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tek for re x??
- Thread starter breeze225
- Start date
Well it is just the basic procedure - just place your material in a glass container and then add a little Heptane and heat your solution up until it is boiling. You will see that it may dissolve over time - add more Heptane if you think that the dissolvation process has come to an end.
Normally you would do this until everything has dissolved and by just adding tiny bits of solvent you should have a well saturated solution. If your Spice contains some major other compounds, then you will maybe experience brownish goo on the bottom of your glass.
Decant your Heptane and place it in a second Jar. Close that second jar and place it in the freezer - after some minutes you will see the solution become cloudy and when the solution is clear you will know that everything precipitated and sunk to the bottom of the jar. Then just collect the crystals by decanting the surfactant heptane.
You can also put the same Heptane in the first jar with the brown goo and heat it up again and repeat to make sure you get everything out.
And remember: Heptane will still hold at like 200 mg Spice for every 100 ml. So if you used 200 ml of Heptane and only recrystallized 500 mg of Spice, then it may be smart to evap the Naphtha a little further before placing it in the freezer.
Normally you would do this until everything has dissolved and by just adding tiny bits of solvent you should have a well saturated solution. If your Spice contains some major other compounds, then you will maybe experience brownish goo on the bottom of your glass.
Decant your Heptane and place it in a second Jar. Close that second jar and place it in the freezer - after some minutes you will see the solution become cloudy and when the solution is clear you will know that everything precipitated and sunk to the bottom of the jar. Then just collect the crystals by decanting the surfactant heptane.
You can also put the same Heptane in the first jar with the brown goo and heat it up again and repeat to make sure you get everything out.
And remember: Heptane will still hold at like 200 mg Spice for every 100 ml. So if you used 200 ml of Heptane and only recrystallized 500 mg of Spice, then it may be smart to evap the Naphtha a little further before placing it in the freezer.
ok sounds easy enough but just to be sure this sound right? I have a bunch of yellow dmt that's kinda clumpy not xtals so....
1- take yellow dmt put it in a small jar...
2- put heptane in a second small jar and place in a hot water bath...
3- pour heptane little by little until the dmt dissolves...
4- when it cools to room temp take out the heptane with a plastic syringe leaving behind any un dissolved material on bottom of jar.
5- take that heptane and put it into a glass dish and into freezer overnight
6- next day pour off excess heptane and dry then scrape...
Sound right?
1- take yellow dmt put it in a small jar...
2- put heptane in a second small jar and place in a hot water bath...
3- pour heptane little by little until the dmt dissolves...
4- when it cools to room temp take out the heptane with a plastic syringe leaving behind any un dissolved material on bottom of jar.
5- take that heptane and put it into a glass dish and into freezer overnight
6- next day pour off excess heptane and dry then scrape...
Sound right?
Correct but for the most efficient recrystallization you need your jar with dmt + heptane always near boiling temperature.
So it is not so useful to just heat the heptane in another jar and throw it in the original one, where it does not get heated. Because then it will cool down very fast, I guess already after 1 minute it will have 20 °C less and so on.
So heat the jar with the dmt in it, but only start heating when you applied the first portion of heptane.
But the rest is totally fine.
So it is not so useful to just heat the heptane in another jar and throw it in the original one, where it does not get heated. Because then it will cool down very fast, I guess already after 1 minute it will have 20 °C less and so on.
So heat the jar with the dmt in it, but only start heating when you applied the first portion of heptane.
But the rest is totally fine.
downwardsfromzero
Boundary condition
No. Take out the heptane while it's as hot as possible, and pre-heat your glass pasteur pipette 
/syringe by flushing through with clean, boiling heptane a few times immediately beforehand.
/syringe by flushing through with clean, boiling heptane a few times immediately beforehand.
pete666
Esteemed member
downwardsfromzero said:No. Take out the heptane while it's as hot as possible, and pre-heat your glass pasteur pipette
When you take the heptane when hot, it may be quite yellow. Isn't it better to let it cool to acceptable color (maybe to room temp), so it loses the yellow and then pour it off/move to another jar? Then repeat the same step with less heptane?