Question for veterans of this tek, particularly wrt to the minimum polymer discussion (which i see as another iteration of Max Ion), here:
https://www.dmt-nexus.me...aspx?g=posts&t=97103When collecting the pulls, Max Ion says to let first pull cool to room temp, then move to fridge and store there until all pulls have been collected. Since 6 pulls could take several hours, wouldn’t it be useful to keep the pulls at room temp or warmer until all pulls have been collected?
As I understand crystallization, the extraction solution is collected with above ambient heat to get closer to ‘super-saturation’ then cooled below ambient to reduce solubility, which aids crystallization. Is there any foreseeable problem delaying the slow cooling (to minimize polymerization, to avoid goo) and subsequent ‘super cooling’ (to force crystallization), until after all pulls have been collected?
Guess i’ll find out.
Here’s the first plan:
- Follow tek through basing
- Follow ronsonol dosing
- Store pulls, while collecting, in sous vide controlled 50c water bath
- No solvent evaporation
- Cool combined pulls to ambient
- Cool further till stable temp in fridge
- Finish in freezer per tek.
Later 2/28: Started earlier w 50g mhrb powder and a 1 qt mason jar. After 3 freeze/thaw cycles, and a 19hr acid soak, I salinated and based per the tek. Heated ronsonol using jar-in-sieve setup in boiling water; cooled acid-powder to ambient; did six 50mL pulls, with four 20-sec bicycle peddle shakes over 45 mins per pull (heated solvent seemed a waste of time, given the volume differences, next time just gonna leave jar in 50C bath; 4 pulls in 45 minutes doesn’t fully clear after each shake, so I switched to three 6-7 minute rests then a long final rest for max solvent recovery per pull, still only recovered 230 of 300mL added). After each pull, pulled solvent was combined in a jar warming at 50C. No evaporation step. After all pulls, the crystal clear, but ever so slightly yellow-tinged solution was emptied into 9”x9” pyrex baking dish & covered w plastic wrap and then tin foil, allowed to reach ambient temp (~1hr), then put in 38F fridge (~1.5hrs). Moved to freezer and will leave in for 12-18 hrs. Update sometime tomorrow.
3/1: I let it crystallize for 24hrs; pics at 12, 18, 24 hrs are crappy, but clear enough to see not much change over those periods. Very white and sparkly results, a couple small patches of yellow oil (see “Dried” pic) which I attribute to contamination (imo: the slight yellow tinge mentioned above reaggregated, from a couple of miniscule drops of the black-red-yellow tar that had dissolved/dispersed in the pulled solvent). Notice this contamination in the “Scraped” pic.
Yield only 1%. My excuses: 1st DMT run ever/learning curve; not sure what typical yield is from the powder I have; fresh/unloaded solvent; perhaps the changes to tek reduced yield.
My focus with this run was to maximize white crystal quality, which I did for the most part. Future runs will work on completely eliminating contamination, using a better-suited container and better solvent removal. I’ll also focus on improving yields, and testing some ideas I have to improve the maceration, acidification, salination, and pulling processes.
This is a great tek, CYB; which along with ideas generated in Loveall et al’s Minimum Polymer thread/tek can improve crystallization quality and consistency. I hope we can also find ways to reduce elapsed time considerably.
Thanks All!
3/4: Next iteration (#2) of adjustments to Max Ion is crystallizing now (50g of MHRB powder from same batch). This run is focused on reducing the roughly 5-6hr pull process in Max Ion to 1 hour, based on Loveall’s “Pull” steps, here:
https://wiki.dmt-nexus.m...one_with_IPA_and_Naphtha (4 x 10 min pulls w 65mL/pull heated ronsonol).
I didn’t change the order of the NaOH addition from Max Ion (same timing as NaCl addition; 19 hr, 50C bath), but i am using a 1L Erlenmeyer flask this time (which eliminated visible tar contamination during pulls, and allowed for 93% solvent recovery), so, due to the extra container volume, I added 5g more NaOH to hit pH 12 when additional water was added to get pre-solvent surface to bottom of flask neck.
Additionally, citric acid was substituted for vinegar. As pH of the powder-water solution was already 4.3, the 0.5g citrate, dissolved in approx 20mL water, dropped pH of the solution to 3.7 (obviously very little buffering in the powder-water solution).
About to do pulls on a third iteration of Max Ion, will describe changes in 3rd iteration after results from 2nd iteration are posted.
3/6 am: Decanted solvent from my 2nd iteration of Max Ion last night, after 24hrs of freezer time. Total yield 0.8%, roughly 20% less than the previous full-on Max Ion recipe. It’s looking like my batch of powder won’t be able to produce the 2-3g yields that some report with Max Ion. I again used fresh solvent, so the reported yield is likely understated.
Quality was improved (due to narrow neck container, careful syringe decanting), no visible yellow aggregations in the crystalized product; but still a barely visible oily film on the dish surface, that, when scraped, accumulates small amounts of a yellow goo. The dry, brilliant white crystals (see attched pic) can mostly be removed without scraping the surface; so it is possible to carefully separate the visibly pure crystals from the “contaminated” crystal-oil component, then re-crystallization of the yellow-tainted product.
