The tek I use results me with dmt-free yellow oily naptha. My question is about the re-use of that naptha. Does the oils left in the naptha effect the solubility of dmt or can I continue using this oily naptha as long as I strip the dmt from it?

I haven't noticed any issues re-using naptha. Some members say it works, some say it doesnt. I've never found letting naptha evaporate yields much, maybe it depends on how cold your freezer is, my naptha seems to get pretty clear and release pretty much everything after 24-30 hours.

I'd say try it, see if your yield is on target, you could always re-use it up until one last pull that you use fresh and if the yield comes back. Worst case it just wont saturate.

I don't freeze precip. I do STB then I take all the naptha used and acid wash it in hcl. Making dmt hcl in the water, leaving the naptha to be filled with oils and no dmt. I'm thinking I just reuse the nap and rerinse in the acid bath to build up the concentrations in the acid water. Once I'm done repulling with the naptha I could save for next batch or toss.(initially saving it for reason of possible error). But once I've got as much dmt as will go in the acid wash I was gonna rebasify it and pull with clean naptha to pull pure crystals. That's the method I use. Its kinda homegrown, but doing it this way seems to use wayyyy less naptha than other teks.

in any case you can clean your yellow naphtha when you like via the freeze precip method.by putting your dmt- free oily naphtha in the freezer you will change the polarity of the solvent even further and the oils will fall on the bottom of the flask.

just leave your yellow solvent in the freezer and you will find it clear next day.

oils, fats and other NP compounds affect the polarity of the naptha to a degree from what I've heard. I can't clearly explain how/to what degree, but know the fats/oils act as a NP solvent of a different polarity than the naptha. Combining them makes a binary solvent with different characteristics.

Since naptha is usually pretty selective at solubulizing dmt (why freeze-x works), and fats/oils more so than it, i can only imagine it would increase the effectiveness of the now binary solvent. Matters if your freeze-xing, but not if your salting imho. Think of it like how veggie/plant oils (sunflower/limonene) won't freeze precipitate dmt since its too soluble. Adding those kind of solvents to the naptha over time from pulls i'd imagine would only make it a more effective solvent.

I like the idea of salting/rebasing then freeze precipitating as well since it saves solvent. IMHO you should consider using a different solvent that is more effective than naptha at pulling dmt initially. I use limo, but other plant oils work too, like safflower/sunflower/etc which are more commonly available than limo. Or even add one of those oils to your naptha to make it better at pulling dmt (you could test this by freezing that binary solvent and seeing if dmt precipitates). If it doesn't that means the mix is better at pulling dmt than naptha alone.

To summarize, fats/oils from plants, whatever they may be, including the ones present in the plant you are extracting from, imho are better solvents for dmt than naptha and will only make the naptha a better solvent the more "yellow" (fat laden) it gets. Re-use should not decrease solubility, but rather increase it.

I see what you're saying. Since they're oils as well, they should help absorb dmt too. Hm.

And I use naptha cuz that's what I've always used. I don't like xylene because it eats my baster. Xylene also pulls jungle, and I don't want that. I could find heptane/hexane but I might as well just use naptha, its cheap and I already have naptha measurements.