• Members of the previous forum can retrieve their temporary password here, (login and check your PM).

I'd like the remove the "yellow" šŸ¤”

L

lapilap

Rising Star
Hello there,

Is somebody aware of a method the isolate/separate the "yellow" substance from a dmt+ether solution ?

I tried different techniques but the yellow always ends up into the ether solution when I am about to put it in the freezer.

So essentially I am back to the good old "redissolve the DMT in ether using a hot water bath and pour the ether away without pouring the "yellow" at the bottom".

Any suggestions ?
 
For that you can best use Hexane. That will not pull the oils, and only grab the non-oily DMT-freebase.

First remove the ether from your solution (evap for example in a well ventilated area or outside?) then add the hexane to pull the DMT without the oils.


Kind regards,

The Traveler
 
OK thanks.

Sorry to bug again: what's the quantity required to dissolve the DMT ? For ether I use ~40ml/gram (data taken from the "DMT Handbook").

Ty. :)
 
lapilap said:
OK thanks.

Sorry to bug again: what's the quantity required to dissolve the DMT ? For ether I use ~40ml/gram (data taken from the "DMT Handbook").

Ty. :)
Click to expand...
Do you mean diethyl ether or petroleum ether? It's a very important difference - to the extent of it arguably being better not to use the term "petroleum ether" at allā€¦

Thing is, I don't recall the DMT handbook having mentioned using diethyl ether - or are you saying you've used ether alone for successful freeze precipitation, which I didn't think was possible.

Which DMT handbook were you looking at? The only mention of ether that I could find in the handbook was:
Diethyl ether as a binary solvent in combination with heptane also pulls full-range alkaloids. Using this combination the ether can be distilled off rather rapidly, leaving behind an alkaloid-saturated solution of heptane ready for immediate freeze precipitation. Note! Diethyl ether is extremely flammable. Exercise extreme caution!
Click to expand...
 
@Transform
Do you mean diethyl ether or petroleum ether?
Click to expand...
I have no idea - there is so many "names" floating around. What I am using (successfully) is called "Benzine mƩdicinale" ("Medicinal benzin" I guess) here in Switzerland where I buy it - I don't know what the chemical formula of it is.

The DMT handbook tek I'm using : The DMT Handbook - DMT-Nexus Wiki

Here they use the word "Shellite" for what I call "ether" (<- "Benzine mƩdicinale"). I don't use any other solvent (aside from water) and it does work for freeze precipitation.
 
lapilap said:
@Transform

I have no idea - there is so many "names" floating around. What I am using (successfully) is called "Benzine mƩdicinale" ("Medicinal benzin" I guess) here in Switzerland where I buy it - I don't know what the chemical formula of it is.

The DMT handbook tek I'm using : The DMT Handbook - DMT-Nexus Wiki

Here they use the word "Shellite" for what I call "ether" (<- "Benzine mƩdicinale"). I don't use any other solvent (aside from water) and it does work for freeze precipitation.
Click to expand...
OK - so, as I suspected, you're using light naphtha. This unfortunately has an absolute minefield of synonyms, "benzine" included (not to be confused with benzene).
"Ether" as a standalone word be taken to refer to diethyl ether - Ɖther diĆ©thylique.
lapilap said:
@Transform

I just checked and they also call it "Ɖther de pĆ©trole" where I buy it so I guess that is "pertroleum ether" I am using. ;-)
Click to expand...
Indeed ;)
 
Have a read of this:

IMPORTANT: spice color purity fallacy AKA is your dmt ok to smoke ?

I wanted to deal with an issue that commonly arises here. Often people ask 'is this spice ok to smoke', followed by some picture of some crystals or the description of the color of the spice. What I want to argue here is that spice color and how it looks is a very poor indicator of possible...
forum.dmt-nexus.me forum.dmt-nexus.me

Some DMT is simply a bit yellow.
 
