Hello and welcome to the Nexus!
Amazing to see someone from Afghanistan logging in here.
That was a huge excess of heptane to use for 100g bark and 700mL solution!! Proper newbie level stuff
There is
no need to evaporate 1 litre of heptane!
Firstly, it is incredibly wasteful.
Secondly, it's a huge fire or even explosion hazard (because the fact that you have to ask this question indicates a level of inexperience which may well include a lack of safety awareness).
Thirdly, you would be polluting your local environment.
Fourthly, you would be denying yourself the possibility of re-using the solvent.
Fifthly, the product from freeze precipitation is much purer than that from evaporation, typically.
And sixth, in relation to the last, evaporation inevitably leads to some dust landing in the container.
To recover DMT from an excessively large volume of non-polar solvent, one may use a procedure known as the
mini A/B.
This involves washing the solvent (i.e. heptane) with multiple
small (or small enough) volumes of dilute acetic acid (diluted white vinegar, for example).
The combined vinegar washes are then made alkaline with a sufficient quantity of base. This may be sufficient to precipitate curds of DMT which will harden in the refrigerator. These can then be filtered out - especially, perhaps, if you don't have a freezer.
Alternatively, or additionally, you may choose to recover the DMT with
small volumes of the previously washed heptane which may then be combined and placed into the freezer (in a closed container) for freeze precipitation.
Before using it to recover the DMT, you may want to clean up the heptane with a spoonful of anhydrous sodium carbonate after the vinegar wash. This removes traces of vinegar from the solvent. This is not absolutely necessary, as there should be an excess of base in the aqueous solution.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli