Originally Posted by WaterFarmFan
I watched a video from a cancer doctor that performed room temperature etoh extraction yielding a VERY dark green extract. He placed the volume out in the sun for an hour and it was virtually all gone. I bet you could simply place a flask on the windowsill if it is excessive. The little bit that I pick up seems to disappear quickly on its own with just some LED lighting in the lab space, and heat also seems to help also.
How are you distilling and purging the ethanol solution? If using glassware to distill, you really need to wash with a tiny bit of etoh at each step as there are lots of ways to lose yield with thin films sticking to everything.
I actually did this today when the sun finally decided to show itself here in Oregon. I delivered 4 liters of dark green ethanol-cannabinoid solution to 4 mason jars and placed in the sunlight for a couple of hours. Definitely helped to get some of the green out, but still hints of it. The solution is still pretty dark and shining a light on it I can see the red pigment present.
Any idea on how to remove this red pigment, or do you know what it is? I have tried using Oil Dry Diatomaceous Earth in a manner similar to how a Celite cake is made and pass the solution through a Buchner and qualitative filter paper, but didn't see much improvement in solution clarity.
I have considered preparing a mixture of 1 part activated carbon (peat based) and 9 parts Celite but funds are low at the moment....
I attached a before and after photo. One photo of the Green solution from the top down, another of the "Sun Bleached" solution from the front.