@Transform

Some DMT is simply a bit yellow.
Click to expand...

I don't understand how this "chemically" makes sense.

The "DMT Handbook" tek says the yellow ~impurity is (quote) "mostly DMT-N-Oxide which is highly active! I recommend you enhance some leaf with it [...]".

I don't know what I am going to do with that "yellow" but I don't plan to throw it away. ;P
 
lapilap said:
@Transform



I don't understand how this "chemically" makes sense.

The "DMT Handbook" tek says the yellow ~impurity is (quote) "mostly DMT-N-Oxide which is highly active! I recommend you enhance some leaf with it [...]".

I don't know what I am going to do with that "yellow" but I don't plan to throw it away. ;P
Click to expand...

The DMT-N-oxide idea is, unfortunately, outdated and largely disproven. Keeping on top of this in the literature has taken a bit of a back seat but we're working on it.

DMT is polymorphic and also forms intensely-coloured polymers/oligomers. The current thinking is that a mini A/B cycle breaks up the yellow polymers. However, some people sometimes find yellow spice to be smoother. It mostly comes down to aesthetics, as long as the colour isn't from contamination with the base soup.
 
PS - any coloured substance gains its colour through electronic energy level transitions that absorb visible light of particular freqencies. Intermolecular interactions in the yellow polymorph and the oligomers allow for absorbance in the visible range, whereas the clear "white" form of DMT absorbs in the UV range and not the visible.

(and I'm omitting the complication of single-electron oxidation at the pyrrole ring.)
 
Transform said:
PS - any coloured substance gains its colour through electronic energy level transitions that absorb visible light of particular freqencies. Intermolecular interactions in the yellow polymorph and the oligomers allow for absorbance in the visible range, whereas the clear "white" form of DMT absorbs in the UV range and not the visible.

(and I'm omitting the complication of single-electron oxidation at the pyrrole ring.)
Click to expand...
you got more info on the pyrrole oxidation? Recently I had 2 samples of vacuum distilled substituted tryptamine stored same conditions yet one of them darkened up while other one stayed same.
 
famine said:
you got more info on the pyrrole oxidation? Recently I had 2 samples of vacuum distilled substituted tryptamine stored same conditions yet one of them darkened up while other one stayed same.
Click to expand...
Sadly, no. I'm just a parrot with a specialised dataset :p

Interesting phenomenon you've got there - maybe one of them had a chance impurity simply by dint of being different fractions/samples. When my bro was doing some obscure wet chem (inorg, ftr) they found that things could get messed up by trace gold atoms from the glassware so it could even be something as arcane as that for you.
 
famine said:
you got more info on the pyrrole oxidation? Recently I had 2 samples of vacuum distilled substituted tryptamine stored same conditions yet one of them darkened up while other one stayed same.
Click to expand...
Following this up after sleeping on it a bit, there was a recent bit of research reported on in this video:
What really jumped out at me was the line at the timestamp, "Even the inevitably present molecular noise is sufficient to trigger spontaneous stochasticity."

Given the reputation of tryptamines, I wouldn't be surprised if it came down to a random mis-packing of the sidechains in the dodgy batch. How tightly did you control the consistency of conditions between the two batches?

I'm mindful of a question in another recent thread where it was reported that lower (~40-42ā°C) temperature heptane led to a darker, more oily product and the higher temperature extract (70ā°C) was clear white. While this seems like a polymorph issue, I (firstly) can't vouch for the reliability of that anecdotal report and secondly must accept that it doesn't directly correspond to vacuum distillation. Nonetheless, is there a possibility that the troublesome batch was distilled more rapidly and vapour phase concentration contributed to amorphous aggregation in the receiving flask? Or a form of aggregation that was more vulnerable to this intermolecular electron transfer?

The other thing that springs to mind is that perhaps you got unlucky with a cosmic ray or a radioactive atom - a stray K atom on the surface of the glassware, for example.
 
Back
Top Bottom