Preliminary Experiments On With The Volcano Tempature Setting.... By Dr Hornby

Dr Hornby and research team..

Well we ran some preliminary experiments with the Volcano. I will report these
findings with a caution that they are merely pilot experiments, to find our way only.
Figure i put my foot in it by promising results, not thinking about the consequences that
the findings may bring. And now we're realizing that we may be opening up a whole new can of worms.

Firstly, we have known for some time that the Volcano does not deliver all of the THC, particularly at
the lower settings, of around 5 and 6. We know this since we use high-pressure liquid chromatography
(HPLC) to measure the amounts of the most abundant cannabinoids, that are present in the sample,
before and after vaporization. By measuring the THC, for example, left behind in the sample carcass,
we can determine the efficiency of the vaporizer setting, since we also know what we started
out with.

Since this is a study of heating cannabis we must consider a couple of things.
One is that THC, plus the other cannabinoids, are not active as they sit in nature.
For them to interact with the THC receptor, firstly they must be de-carboxylated or activated.
Meaning CO2, must be kicked off the parent molecules, that in the un de-carboxylated
form are acids, chemically speaking. De-carboxylation, in this case, is accomplished by heating,
which, in turn, excites the chemical bonds of the, for example, THC molecule causing it to release
carbon dioxide at the weakest bond. This, subsequently, activates the molecule, allowing receptor interaction.

If more heat is applied to the molecule, eventually it will reach its boiling point and enter the vapor state.
De-carboxylation occurs before evaporation and over a broader range of temperatures.
And is critical for understanding cannabinoid pharmacology. Therefore in vaporization we have a two-fold
process occurring that allows the medicine to be delivered. De-carboxylation, followed by evaporation.

When we run cannabinoids by HPLC we see the acids of CBD, CBN and THC, plus trace amounts
of these already de-carboxylated cannabinoids (alcohols as they're called, chemically). We normally total the acids with the alcohols to come up with total THC, CBD or CBN for the sample.

In the experiments discussed here we vaporized a cannabis sample that had already been shown
to contain an unusually high amount of THC, with relatively high CBD.
We ran three separate experiments at Volcano settings 6, 7.5 and 9. At each test, the same
weight of cannabis was placed in the volcano and two bags vapped for the same time period.
Following vaporization, the carcass (sample left behind), for each temperature setting was analyzed
for the three most abundant cannabinoids.

We will attempt to tabulate below our experimental results.


Volcano Setting THC remaining mg/g CBN remaining mg/g CBD remaining mg/g

6 260 0.05 0.6

7.5 245 0.05 0.6

9.0 75 0.05 0.15

With all HPLC analysis there is an error window associated with the quantification. This window is normally acceptable if it has a coefficient of variation of 15% or less. This is simply a statistical evaluation of the standard deviation or variation around the mean, divided by the mean and a percent value taken.
So with THC there is often an error window of plus or minus 2% around the measurement and for CBD and CBN
this is more like plus or minus 0.05%. To convert the above results to a percent value, simply divide by 10.

So, what do we learn from these results. Nothing about decarboxylation, since it's not presented here,
although much is gained from observing the chromatography (not shown), where a one to one decrease
of the cannabinoid acid and increase in the alcohol is seen. Nevertheless, in the table we are showing only
the de-carboxylated actives that are left behind.

As stated earlier, the cannabis sample used in this experiment tested particularly high in THC,
running at 260, + or - 40 mg/gram. As shown in the table, this did not change for setting 6 on the Volcano
and changed only slightly for setting 7.5. We only see a significant decrease in THC at setting 9.
These results also confirm earlier observations.

The boiling points of the three cannabinoids measured are as follows:

THC 200 C
CBD 190 C
CBN 185 C

We can see from our before and after sample, that CBN is virtually all gone at setting 6, leaving
only residual amounts. The THC, however, all remains at this setting. As does the CBD.
At setting 7.5 the THC is fully de-carboxylated, but still present to roughly 95% of its original value.
Interestingly, at this setting the CBD is only half de-carboxylated.

At setting 9, all three are fully de-carboxylated and have moved to the vapor state.
A small amount of CBD remains as does some THC.

We can conclude from these very preliminary experiments that with the Volcano at setting
6 all the CBN is gone along with the more volatile terpenes and aromatics. Yet at this
setting, although the THC and CBD are being activated they have still not received enough heat
to enter the vapor state. In addition, at setting 7.5, similar conditions hold, with the THC still
not evaporated. It's only at setting 9 that THC receives sufficient energy to become volatile.

