LOL!
Melting = transition from the solid to liquid state
...Freezing = the same transition but in the opposite direction
Boiling = transition from the liquid to gaseous state
...Condensing = the same transition but in the opposite direction
Sublimation = transition from the solid to the gaseous state without passing through the liquid one.
Basic lesson over.
Now when it comes to smoking it seems that people are often underestimating this way of application when looking at the respective boiling points. We recently had the discussion if
methylphenidate-freebase could be smoked. I tried to demonstrate that this should indeed be possible by comparing the physical data with cocaine's, of which we know with
certainty that it can be smoked. Follow the above link for the full discussion, but in short here again the values:
Cocaine-freebase:
m.p. = 98 °C
b.p. = 187-188 °C @ 0.1 Torr
Methylphenidate-freebase:
m.p. = 74-75 °C
b.p. = 135-137 °C @ 0.6 mmHg
Dextromethorphan-freebase:
I found several conflicting melting points:
80 °C (J Pharm Sci 1962, 51, p.931)
109-113 °C (Clarke's Isolation and Identification of Drugs)
109.5-112.5 °C (Hager's Handbuch der Drogen und Arzneistoffe and USP 33-NF 28 )
126 °C (Int J Chem Kinetic 2008, 40(9), p.559)
...but the last one seems to be incorrectly attributed and rather belongs to the hydrobromide salt (says "Clarke's" again). 109-113 °C looks like the genuine value.
Dextromethorphan decomposes upon attempting to distill it, so the final answer is NO, it can't be smoked.
Peace! -
Murphy
