Make cactus as fine as possible. Combine cactus with water, like 2 litres of water for every kilo or so, I guess, and cook down until it stops being slimy, goes thin.
Transfer to glass container. Add as much NaOH as there is cactus, by weight. Add some more. Leave for a while.
Add enough xylene to form like an inch layer in the top of the glass. Mix it in and let it separate. If it doesn't separate, forms an emulsion, or a gloopy porridge, you can solve this problem with heat, base, and time. You can NEVER add too much NaOH. If in doubt, more lye.
When it does separate, and you're happy it's been in there long enough to soak up all the mescaline it will, suck the xylene (the top layer) out with a glass gas syringe (easily bought online). Transfer it to a small jar, like a jam jar or something, that you have a tight fitting lid for.
Add some hydrochloric acid, I use 37% conc. diluted a bit, it doesn't matter that much, any excess will evaporate.
Cap it, shake it up really well. It will separate into two layers. Stick it in the freezer.
When the water layer has frozen, take the jar out, and as quickly as you can, pour the xylene out, back into your cactus/water/lye mixture.
Rinse the ice in the jar with a little bit of ice cold water to get all the xylene, pour this into the cactus mix too.
When the ice melts, pour the water into a big flat dish to evaporate. When it does, it will leave behind a residue of crystalline powder. This is mescaline hydrochloride.
Repeat the steps with adding the xylene, mixing it up, pulling it out, adding the acid, freezing it, and pouring the xylene back in until you stop getting worthwhile amounts of mescaline from evaporating the water.
You're done. The cactus mixture can go down the drain. The solvent, try to save and reuse, it's bad for the environment, but it's probably going to end up there, either by being poured away or allowed to evaporate. Try to avoid this as much as possible. If you want to purify your mescaline, you can use dry acetone (add Epsom salts you've baked to acetone bottle to dry it) and rinse it in a coffee filter. I never found this necessary.
Safety points:
ALWAYS wear goggles when working with acid or base. They will BLIND YOU FOREVER if you are not careful. I once had a very basic mixture splash all over my face. It covered the goggles I was wearing. If I hadn't been wearing them, I'd be blind for sure, probably in prison too.
NEVER add water to acid or base. This forms a dangerously concentrated solution. Always Add Acid.
ALWAYS have a big jug of white vinegar on hand to neutralise lye spills.
DON'T fucking smoke around solvents, you fucking idiot. Work in a ventilated area. Xylene is flammable. Acetone is really flammable.
NEVER use aluminium, check to make sure everything you use is resistant to being eaten by solvents/acids/bases you are using.
Notes:
You'll notice this is not a precise tek but a general method. I think that teks encourage people to do things they don't really understand, and make things sound harder than they are. What you are doing is not difficult. You have freebase mescaline. You are dissolving it in a solvent it goes into. You are then turning it into a salt. This means it no longer goes into that first solvent, but into water instead. You are then separating the two layers, and evaporating the water, leaving the mescaline salt behind. This is not hard to grasp. Grasp it.
This will work with many different kinds of acids, bases and solvents. I happen to use hydrochloric acid, NaOH, and xylene. You can use others.
You can never have enough base. Heat, base and time will solve all your problems.
The hardest part of this is the technique with the syringe. Master this, and you have mastered mescaline extraction. It is much more important to have solvent without any water/cactus/lye mixture than it is to get all the solvent.
Questions?
