To be sure,there is no residual solvent.
you can check whether the texture will change,
if re-dissolved a bit and re-evaporated,
but this time on a steam bath.
To be sure,there is no residual solvent.
To be sure,
you can check whether the texture will change,
if re-dissolved a bit and re-evaporated,
but this time on a steam bath.
Try to apply freeze to a solution or solvent.
Pre-chilled "London" butane (250 ml / 139 g, $2.35) was sprayed into the extraction teapot through the lid port (white in brown lid on photo), at outside temperature +14C (57F).
The plant matter was floated and stirred in the butane during 10 minutes, no boiling was observed.
After that solution was coffee-filtered into the evaporation teapot (with glass handle on photo)
and was placed on the top of the coffeepot, suitable by diameter and shape, filled with a hot water as the double-decker to evape butane quicker.
After evaporation of butane is over the inner surface of the evaporation teapot is covered with a transparent film of a primary non-polar extract.
It is a concrete also known as BHO.
To take it from a teapot together with secondary polar re-extraction, the ethanol 96% was added into a teapot.
EtOH doesn't dissolve everything from BHO.
Butane dissolves some waxes and fats that is insoluble in ethanol while the good resin dissolves in EtOH.
Tiny undissolved flakes were coffee-filtered off the solution.
Would doing a second wash with ethanol help me out, or will it only benefit BHO made with butane?
(...)
When going on a trip, searched and found a good nickname for Amber and used it to pack for the trip,
in case if anyone have a question about what it is I'm taking. Nobody asked.
I prefer hexane for this tek. works great. tastes better IMHO. if you get a chance to use some hexane I recommend doing a run.
I use hexane regularly. How did you purge?
Air.