Hi there,

I am about following the classic 69Ron D-Limonene technique for extracting alkaloids form San Pedro - I have all the required items and 6 meters of San Pedro ready to go. The only thing I'm stuck on is the purification process using MEK. Obviously the MEK needs to be anhydrous to do its duty, but I don't understand how to get it to that state without a lab...

The Wiki says to put magnesium sulfate into the MEK, let it sink then decant the MEK. That makes sense, but as soon as the MEK is exposed to the air wouldn't it just reabsorb water from the atmosphere? Or does freezing it prevent that from happening?

My plan is to chuck some epsom salts in the MEK, then decant with a syringe, freeze the syringe then squeeze the MEK onto the mescaline acetate. How can I avoid water contaminating it in this process??

Also, can the D-Limonene be used as many times as you want with no problems? Is there anything you do to it after each extraction, or is it good to go as soon as it's separated from the vinegar (after three or four pulls)? I keep reading about people "salting" the D-Limonene and I have no idea what that means in this context.

Thank you for any help, and for making this information available. Please understand that I did my best to find an answer to this but I don't know what key words to search for. My apologies if it's a stupid question.

Your plan is sound. The syringe is something I have never used but sounds like good tool.

Avoid as much water as possible. Dry your Epsom first.

For easier cleaning you could try hcl or fumarate.

Alright, thanks. I guess I got confused because the only synthesis guides I have seen that required anhydrous solvents had to have TOTALLY anhydrous solvent, but synthesis is different to extraction, clearly. Fumarate sounds interesting, but since I've already got heaps of MEK I'll try that first - no shortage of San Pedro to experiment with, so I'll follow the technique to the letter for my first go. I'm also really interested in evaporating the decanted MEK to compare it to purified mescaline. Cactus has always been my favorite drug experience by far, so having it in a form that doesn't make me vomit is a big plus. thanks again.

bake epson salts in oven 1st, 500*f for 20 minutes if memory serves

not all salts are soluble in cold water.... no need to use dry solvents with sulfuric acid