Hi!--I posted this in the actual cacti forum as well, but I'm thinking the readers of this particular forum may be more knowledgeable about the chemistry. Thanks! Hello All-- This is my first post to this forum--great place! I did take the time to read through the tek that was stickied and some other postings but I can't find an answer to my question. Somewhere I swear I read that the goo you are left with after a methanol or ethanol extraction of powdered peruvian torch is actual "free base" mescaline. I am not a chemistry major (about as far from it actually, albeit at the grad level) so please forgive if I am mistaken. I also thought I read that you could add citric acid to this goo if you wanted to truly powder your extraction, making a mescaline salt. Is this true? My alcohol extraction is nearly done so if someone could help me I would greatly appreaciate it! Feel free to PM me too. I'll be checking back frequently. Thanks! tesseract314