Slightly acidic. I was just using strips so I don’t have the exact number but close to 6
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I’m super curious if this was also part of the reason on why it worked.
Back on the Bifenthrin train. Magsil, AC, B80 did nothing. going to try AA. if a water was worked what PH would you say was effective? Bifenthrin is a non polar oil. so my thoughts are basic to saponify it maybe. any thoughts?
Depends on what the material is. If it can crystalize you can seperate with the mother liquor. If thats not an option activated carbn at cold temp in methanol, buffer , winterize , filter, reclaim solvent , dissolve in heptane , l2l with buffer ie sodiumbicarbonate wash with brine then water, reclaim solvent, then have it tested . Not really worth the time at bench scale but once you get it dialed at scale it will pan out. Btw I Sprouted those seeds , got a bunch more on the way , the fresh is way better than dry to work with
There’s a few pesticides @AlexSiegel and his team and my team/projects discovered are incredibly hard/tough to remove in standard absorbents.
Unfortunately those cannabinoid fat molecules mesh/bind really well to some pesticides/herbicides and require specified resin/ion exchange/reverse phase resins to even attempts to purify the cannabinoids.
Usually teamed with UV-Vis detection systems and a tightly packed column to avoid any channeling and proper gradient collection.
Not something average cannabis laboratories can achieve. This is closer to what actual pharmaceutical processing sites offer, at this scale.
Usually using nasty non-polar solvents or co-eluted with polar solvent gradients (toluene, hexane, hexane, DCM, methanol, etc.)
You do not want to handle these processes unless you have adequate PPE, Mechanical ventilation, spill catch provisions, etc…
End of the day, it was never cost effective to put to scale production use for remediation.
Good luck!
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I don’t miss those days. There must be a method out there to remediate it fully from THC but I have only ever seen effective Bifenthrin remediation with crystallization. That is not very useful for someone with contaminated disti.
Bifenthrin wont come out with water alone but maybe adding something could effect the chemistry of the water-Bifenthrin interaction in a favorable way.
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Just for posterity…
Magsil PR is a rebranded Florisil PR, manufactured by EP Minerals, they provide a white paper on what contaminants are removed with their media. In the case of this topic, Bifenthrin isn’t on there—if you’ve read this far, you already know this
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You aren’t gonna get it out with a stainless column packed with magic powder, unfortunately.
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Bifenthrin’s molecular weight is 422 g/mol thc is 314g/mol and one of the biggest difference I can find in being able to separate the 2 of them. Polarity and distillation temp and pressure are far too alike to seperate conventionally But I have personally had positive results using adsorbents, however it comes with a decent % of loss. Membrane skids are not cheap but they are effective. Cromatography and chirality have potenrial but thats a deep rabbit hole and also not cheap.
Goodluck etohkid.
Sodium or magnesium cloride warm to hot saturation
I think you’d have better look trying to attach a carboxyl group to it if you’re doing it on a large-scale. Also not cheap
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