And remember these results are preliminary.
We will continue to conduct more experiments on the Volcano, next
time focusing more on what happens to the CBD and at what setting.

So we did another experiment to six bags and behold, all is gone.
THC acid, converted THC, CBN and CBD, all gone skyward.
This is at Volcano setting 7 and six bags were taken.
So between 2 bags, where virtually all the THC is still present,
and bag six the THC is being boiled off. To 2 bags it's all
terpenes and aromatics.

Suppose, we will have to narrow it down, to see if there is
one bag where the THC, fly's, at setting 7. Bet it's bag 4.
We'll see...
We ran another experiment with the Volcano. This time we collected 6 bgas at setting 6.
This just doesn't move the THC into the bag, only decarboxylating about 20% but not boiling
any off. Its aroma therapy at setting 6, very little, if any, active THC is delivered.
Of course at this setting you will be blowing off the terepenes and other lower molecular weight
aromatics, that do, indeed, have psychoactive properties. Incidently, these compounds, termed
the essential oils, have been banned, as long as the plant. It's my notion that the euphoric part
of the cannabis experience is a result of the essential oils and not THC.

Finally, i must remind that these are merely preliminary experiments, used to guide the way
to collecting more confirmatory data. All experiments of this type must be repeated a number
of times, with means and standard deviations from the mean, determined.

Last week we did some more experiments with the Volcano, taking samples from various temperature settings and bag numbers. In all cases we are measuring the amount of the most abundant cannabinoids in a sample taken from the left-overs in the vaporization chamber. Since we know the mg/g amounts of THC, CBD and CBN in the starting material, we can determine how much of each cannabinoid has been "blown off", at what temperature setting and what bag number. I believe that earlier i stated that all of the active THC is not delivered until bag 4 at setting 7.5.

In this set of experiments samples were prepared by a member assistant, according to a defined method.
Here we investigated three other temperature settings of the Volcano: level 3, level 4 and level 8. At each
setting 4 or more bags were collected.

The sample used was a Kush with a THC level of roughly 150 mg/g. CBD and CBN both in the 3 mg/g range.
These sort of values are very common here in BC and the profile very typical of BC cannabis.

At level 3 we see efficient decarboxylation, so we know our sample is seeing heat, but not enough to send the THC skyward. This level is a good way of making an oral prep, from the carcass, since at bag 3 all of the THC is activated. But you would have to wait until at least bag 3 to get better than 90% of the THC in the activated form.

Level 4 experiments were conducted the same as for level 3. With the same amount of cannabis (0.3 g) being processed and bags collected in the same time period. Level 4 is no more exciting in terms of lifting the THC to the vapor state and is simply a continuation of efficient decarboxylation of the THC-A to active delta-9 THC.
Once again a bag 3 greater than 90% of the THC is activated, and less than 1%, blown off. Therefore breathing the vapors collected at bag 3, level 4, is at best aroma therapy, with very little active THC being delivered.

Now we go to level 8. Immediately, at bag 1 all the THC is decarboxylated and roughly two thirds delivered.
And at bag 3 80% of the activated THC is gone. So once again we make the observation that a level setting of 7.5, or above, is required for 3 bags to deliver activated THC. Lower settings, indeed deliver active medicine in the form of terpenes and aromatics, essential oils long know for therapeutic properties. I have often thought this is where the euphoric experience of cannabis lies in these, also prohibited, oils.

Anyway, that was about $2500.00 worth of LC work to do that outlined above.
We accept all donations to help support with this and continued research.
Grow in Peace
Dr. Hornby and research team..
 

jdizzle22

Well-Known Member
Interesting read but I find it very unlikely that virtually none of the THC is boiled off with 1-2 bags at settings 6 or 7. NORML co sponsored some volcano studies in the past and showed that they delivered 3-4x the amount of THC as smoking a joint of the same amount would and they never mentioned anything like "oh by the way we had to run multiple bags at the highest heat setting to get the THC out even though THC vaporizes at lower temperatures". So I am really curious as to why everyone seems to think volcanos work just fine (and much better than smoking) at 6-7.5 and the experiments you paid for claim it takes 4 bags to get much THC out?

I myself have used a volcano and have never had more than 2 or 3 bags
 

Le_Poteux

Active Member
I have to admit, I am with jdizzle22 on that one.

Thumbs up for the well written text and for taking the time to look into it.
 
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