Hi guys, a FOAF is new to A/B extractions, and is planning his first trial run on a San Pedro stock. He is wondering if MEK or Acetone would work better than Xylene for separating the freebase.

He doesn't remember much from the chemistry course he took so many years ago, but for some reason, he's under the impression that since the XlogP figures more closely match that of mescaline (.7), that they should work more efficiently.

It seems that MEK and Acetone have XlogP figures of .4 and .2 respectively, while Xylene is around 2.5. Is this guy totally off base here? Is the XlogP figure irrelevant in this case? Any input is most appreciated.

Thanks.

MEK and acetone will mix with water so you will have seperated nothing.

Xylene's def the way to go with cactus, or if you don't like the smell, limonene is a closely adequate substitute.

Ahhh, thank you Soulfood. That would have been a mess.

i like xylene myself, but losts of folks like like tolulene because it smells less

I always forget tol. as I have no way of obtaining it.

Xylene's just cheap and effective