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  1. V

    The actual chemical reaction occurring during vaporization of THC

    Yes, an important part of "the specifics of what happens when the THC is turned from liquid to vapor" is decarboxylation. But decarboxylation results from any heating in its effective range, e.g., >200˚F. What is way more relevant to the actual process of vaporization is the combined thermal...
  2. V

    When did the Eterra first come on the market?

    I'd guess about 1995-6. I got my first vaporizer, a Flash Evaporator, in 1994 (I recall because I had just moved). The Eterra came maybe 1-2 years later. The Eterra Web page says, "Flashevap stopped producing the Eterra in 1999" (at http://www.flashevap.com/eterra.htm). {Maybe, some data...
  3. V

    The miniVVPS - FC's Own Voltage Regulator

    What is the power handling capability? How many watts can the device handle continuously?
  4. V

    Crazy idea for high temp vaping - remove oxygen?

    Herbal vaporization at temperatures starting at anything above near-combustion temperature (mid-400˚F) is impossible! Essentially all common organic substances pyrolyze in the low and mid-400s˚F. This is heat-induced breakdown of organic bonds and resulting polymerization, visible as...
  5. V

    Is It Possible to Be Allergic to Marijuana? Science Says Yes

    Also, there can be rare individual high sensitivity or reactions to specific irritants, with direct chemical irritation different from antibody-mediated type allergies. Many terpenes and other aromatics are simply well known to be tissue irritants. For example, just imagine if your eye, like...
  6. V

    Tastier portable vaporizers?

    Regarding my question, "What physical, chemical and/or engineering aspects make a vaporizer "tasty" or not?," several people have responded citing rather generic desired characteristics of convection vaporizers, such as accurate temperature control, short vapor path, not overbaking, etc. But...
  7. V

    Screen Materials

    Steel is probably the best choice, and as totally non-toxic as anything else. Copper, aluminum, gold, silver, titanium - any pure metal that would ever be generally sold or made into a screen is not going to be toxic at all. Keep in mind, vaporizer temperatures are wimpy, nothing, for these...
  8. V

    Rotovaps for QWET/QWISO?

    I thought rotary evaporators were most or best used in a herbal context for fractional distillation separation/purification of similar vaporizing temperature range liquids, such as essential oils, similar to petrochemicals (oil refining). Here, I'm referring to purifying already rather pure...
  9. V

    Tastier portable vaporizers?

    Please forgive my ignorance. What does "tasty," as in "tastier vaporizers," mean? What physical, chemical and/or engineering aspects make a vaporizer "tasty" or not? Is "tasty" really the lack of having, contributing, any taste? [I presume no one wants a vaporizer that actually...
  10. V

    Soxhlet Extractors

    I have no experience with the materials being discussed, but how about rotary evaporators, such as from Buchi, and fractional distillation?
  11. V

    Fluidization

    I recall Bob (commonly attributed as the Eterra/log-style vaporizer "inventor") at his Web site (Flashevap.com; page could still be there) explaining how he was inspired to develop his first vaporizers after inspecting a city waste incinerator, with this a very large-scale fluidized bed. Yes...
  12. V

    Consistency?

    With you citing " I only really go through one bowl every 3 - 4 days," your basic problem could be dosage. Your dosage could simply be too low for the rather potent effects you seek (multi-spectrum symptomatic "relief"). A bowl lasting 3-4 days might be considered lower-end recreational...
  13. V

    Did I just vape some moldy weed?

    Or rather than mold (blaming herb contamination?), did the herb simply get too hot - turn smelly black or even combust a little? Otherwise, the Firewood has a lot of wood that gets hot, and this could be a cause. With you citing both being new to vaporization and only having a few days/sessions...
  14. V

    Stuck stopper, beyond stuck.

    It sounds like you'll never be able to immobilize it, get enough leverage, to pull it without jabbing it all the way through with a spear with a barbed end (like the hook above). That won't be easy. Otherwise, I still think trying to melt and simply pour it out or soften it with heat and then...
  15. V

    Stuck stopper, beyond stuck.

    Going back to basic chemistry: Presuming it's good quality natural rubber, basically nothing is going to dissolve it (or rather nothing safe, e.g., with suggested methylene chloride being carcinogenic). But presuming it is good quality natural rubber, likely for a chemistry stopper, you should...
  16. V

    Do these things exist or no?

    What you are trying to do is nothing new -- vacuum distillation. In fact, this is how essential oils, terpenes, etc. have long been and are purified at lab. scale. For examples of one leading type of vacuum distillation equipment see rotary evaporators, e.g...
  17. V

    Where to buy naked launch box?

    Vapenow.com also has sold just boxes.
  18. V

    Log vape resistors - My DIY Log Vape

    From Ohm's Law, at 12 V, 40 watts, you've got 3.6 ohms resistance with 3.33 amps current.
  19. V

    Want to get stoned without losing your memory? Take ibuprofen, scientists say

    The real point or advance is that now there are now both a target, cyclooxygenase-2, and well-known starting/reference point (ibuprofen) to discover and refine better drugs with this mechanism of action. This news refers to scientists reporting development of a new cellular assay (in the...
  20. V

    URGENT Have you vaped moldy weed?

    Obviously if you have a mold allergy, you should not be exposed to any relevant mold allergens. That is, you shouldn't go near anything you know to have mold (of the type you've been diagnosed as allergic to). But as I noted, essentially sterilizing this herbal material, heating/baking it...
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