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Old 11-23-2017, 06:54 AM #1
Gtir
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Can I use a still instead of a roto

I thing this would cause the wax to de carb and also maybe convert to other that d9 cannabois like cbn etc, is that bad? Would this method work?
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Old 11-23-2017, 12:55 PM #2
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Originally Posted by Gtir View Post
I thing this would cause the wax to de carb and also maybe convert to other that d9 cannabois like cbn etc, is that bad? Would this method work?
Both a still and rotovape will work. The rotovape simply allows you to boil at lower temperature, so as to not decarboxylate the concentrate in the process.
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Old 11-23-2017, 09:09 PM #3
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Originally Posted by Gtir View Post
I thing this would cause the wax to de carb and also maybe convert to other that d9 cannabois like cbn etc, is that bad? Would this method work?
A rotovap and a simple distillation apparatus (still) perform the same function -- the removal of solvent under vacuum so as to not initiate thermal degradation of sensitive compounds. This allows the solvent to be recovered below the boiling point found at Standard Temperature and Pressure.

The advantage of a rotovap over a simple distillation apparatus is that a rotovap rotates the boiling flask in a water or oil bath to maximize solvent recovery by creating a thin layer in the rotating flask.

Decarboxylation shouldn't be an issue if you are running a vacuum and keeping your water bath temperature low.

I recommend buchi's 60-40-20 rule for guidance on the optimal vacuum setting (milibars) and temperature for best solvent recovery.

https://smah.uow.edu.au/content/grou.../uow093125.pdf
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Old 11-24-2017, 03:54 AM #4
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Originally Posted by c03rcion View Post
A rotovap and a simple distillation apparatus (still) perform the same function -- the removal of solvent under vacuum so as to not initiate thermal degradation of sensitive compounds. This allows the solvent to be recovered below the boiling point found at Standard Temperature and Pressure.

The advantage of a rotovap over a simple distillation apparatus is that a rotovap rotates the boiling flask in a water or oil bath to maximize solvent recovery by creating a thin layer in the rotating flask.

Decarboxylation shouldn't be an issue if you are running a vacuum and keeping your water bath temperature low.

I recommend buchi's 60-40-20 rule for guidance on the optimal vacuum setting (milibars) and temperature for best solvent recovery.

https://smah.uow.edu.au/content/grou.../uow093125.pdf
how sensitive is crude oil for the purpose of making distillate, do I need to bother running it under a vacuum?
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Old 11-24-2017, 11:18 AM #5
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Originally Posted by c03rcion View Post
A rotovap and a simple distillation apparatus (still) perform the same function -- the removal of solvent under vacuum so as to not initiate thermal degradation of sensitive compounds. This allows the solvent to be recovered below the boiling point found at Standard Temperature and Pressure.

The advantage of a rotovap over a simple distillation apparatus is that a rotovap rotates the boiling flask in a water or oil bath to maximize solvent recovery by creating a thin layer in the rotating flask.

Decarboxylation shouldn't be an issue if you are running a vacuum and keeping your water bath temperature low.

I recommend buchi's 60-40-20 rule for guidance on the optimal vacuum setting (milibars) and temperature for best solvent recovery.

https://smah.uow.edu.au/content/grou.../uow093125.pdf
Here is the test Jules did on the Heidolph rotovap, with parameters.

https://thealchemistresource.thealchem istresource.com/p/normal-0-false-false-false-en-us-x-none_22.html
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Old 11-24-2017, 11:19 AM #6
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Originally Posted by Gtir View Post
how sensitive is crude oil for the purpose of making distillate, do I need to bother running it under a vacuum?
It will end up decarboxylated anyway, so no harm there, but you may end up with more CBN.
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