That chart is perfect. Good find. That chart (and the math that created it) was the basis for the computation for the pressure curve really I created. If you observe two known points of a boil at two different pressures then the math that created that curve chart you posted can be used to extrapolate all the rest of the points along the curve. The chart you posted uses mmHg for the pressure unit;
.01 mmHg listed as the top pressure value = ten microns. I use microns as a unit of reference. The math gives crude estimates.
If you take the two known points I used you can plot it on that chart. “Boiling” is somewhat a subjective term at these pressures. I used the bottom of the bottom of the cold finger glass of the sublimation apparatus to judge when accumulation became noticeable as the “boiling” point. The two data points used in the calculation for the D9 THC chart were 120C at ¾ of one micron, and 200C at 20 microns. You can plug these points into the chart above and see how high the boil would be at room pressure which is 760,000 microns (the middle of your chart is corrected to 760 Torr = 760,000 microns). A theoretical perfect vacuum is zero microns.
From that chart you posted it is also possible mathematically to compute the enthralpy of evaporation. This number means very little to the daily refinement but it does offer clues about what is going on inside the rig when it runs and it helped me to figure out my horizontal distillation set up. I run the distillation pass horizontally via kugelrohr bulbs but use a heating mantle and stir bar instead of a formal oven. The temps run much lower to pull across distillate this way and the high numbers suggested this would work better than a traditional vertical distillation. It does. It is because you are not sinking all that heat into the uptake path in a horizontal mode.
I get wordy when I am stoned and I am disabled/retired and use the med for daily treatment…so I get stoned a lot lolz. Thanks for posting that chart. Folks would do well to study it if they intend to refine medicine.