloids.
Toluene and xylene, will only usually extract alkaloids with an XlogP of about 1.7 or higher.
Heptane/naphtha will only extract the highly non-polar alkaloids with an XlogP of about 1.8 or higher (5-MeO-DMT, DMT, and NMT).
XlogP calculations are never completely accurate and there are always exceptions to these solubility guides.

DCM can be used but as mentioned, but it's a wide spectrum solvent and I think it can pull some DMT salts from water (it's a little bit polar).

There are problems with excess vapour and precipitation has to be aided with other solvents.

Finally, it reacts with DMT to a small extent.

Full discussion here

I tried DCM in the past but now the only way I would use it is to just extract everything, strip off DCM with a rotary evaporator and the re-extract with smaller amount of nonpolar solvent.