At first glance, the yield is disappointing vs the full-on Max Ion recipe. But, considering that the 6 decants in Max Ion each have 4 separate shake-clear cycles in 5-6 hrs of working time (24 total shake-clear cycles; where the separation of the product occurs), and Loveall’s 4 decants each have only one shake-clear cycle in 1 hr of working time, it appears that Loveall's method is much more efficient, likely capable of equalling Max Ion yields with major savings of working and elapsed time, by adding additional pulls. Btw, recall that Loveall’s pulls use 30% more solvent than Max Ion, so they can potentially hold a bigger product load; and though it may just be related to change in container shape between my runs, Loveall’s method clears in 3-4 minutes, so shake-clearing cycles could be easily doubled without extending the 1 hour working time.
Separately, I have a 3rd iteration crystallizing atm. This one again uses 50g powder from the same batch, and fresh solvent. It follows the same process as the previous, 2nd, iteration; but substitutes 50g KCl for the NaCl, and reduces the salination-acidification step to a 1-hr duration. See attached pic for water vs loaded solvent comparison.
3/6 pm: Decanted solvent from my 3rd iteration of Max Ion, after 24hrs of freezer time. Total yield 0.7%, roughly 12% less than the previous, 2nd, iteration. I again used fresh solvent, so the reported yield is likely understated.
Quality was consistent with previous iteration, no visible yellow aggregations in the crystalized product; but still a barely visible oily film on the dish surface, that, when scraped, accumulates small amounts of a yellow goo. The dry, brilliant white crystals can mostly be removed without scraping the surface (notice the scraped and unscraped areas surrounding the white crystals in the “Scraped” pic below).
The yield reduction versus the previous run indicates that a longer acidification-salination period and/or perhaps higher KCL level would be needed to reach/exceed iteration 2’s yield.
The next Iteration (#4) will use the Max Ion freeze-thaw through basing steps, substituting citric acid for vinegar, and KCl for NaOH; and using Loveall’s 4 x 10 minute, 65mL pulls, substituting 2 shake-clear cycles per pull vs Loveall’s single cycle per pull. The goal is to meet/exceed Max Ion yield while significanyly reducing pull times (which is most of the ‘working’ time commitment in this tek).
When this goal is achieved, I’ll replicate the process, and cut freezer time in half, to see yield effect of 12 vs 24 hour crystallization periods. Afterwards, I’ll start work on reducing the nearly 2 day maceration time. I’d like to get the entire process, purple powder to white crystals, down to less than one day of elapsed time.
3/7: Iteration #4 has started; 50g MHRB powder from same batch, in 300mL water, is beginning 2nd of 3 freeze-thaw cycles in a 24 hour period.
3/8: Iteration #4 defrosted and transferred to a 1000mL narrow-neck erlenmeyer flask, topped up with water to ~900mL, then acidified with citric acid and salinated w KCl, in 50c bath. Pre-adjustment pH started around 4.5, After dissolving 1g citrate in 20mL water & stirring in, pH decreased to 3.5. 90g KCl (molar equiv of 70g NaCl) dissolved in 50mL of the mhrb solution and then added back to flask, raising pH above 5 pH. Took another 50mL pull from the mhrb solution and dissolved 2g additional citrate and added, taking pH back to 3.5. Will let it bathe at 50C for 19 hrs, then base with NaOH.
3/9: After 19 hrs, basified with 45g NaOH (pH ~12.5), and let flask continue to bathe for 2 more hours @ 50C. Heated up to 50C 4 x 65mL portions of fresh ronsonol, for 4 pulls. Each pull consisted of 4 bicycle shake-clear cycles, lasting about 15 minutes, total pull time 65minutes. Pulls were collected in a jar and allowed to cool to ambient (~71-72F), then placed in a fridge to chill for an hour, then poured into a pyrex baking pan and covered with plastic wrap and placed in a freezer to crystallize.
3/11: Cold Filtered, dried, and scraped after 24-hrs in freezer, 1.1% yield (0.135g in coffee filter, 0.410g in pan). Looks like Iteration #4 (Loveall’s improvements) at least matches the original Max Ion, AND SAVES 4-5 HOURS OF HANDS-ON TIME.
Will start working on reducing pre-basing time.
Thanks Cyb & Loveall.
Cheelin attached the following image(s):
12 Hours.jpg
(61kb) downloaded 585 time(s). 18 Hours.jpg
(74kb) downloaded 584 time(s). 24 Hours.jpg
(86kb) downloaded 579 time(s). Dried.jpg
(173kb) downloaded 579 time(s). Scraped.jpg
(115kb) downloaded 578 time(s). 2nd Iteration.jpg
(87kb) downloaded 487 time(s). Water vs Loaded Solvent.jpg
(36kb) downloaded 486 time(s). Plate - 3rd Run.jpg
(125kb) downloaded 470 time(s). Scraped - 3rd Run.jpg
(98kb) downloaded 469 time(s). Iteration #4.jpg
(136kb) downloaded 422 time(s).