It has been over a decade since you posted this, and thanks so much for all the work and the research! Also to the other contributors to this thread/method for posting their experiments and results with different acids, solvents etc. I have read the whole thread a few times

.
In a long distant past, I studied to be a lab technician. I remember we had biochemistry, analytical chemistry and organic chemistry as classes but none of the stuff you need to do a successful extraction stuck.
Now, I am almost 61, married, steady job in IT and I trip whenever I can. Since my first mescaline trip when I was 48, there have been 17 ventures into psychedelic space, with number 18 on a heroic dose of mushrooms (Tidal Wave APE - a cross between Tidal Wave and Albino Penis Envy, said to contain 0,65% per gram dry weight. I had the equivalent of 9 grams or between 50 and 60 mg of psylocybin), and number 19 on the same variety, a bit milder, but still very intense. Number 18 (psylocin) came close to number 2 (mescaline), the latter still being the most intense experience to date. I documented it here:
Reality Broken in the
Introduce Yourself Forum.
I just love altered states.
The problem with cactus is that it is truly God's way of saying sorry. It gets harder to drink a San Pedro tea with every preparation I do, probably because I know what's coming, so I've been looking for a good, reliable, fool-proof (I am unbelievably clumsy, which is the reason I work in IT and not in a lab

) method to extract mescaline. This leads to:
- Less or no physical discomfort
- Better control over dosage
I tried
Kash's A/B Mescaline Extraction a few times with no luck due to me making basic mistakes (e.g. addling NaOH too quickly and basically overheating the first San Pedro extract, or mixing the xylene too vigorously which made it nearly impossible to separate the organic layer from the aqueous layer).
I also tried a method described in
Peyote and Other Psychoactive Cacti by Adam Gottlieb, equally with no luck.
I had a look at
CIELO's Ethyl acetate approach which was recommended by
Transform, but decided it was too complicated (and ethyl acetate difficult to purchase).
So then this thread caught my eye and i decided to give that a shot. First with a small quantity (leftover cuttings from my last San Pedro tea prep which I originally wanted to keep for rooting and growing new cacti) as a proof of concept, and if that works, I have about 1Kg of E. Scopulicola.
I have:
- 8,17 grams of a mix of T.Monstrose and regular T.Pachanoi, wood trimmed (I cut them into chevrons, keeping only the green part). Dried in the oven at 40°C for 2-3 hours and then kept in a Dryferm bag (these are excellent! Controls moisture, keeps oxygen out. Generally used for drying herbs, but they have other uses
)
- Ca(OH)2
- H2SO4 15% (pH down for aquarium)
- Acetone
- MgSO4 (Epsom salt)
I hope that the amount of cactus is enough to produce meaningful results.

8,17 grams of dried cactus.

A single chevron.
I will keep notes and post the results here.