I have some 3rd party tests out for pesticide on the isolate so I’ll know for sure soon. I was just looking to see what people think is going to be the outcome, or for anyone who has shared a similar experience. Thank you for the reply though, your insight is appreciated.
Try a small scale water wash at various pH. If it works at the small scale, a reactor is a small investment in regards to future preparedness for such events. Realistically you just need the cheapest reactor available to use as a large sep funnel.
Thank you for the reply, I also tried to a pH wash of our distillate. We diluted our oil 1:2 oil to heptane and did an acid wash followed by a base wash followed by a neutral salt wash then ran it over a Büchner funnel with Silica 60 loaded on it over a filter (loaded as a slurry). We have also sent that sample in for testing and will be getting the pesticide results for that soon as well. I will update this thread with our results, I am hoping for the best.
Have you ever tried a similar method with successful results?
I dont know how you intend to isolate intially, but what i suggest is that once you have your isolate you REcrystalize in ethyl acetate. Bifenazate should stick around in the mother liquor. Some mother liqour will be caught up in the crystal structure as it forms.
It will definitely dissolve in ethyl acetate, which means of you evaporate the solvent slowly you can cause crystals to form. Im not too sure about washing the isolate with ethyl acetate, if you did so it would need to be very very cold. Not worth it imo but maybe ln2 can be be used
Bifen you can do a LLE with ACN (acetonitrile) and Heptane as they aren’t miscible. The ACN will grab the Bifen.
Mix oil with ACN,
add equal part of heptane (enough to capture all of cannabinoids)…
dilute with RODI water — heptane is not miscible with water — this dissociates the cannabinoids from the ACN.
Discard and properly dispose of ACN/water layer.
Keep heptane/oil layer. Recover heptane, test oil
Problem Is that most people’s skill level to handle ACN is questionable and no residuals are acceptable because ACN converts to cyanide in the human body.
I haven’t tried but in theory high pH hydrolysis would work as well
At the very least you could use this as a protocol for disposal.
Your ACN/bifen/Water — swing pH to 9 or higher for 2 hours or whatever the time (have to double check if that’s isn’t at 50% steps or completed at 1.6hrs — check for UV décomp too you could add that in). That might make disposal easier or better
—I would look but “spoons”.