EugeneOregon
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This is a work in progress but my new short path set up is working well enough to present here.
Chempub lists the boiling point of thc delta 9 as being 200C at 20 microns (VERY deep vacuum). On this run the sytem was clocking in at around 8-10 microns and the thc-9 was coming across well enough to load up and plug the short path head! lolz.
I checked online. Thin film evaporators publish on their site that their system operates between 100-300 microns. Others have posted distillation temps as high as 230C. This rig demonstrates and corraborates Pubchem insofar as 173C is more than adequate to pull a pure fraction if care is taken to pull a very deep vacuum. 173C is significantly below Pubchem's data but I have no way of knowing (yet) if this is azeotropic behavior, or if the deeper vacuum of 10 microns vs. the published 20 micron value is the reason. In any case keeping the temperatures as low as possible is my goal. Pubchem links reveal that thc delta 9 degrades with the application of heat. It lists no concerns for oxidation.
Chempub lists the boiling point of thc delta 9 as being 200C at 20 microns (VERY deep vacuum). On this run the sytem was clocking in at around 8-10 microns and the thc-9 was coming across well enough to load up and plug the short path head! lolz.
I checked online. Thin film evaporators publish on their site that their system operates between 100-300 microns. Others have posted distillation temps as high as 230C. This rig demonstrates and corraborates Pubchem insofar as 173C is more than adequate to pull a pure fraction if care is taken to pull a very deep vacuum. 173C is significantly below Pubchem's data but I have no way of knowing (yet) if this is azeotropic behavior, or if the deeper vacuum of 10 microns vs. the published 20 micron value is the reason. In any case keeping the temperatures as low as possible is my goal. Pubchem links reveal that thc delta 9 degrades with the application of heat. It lists no concerns for oxidation.