Looks good deadhor5...

You can always add a little more salt and water if necessary...depends on your EV and how easy it is to reach the NPS layer...it won't hurt the mix...

Nice work


edit: I am unsure if a defat step is warranted with ACRB or not....please bear that in mind...

When i did my first extraction i used an a/b with an extensive defat, i yielded less then 300 mg from an lb. as i posted earlier in this post, when i followed your tek to a t with acrb, i got 745 mg of clean yellowish crystals, that was without a re-x either.

edit: and for my EV the amount of water is PRECISELY perfect, exactly 700 ml of solution causes all 50 ml of naphtha to be in the long skinny neck of the bootle :] it made my so happy when i first saw it :] however, the downside to this is that most turkey basters wont fit through the opening :/

Is there any danger in using plastic turkey basters, eye droppers, syringes, pipettes, or baby nose cleaners? i noticed the naphtha seems to break my syringes very quickly....

I use a heavy plastic Turkey Baster...some don't like that idea and would rather use glass pipette or whatever.
I think that the minimal time the NPS spends in the baster...shouldn't be a problem.
Each to his own...

see:
https://www.dmt-nexus.me...amp;m=427673#post427673

i use a glass turkey baster, its well worth it.

I second the use of glass, plastics are soluble in naphtha and some may even start to crack when you pull the solvent into them. I tried a plastic baster one time and will never use one again. All glassware in a lab is made from glass for a reason, it doesnt react with much. Though leaving strong bases in glass will weaken the glass over time.

Good to know. you make me really wish i had paid more attention in ap chemistry... ><

ill begin the hunt for glass pipettes, and turkey basters immediately. what other lab equipment might you recommend for this procedure? ive been eyeing a separatory funnel.....

ball jars and a norpro glass turkey baster just about covers it, though a crockpot and some pipettes always help things go more smoothly

they have 1 litre sep funnels for $25 on sciplus.com makes it real easy

Good to know.

CTM! Any updates on your method?

First pull off of 200 gs yielded 2.7 after 2 hours in the freezer, I needed to reuse the naphtha and got hasty so I didn't let it go for 12 hours, but that baking dish looked like a winter wonderland 2nd and 3rd pulls are freezing, gunna do a fourth soon, I think a fifth is probably unesecary. For the 2nd and 3rd I had to use zippo fluid cuz my local art supply store is out of naphtha, will that affect my yields at all?

depends on the zippo fluid, did you do an evap test to see if it left residue behind? As long as it evaporates freely I;m sure it will still pull the goods out. Sounds like a good first pull though, and 12 hours in the freezer will still get you most of the spice. Ive left it in the freezer for even shorter periods and still got great yields so you should be alright, but def test the zippo fluid for residue as that will likely end up in your product.

I was probably gunna re-x the zippo pulls anyways once I get clean nap.
And I think you misunderstood, I got 2.7g after 2 hours in the freezer, not 12. The other pulls however are sittin for 12+

Wow, thats great yield for such a short time. I'm curious to see how the other two turn out, you may get a very high yield on this. Nice work!

I was actually going to suggest a re-x after, but the residue could prevent proper formation of crystals if there is enough of it, so still check if you have any left. I've heard that some lighter fluids work great and other not so well, so a check would give you a better idea before the precips are finsished.

I like the sound of this. 2.7g is amazing for 2 hours!

Did you use the method you mentioned earlier?
Did you change it in any way? If so, how?

I followed the procedure I posted precisely, only difference is the later pulls were done with zippo fluid instead of naphtha and the first pull only sat in the freezer for 2 hours.

Nice, I'll have to try it. How much of everything did you use? Lye, salt, water, etc.

exactly what i stated earlier. i did 200 g of bark total, but i did it in 4 EVs, each with 50 g of bark just as explained in cybs original tek. my total yield was 5.7 g however i only did 4 pulls, which i now regret as even the 4th pull managed to squeeze out .6. i feel like if i had done a 5th and 6th pull i definately couldve gotten that fabled 3% yield.

However this was all with out re-x and the pulls clearly degrade in quality as they go on. the first pull was 2.7 of off white fluff, 2nd was 1.8g of slightly yellower spice, 3rd pull was .6 of yellowish crystals with a decent amount of redish wax, and the fourth pull was .6 of very yellow crystals.

^^^ keep pulling till nothing comes out...
(did you keep your mixes?...if you did...go back, warm and pull moar...)

yes the colour changes as you go as the lye does its work...yellow is a common trait with STB type teks...

i know, i am a fool :[ i got hasty, checked the 3rd pull kinda early and it looked like it might yield a .1 so i decided not to waste my time with any more pulls, but then it yielded a .6 >< haha every pull seriously suprised me, i was always expecting a lot less then i ended up with. Im amazed. cyb, i highly recommend you create a modified tek with all the tweaks that CTM suggested, as it seems to be the best tek around for acacia confusa. I yielded 2.85%, and i think i could easily made it to three had i not been so hasty.

With your tek as it is now i yielded 1.5%, with the 8 hour acid soak, the freeze/lyse, and the fine powdering, and the slightly more acidic solution, i got almost double that. Im truly amazed :] this is only my third extraction, this is an amazing community, thank you so much cyb and ctm for your help! my appreciation of your knowledge goes beyond words.

^^^ Great news...thanks so much testing these ideas...tek is on it's way soon

pics of the fluff would be great too...