I love the anticipation of the precipitation!

This one chunk (last three images) weighed 900mg and its difficult to convey its size in pictures

Sending good vibes to ya'll

Beautiful shards, thanks for sharing.

Heck yeah, great stuff antichode

oh my god...those are literally some of the nicest cact-xtals ive ever seen...are they hcl?

Sulfate salts my friend. They grow like this directly from water, no acetone added! You just need a good concentration in solution, this was about 10 grams in 100ml of water.

Gorgeous x-tals you have here

wow! i dont know anything about sulf really im only acquainted with hcl. 10g is a lot of alks for 100ml of water though, really awesome it just crashes out like that. seriously beautiful stuff.

how many drops of sulfuric acid do you use per pull? i do 5-10 drops of hcl usually per pull.

Wow beautiful! Which tek do you use?

How many drops depends on how much mescaline freebase there is. You need to add dilute sulfuric acid Untill Ph 7 is reached. Use a good ph meter and lots of shaking. Cycle the aqueous layer back and forth testing it each time. Untill it no longer climbs above 7 when shaken. Then all of your freebase is in its salt form and it will be very clean. The same method should be applied regardless of the acid you use but sulfate is preferable because it crashes out of water making it very pure

The oldest tek on the net. STB on fresh blended cactus ala FOAF

Alright..

You and Eaglepath seem to get interestingly pure product from the oldie goldie tek using water-based extraction, nonpolar solvent and backsalting.

I never had success with that, always getting terrible emulsions and the product resembled red gum or orangey goop.

I shifted to alcoholic extractions followed by A/B, and this still yield tan sulfates, nothing even close to what you get with a simple STB tek. I would really love to know what your secret technique is

BTW an1cca uses similar method and concentration for re-x from water, only he adds small amounts of acetone to the water until it becomes and stays cloudy (water-acetone solution cannot hold mescaline anymore). Then he boils the solution in hot water bath (80 C) toredissolve everything and evaporate acetone. Then few minutes in a freezer promotes crystallization.

No no no no... its a misunderstanding I have never ever performed a cactus tek.. Well I tried House's one but the result were some gooey goo, so thats why this pure crystals sold me.. but Im a little bit sensitive to poor fragile San Pedro being used with NAOH.. I mean the MHRB is tough and hard.. but little San Pedro seems so fragile.. maybe it will hurt him..

I think regardless of how you extract the alkaloids, the 'secret' to good crystals is salting with sulfuric acid and using DG's instructions on this forum for simple titration. This will give you very clean results. Brown or tan mescaline is usually a sign of over acidifying at the salting stage. Your salting water needs to be at PH 6-7.

My STB method which is no secret....

Fresh Whole blended cactus
20% by weight of lye
Blend vigorously until its watery and fully slaked (I use a paint mixer on a drill). Leave it till the foam subsides (Sometimes as little as 3 hours)
7% by volume of Xylene
Blend on high again for 2 or 3 minutes
Heat the extraction to 80deg C
Pull solvent and salt once to PH 7 (following DG's instruction)
Return solvent to cactus mix and repeat twice more.

Some notes....

Add extra water to help your blender along, this is easier in winter when the plants are holding water naturally. Your initial blended cactus should be quite soupy, not dry. More water is better IMO

The excess base really helps to speed things along, I know its excessive but it works!

You need to heat the extraction to avoid emulsions.

Use a good PH meter for salting

You could do this in a day if you have access to heat everything, its very fast and not labor intensive. No need to stand over a pot boiling and filtering all day, let the base do the work for you!