Naptha really doesn't take very long to evaporate, and as far as having contaminants, that's why you test evaporate your solvents before using them. That remains true whether you plan on freeze-precipitating, salting out, or evaporating, otherwise you don't know what could be in your solvent. Thus, you should already know that there are no contaminants or extraneous junk in your solvent. When you compare the amount of time it takes to evaporate naptha against all the steps you go through to get your honey spice, it's probably shorter to just evaporate. If you use a fan you may get a small percentage of n-oxide (but as this was the stuff that wouldn't precip out, I'm willing to bet it's already decently saturated with n-oxide) but you could always skip the fan and just let it evaporate if you're really that concerned.director of sound said:naptha takes forever to evap and most naptha has some contaminants that will make the end product taste bad.
bump.Phantastica said:yo director, my man, so from the first pull with HEET, i got ~0.8gm of amber oil (honey spice) from the naptha. i know i got most of the actives out in the first pull due to a significant color change in naptha after the pull. however, with my second pull with HEET from the same naptha, something really weird happened. The layers formed a weird ass emulsion, and the layers won't seperate even after 4 days now. the first pull went really smooth. i shook the shit out of it for a long time for a couple of times, and the layers seperated within 2 minutes. but with the second pull, i barely shook it, and the emulsion formed after the first gentle shake, and remains as an emulsion even today (4th day). you know why this happened? did it have something to do with most of the actives being pulled out in the first pull?
also i should mention, this emulsion is really weird looking, with a wavy liquid shape above and below where the separate layers should have formed. also there's fatty ellipsoid bubbles inside the emulsion, which don't seem to burst until shaken vigorously, in which case they form once again:roll:
Phantastica said:3) Is this possible with used limonene/xylene and other solvents as well..?
Dr_Sister said:Nice discovery Director of Sound!
Phantastica said:3) Is this possible with used limonene/xylene and other solvents as well..?
according to the following miscibility data this tek would not work with xylene as methanol/xylene are miscible, meaning they would not form two layers
Sister cannot find any data for methanol and limonene though, but a simple test would be to add a small amount of the two together and if they form a biphasic solution then you are good to go.
Phantastica said:umm when i did it with limo, i'm pretty sure that the 2 layers separated. there were 2 distinct layers of limo and methanol (HEET). I'm not 100% certain if i'm recalling this correctly, but i am 95%+ positive
edit* i never tried it with xylene