Sorry, just read it again, don't see 'distillation' there:
http://tetralabs.com/puregold_technical.php
How about Fractional Distillation being a better model for vapes? Do we at least agree there?
How about the proof in the barrel?
Not major points, of course. I still think HAL101 was more right than wrong I guess, FWIW. Oil heads are looking for the flash, not purity.
OF
Tetra only says "heat" on that page - I'll see if I can dig up what they _used_ to have (like the price list removed after it was posted on FC). They do a fractional distillation, I'm sure, but they don't go low enough in pressure to separate all the cannibinoids and they don't use a large enough column to remove all the terpenes (ever see a 16 story oil cracking tower - I grew up near some) - the yield would be very low if they tried (but maybe .001 Tor pumps are cheaper now - I did this very very long ago) and the time would be long (though they have always said it takes two weeks to make a batch).
Yes, we can agree that fractional distillation is a better model, just keep in mind that the soluble impurities will cause the boiling point of any oil to be higher than that of pure THC (and wax with mostly THC-A, we have the mixture acting one way while the process of heat induced decarboxylization occurs, dynamically changing the chemical structure while we "vape" it -- i.e. wax will boil at a hotter temp than oil, but the condensate will not act particularly differently. At lower temperatures, like when you set your VV LT down in voltage, the increased flavors are the result of terpenes which are *immiscible* in the gas phase with THC forming an azeotrope (a gas made of a mixture of substances which can't solvate each other). At high temperatures, most of the terpenes come off before the psychoactive stuff and faster so you only notice the first hit tastes different (better) .
Hmm... On reflection, maybe the simple model is too simple because will we say "vaporize", most of the devices on FC, including the Omi carts, deliver an aerosol at the user's mouth even if something boils or does vaporize. So at the heater for a vape device, the model of fractional distillation is probably good, but past that point any hot gases or liquids (droplets - i.e. visible vapor) would be device dependent.
The proof in the barrel. Booze is distilled at a purposely higher temperature and NOT fractionated to allow the taste in. After distillation most whiskeys lose almost a third of their alcohol while "in the barrel". Companies making things like the Polish vodkas or Everclear use a large fractionating column with many cooling plates (close to what the petroleum industry uses) to distill to a high proof that what you were doing (or what other liquor makers do).
last point: Yea, HAL101 was mostly correct, and (spot on) most "oil heads" want "flash" - 100% agreement
For this one, I wonder what proportion of Omi users were "oil heads" before as opposed to switched? For me it brings back the "old days" - I remember $100 kilos of ditch weed giving 60 grams of clean oil in the '70s (hexane extraction, take up into MeOH, convert the CBD to THC, then adsorb ((NOT absorb) onto carbon, wash and chromatograph on silica with ether/methylene chloride/hexane).
Far too much. I tried not to give a lesson (I haven't taught this material since the '70s), but I guess some people really do want to understand things
-NDA