So SWIM finished his first DMT preparation the other day with Marsofold's Tek, and he has a few questions about purity and maximizing yield. He got a total of about 1.5 grams or so from 1 pound of MHRB. SWIM has a good amount of knowledge about chemistry and chemical lab techniques.

First off, when SWIM evaporated the naphtha before freeze precipitation (the version he was looking at recommended extracting with 500 mL of naphtha and evaporating down to 50 mL before freeze precipitation) he found that a lot of crystals formed on the sides of the measuring cup he was evaporating in before he ever froze it, about a gram or so, so he separated these crystals out before freezing the naphtha, and got about 500 mg from the freeze precipitation. He said the crystals from both looked about the same to him, and both were pretty white. Will the crystals produced by the evaporation be pure, or do you think he needs to redissolve them in naphtha and freeze precipitate them? If these crystals are fine, why can't SWIM simply evaporate ALL the naphtha to get the crystals?

Second, would it be a good idea for SWIM to save the naphtha from the freeze precipitation, and mix it with the extractions from SWIM's next preparation in order to make sure he got all the DMT from it? SWIM was worried that all the impurities would be concentrated in this naphtha, and mixing it with the next preparation would double the impurities and potentially cause problems.

Is the ~1.5 g from the first pull only? Keep pulling, preferably with everything warm, ~5 pulls or until nothing comes out. MHRB should easily yield ~2%.
Where did the bark come from? What pH is the basic soup at?
In my friend's opinion, no need to reduce by evap, just combine pulls and freeze as cold as possible for 24+ hours, then decant. Yes, save and re-use the naphtha! This is the beauty of freezing vs. evap.
Impurities are not a great concern, re-X is fun and easy, and canary spice is fine to journey with.
Best,
L

SWIM wants to thank you for the advice. He will keep pulling (the 1.5 g was from 1 pull), and will re-use the naphtha. The bark came from gaiasnaval.ecrater.com, and the basic soup looked a little bit above pH 13 according to the pH paper.

Great! SWIY is on the way - also, no problem to combine pulls and freeze all together - this may be simpler than separating the dmt every pull.
L

by combining pulls and freezing all together, you do not know if your last pulls yeilded anything at all, and you may be making your freeze precip'd naptha less saturated with the good stuff by throwing that last pull in, OR a worse case scenario, your last pulls may have had a large yeild, and there could still be lots of spice left in your root bark mixture.

hope that can help with future pulls, to get all the good stuff out
cheers

First... beautiful python!
And re pulls, sure, just a different approach... to OP - SWIY may not want to throw the mix out right away - some have had a windfall pull from supposedly spent bark mix. Also, pulling with a wider spectrum NP solvent (xylene) and salting or evap is an option - but xylene is STINKY and doesn't freeze precip... if SWIY pulled 2% + with naphtha, maybe prompt disposal is more suitable, depending...
Be cool...
L

i did marsofold tek with 1 lb mimosa and filled a crockpot with half of the vinegar/water mixture as outlined in the first step. It seemed fine at first but the mixture turned out to be like pudding it was so thick. Is this normal? I had to pour out half of it into a pan and put more water in so it wasnt so thick

yeah,it's normal..put the pudding outside and let it cool..than you could let the vinegar extract drain off and squeeze the pudding...last time swim did 400g of bark doing 4 boils of about an hour each,using 2:1:1:1 ratio,he had a very fluffy and white product with almost no smell.very nice stuff.