Loveall wrote:Gibson, double filter is more robust to different xtal sizes. Depending on how the process goes, xtals can be smaller than what you got. For example, when using reused solvent the xtals can be smaller. Or if doing the fast xtalization, etc.
Seems like you are succeeding now, right? What do you think was your original issue? Is there something we can add to the current TEK to make it more robust/clear to others? Or is the TEK ok as is? Thanks!
Loveall, Feels like success, the crystals look good and clean, if small. I just did the pulls on 59gms of powder. I want to make large crystals this time.
Original issues? First run, sloppiness, didn't have graduates for volume, my pocket scale only had two digits past the decimal point, was 20 years old and a little sticky. But worst was my idea that excess EA didn't really matter, so I used too much and the extract was too dilute.
Then I needed to learn how to decant on my 2-4 runs. Maybe a mason jar would be easiest. I have a few. A beaker wasn't great because there's no incline to keep the water globule more isolated, I'm using a large flask now, and that's better. I have to really focus while I'm doing it because up close the boundaries are a little distorted through the glass. Can't see it that well far away. I think I'm keeping all the water behind, but losing a few ml of extract.
I never really had a problem with goo.
I'm hoping the powder I'm using is weak is why my yields are pretty low.
One kind of consistent thing I'm seeing is congealing of the paste on the last few pulls if I use the TEK amount of water. The last run you saw in the pictures above was the first that didn't congeal at all. It remained workable and drained well through the last pull.
It had the 100gm equivalent of 202ml vs 270ml starting in the TEK.
I'm draining the last pull through the filter of my current 59gm run. It did start to congeal during the final mixing step of the last pull. It didn't want to drain well, so I left the paste on the filter funnel for 15 minutes and it did drain completely, surface is light and airy and I recovered 455ml of dark green EA from a total of 558ml used.
It was prepared with a 100gm equivalent of 236ml water vs the 270ml in the TEK.
I made a feeble attempt to dry the powder before preparing paste this time. 40 gm of powder, in a 1.5cm layer, placed in a convection oven at 150 F for 30 minutes resulted in a .5 gm loss. I couldn't make much of a conclusion from that and didn't want to dry it all overnight, so I made paste with a little more water than the previous run, but it still was a little too wet with 12.5% less water than the TEK. The consistency after working the paste was getting to be like modeling clay.
I prepared the powder for my first two runs, cut up the cactus and dried it out overnight. Cracker crispy. But those runs also congealed early with the TEK amount. Probably all the powder I used is moister than what you use, so I'll adjust accordingly.
I hope to get large crystals from this run. It's in a flask in the fridge now till tomorrow evening, then I'll decant and filter. I'll grind my citric acid fine. Can I add it without any stirring? Merkin felt it's important to add while the EA is still cold for faster crystals.
Last run I needed 2.25 gm Citric acid, and I checked the pH right after one gram and it was already showing slightly acid. I added the rest anyway.
Is the Citric acid amount needed determined by the amount of lime or mescaline or both? Is it lowering the pH and reacting with the mescaline? Reacting with the lime at all?
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