SWIM has some questions:
1)
In final stage why freezing naphtha? I just let all naphtha evaporate is this wrong and why. I presume freezing is only to make crystals, and is just optional procedure am I correct?

2) Can spice be dissolved in acetone and put on piece of cotton, let acetone dry and put inside vaporizer.

3) I can not find exact information, boiling point of spice at atmospheric pressure.

1/ More economical and less wateful as Naptha can be reused, creates crystals and partially separates DMT from NMT.
2/ I see no good reason to use cotton however dissolving in acetone/ipa/ethanol is a method used to make changa or infused leaf, you evaporate the solvent onto the leaf
3/ will be somewhere try the wiki and basic chemistry section

1) Do You imply that NMT is soluble in naphtha better than DMT? Should I all dissolve in naphtha again, or live it as is?

2) I see no good way of putting it inside vaporiser , hmm

What temperature to se in vaporiser, it can be any from 25 to 200 °C

1. No NMT is less soluble in naptha, therefore gradually cooling the naptha after pulls will precipitate a certain amount of NMT first leaving the DMT in solution to precipitate at lower temperatures when it has been put in the freezer for a certain amount of time. The naptha is then decanted away from the NMT/oils etc to precipitate DMT as a more solid extract.
Evaporating it all away is also fine if you arent bothered about crystals it can produce anything from a brown goo to pale yellow crystals depending on the ratio of DMT:NMT:Oils in the solvent.
2. For smoking/vaping methods you should read the forum there is a great deal of information about this.

Is there difference in experience compared pure DMT, or DMT NMT mixture? NMT is active at high doses, much higher than DMT dose, so it should not matter.

I read many techniques but you claim I have never seen : About separating NMT to DMT this way.

SWIM used two separations in a row acid salt base naphtha pull, first was hot separation (using hot solution about 60-70 °C) second was cold separation, at 20 °C room remperature.

Is NMT soluble in naphtha at room temperature? If it is not than already NMT is separated ?!

how can SWIM be sure that powder ACRB is really root bark, if this would be AC seed which is poison?

Just wrote a long post explaining but my browser crapped out

Short version, using the solubility of each adjusts the ratio of nmt : dmt in the final extract and wont remove the nmt completely it just means there is more dmt in relation to nmt so it isnt technically a complete separation. NMT is soluble in naptha at room temperatures yes.
It makes it a more solid extract that some prefer because it looks better and or its easier to store and handle. Some prefer the faster onset when there is much more DMT to NMT. Extracts that contain higher ammounts of nmt in proportion to dmt is said to produce a gentler slower onset that lasts a bit longer.
There is a long thread by nen888 regarding the entheogenic value of NMT.

Your answers are very helpful, than you,

If two extractions are made in a row one at 50-70 °C and second at 20 °C can we presume that not much of NMT will be dissolved in naphtha at room temperature?

I would not like to open new thread for this question, please answer here:

Is there any chance when someone obtains ACRB powder to actually get "seed powder" which is toxic. It can be kind of "weird" working with fine powder which can be anything.

All in all if someone gets nice white crystals using extraction methond, is there any chance to get this kind of crystals from "seed powder", which can then be prove that indeed "powder" is really ACRB powder.?

Seeds are pretty dark in colour. I would imagine ground up they would be more of a dark purple or black powder in colour. ACRB or the inner root bark has a nice red rusty earthy color to it.

Ok, but I kond of doubt that this posion from seeds which type of "glutamine" can produce such crystals using this method.