Quote from: strelitzia on January 04, 2013, 03:15 amHi there folks, My chemistry knowledge is nonexistant, and my meth usage is frequent, so I have come here with the same urgency to find a way of purifying the 'meth' that I am consuming. Firstly, I was under the impression that meth was not acetone soluble. Can anyone confrirm this?Also I am now confused about the different melting points. From my own observation of using the pipe, I see the first few turns as blowing off the first cutter/solvent - this one often tastes like acetone - and is highly recommmended not to inhale this part.As the bowl progresses, this taste disappears and we have (hopefully) the familiar taste and mouthfeel of 'meth', the melted bubble tends to get thicker and oily, recrystallises with those wonderful patterns (Mt.Fuji....spokewheels...???) Sometimes I've scored pretty average gear that tastes and smokes badly (wet puddle with no form or surface tension, sets to a solid mess rather than recrystallises)...but after about half way through the burn, the good characteristics return to the smoke, the puddle and the recrystallised blob. I have assumed that it was cutters and impurities that are vaped off over the first half of the burn, and 'meth' that is left over towards the end. If this was the case it would be the meth that has a higher boiling point, which allows the other stuff to burn away first....or perhaps I am encountering other unknown chemicals in that first half of the burn, while the 'meth' bubble at the end is just a combination of meth and standard cutters. Any informed input would be greatly appreciated here. :DI've given up vaping, so I have fewer clues to work with these days about the product and I'm not going to be tempting myself by vaporizing the stuff a foot away from my mouth... long story short, I haven't found a way yet to separate this one particular cut. Meth is not acetone soluble, nor is the cut.My "leech equal parts" statement is because they're both water soluble, and even "pure" acetone from the hardware store has H20 impurities. You can leech some of the H20 out by pretreating with... oh, what is it... magnesium? I don't remember, but they're epsom salts -- whatever that stuff really is. You heat them at about 400 or 450 in the oven for like an hour or two, and it'll become brittle and chalky sort of. Then you let some soak in acetone, separate the acetone very carefully after awhile, and you get slightly purer acetone good for doing acetone washes.The problem is that there's still H20 in there, and it's still going to leech off some of your meth. It'll leech off some of the cut too, but I don't know if it's more or less soluble in water... so I approximated with "leech equal parts." Does that answer your question?