Hi guys,
this might be common knowledge, i dont remember the teks step by step. I use powdered bark.
Anyway, after adding naphtha, i used to let the layers separate for 15 mins then pull. Ive found re-mixing the soul-ution 2-3 more times and allowed to re-separate each time over the course of an hour, 3 times back to back, gave me greater yields of the good, than my previous method of 2 15 min pulls separated by 5 hours, then letting sit over night for 2 more. (yes it makes sense if the bark is shredded to sit overnight).
It seems the next day i end up grabbing more oils than anything else.

Hope this helps someone

so when you add your naptha you shake then let seperate shake again specerate shake again and of course seperate then pull the naptha?

yeah xoanon Ive also been advising people to do that. Multiple cycles of mixing/letting stand before pulling the solvent is a good idea.

s14sliding, personally I preffer not shaking, rather stiring/mixing in round motions, to avoid emulsions (even though they can be broken up with more lye/salt, still I think better avoid them altogether)

emulsions as in the naptha getting stuck in between the solvant rather the seperating to top?

s14sliding, i dont doubt your knowledge, but the naptha is your solvent.

and to answer your question, yes an emulsion in this case would be the naptha(or solvent) not seperating to the top as to form its own layer. but rather be suspended inside the bark/water/lye mixture.

Naphtha :evil:

But if you're performing hot pulls wouldn't it be better to recover the solvent while it's still hot ?

Hmmm good question. I dont know. I also wonder if you just warm up the solvent, how effective it is, considering there probably is a very fast heat transfer to the acqueous layer.

I've tried to put the whole HDPE 5L plastic Jar (with organic phase + naphta) in a hot bath before pulling when I performed STBs but it usually was a nightmare to clean up, it might
be cleaner with an A/B though.

I heat the aqueous layer.

When you heat a pull, it's very important that you allow it to cool slowly so the crystals don't form around as many impurity's. With slow crystalization, it's possible to get white/glass crystals from even very yellow solvent.

Im new to all this so thanks for correcting me and answering the question

The idea behind heating is that DMT is more soluble in warm naptha then in colder (this is the idea behind freeze-precip as well, the temp drops and the naptha can not hold as much DMT, so it crystallizes)

I agree 100% with more stirring and sitting == higher yields. I mix the solution every 15-20 mins over a period of perhaps 2-3 hours on a heating plate, and usually only need 2 pulls to obtain a good measure of the alks.

i agree that warm naphtha will increase yield, but, IME it seems to grab more oils etc. Unheated gives me clear pulls, where heated gives me more yellow pulls.