R134a hemp and cannabis extraction advice and comments

My biggest question is, will combining a hydrofluorocarbon with a hydrocarbon contaminate the hydrocarbon indefinitely? Maybe some sort of unbreakable azeotrope or even a chemical conversion…

I don’t have experience using refrigerant for cannabis extraction, but I have worked in a plant that used it to remove mineral oil from polymer based fiber post spin. We ran through activated carbon beds to strip out the bulk oil and then went into distillation for final purification of the solvent. The only chemical we ever ran into issues with was a deliberate introduction of bleach. The bleach transferred through the distillation process and carried over into the solvent preheaters where it underwent a chemical reaction and became extremely corrosive (most likely chloride stress corrosion cracking) to our stainless piping. We first noticed the problem when we began developing pinhole leaks at stainless weld joints, and in the end replaced hundreds of thousands of dollars of piping and condenser end bells.

Like I said, not a chemist, so I’m not sure if any of that info was helpful, but I hope it was at least interesting.

Hi All,
We are PBX :LABS here , happy to advise and clear any misconceptions about Comerg/PBX technology, its superiority and it being the future of extraction!

Any questions you have, we are happy to answer!

We rip 100% TERP CONCENTRATE. Happy to show you the elated farmer’s results!
NO additives or suspension chemicals!

where are these results and why does it look like 3-4 different accounts trying to say this is the future yet no residual or heavy metal reports

Show current full panels. Have anyone purchased the machines or just watch them be run at their facility

Is the acetone and stuff a result of the freon? Or is there additional solvents? What do you fellow future4200ers think?

Or even:
“If you’re dumb enough to buy it then we are bold enough to sell it.”

From working under similar ownership I can attest to that level of beurocracy that even sometimes can get in the way of good production. Story of my life. puff puff then passes the blunt

After reading the whole thread I really am curious as to how selective R134a seems to be against THCa such that I could use R134a to maayybee crash out THCa in a liq-liq solvent crash with an alkane (butane or whichever is more non-polar).
Also, using R134a for sweeping off terps before doing a shatter run seems very useful though I hear propane is already used for this purpose as well as warm N2.

According to Wikipedia, one of the metabolites of Isopropanol is Acetone. I’m not versed on what conditions would create such metabolites but seems to me that if you had isoproyl alcohol come in contact with the crude then I would expect that’s where you got the Acetone from…perhaps the methanol too depending on how pure the isopropyl alcohol is that was used.

I hear people use sub critical c02 for terp collecting/terp chasing. Though I also hear you have have your system pretty well dialed in though to get that down.

yeah ive seen a video in a cloosed loop group on fb, though there was no data to prove anything so no way to verify :man_shrugging:

A couple of months late, sorry. So 134a is miscible with lower alcohols, ketones, chlorinated solvents. I’m going to search through my files for something more specific.
Tech sheet: https://www.chemours.com/en-/media/files/propellants/freon-134a-technical-information.pdf

not happening in australia.

you need a refrigeration license to use it here even though it has such a low carbon footprint
and is nearly 0 ozone depletion.

once our government has something it does not give it back.

massive fines for importation too unless already in an air conditioner below a set size

are you working with DEVEX machine? CryoEx 400?

Just going to chime in and say the worst terps I’ve ever had (and I mean the worst) were extracted with R134a. The lab didn’t even bother running them they smelled so bad.

Of course, that could have been an incompetent extractor or piss-poor starting material. But they did in fact smell like piss. This is my only experience with this solvent. I think it’s a shill product intended to profit off of wannabe extractors and/or people who don’t know where to get butane.

My experience is similar. R134a extracted a bunch of extra smells and colors

I’m not worried about color on terpenes, personally, but these definitely were some of the darkest I’ve seen. I think that “water clear” does not represent quality in the slightest. If anything, the pale yellow terpenes with a hint of cloud have been some of the best I’ve had. I know that seems ass-backwards but I think we are all trying to over refine terpenes to be clear to look clean.

These were gold-amber which again some of the best terps I’ve had were darker. I think when we try to pull all of these other impurities like waxes and pigments we are one-by-one also removing more and more groups of aromatic compounds. For quite some time I’ve had a crazy theory that cloudy terps are better because we’re still seeing a lot of the water solubles left behind. At 5% terpenes it’s not going to affect the clarity of the oil in my experience.

R134a definitely had a really nasty grass smell to them. Reminded me of hemp that didn’t fully dry and was left in a tote for a year or 6.

most halogenated solvents pull more than normal alkanes.

there is no reason to thing R134a will be any different.

I would expect if to be much like DCM or chloroform
Chloroform is standard for extracting chlorophyll
http://sci-hub.tw/https://onlinelibrary.wiley.com/doi/10.1111/j.1749-7345.1988.tb01043.x

the benefit of these other halogenated solvents over your aircon gas is that you can easily
reuse them

might have benefit an entrainer in LPG solvent systems

I personally would not use halogenated solvents for human consumption.

I like the idea of using heptane as many here do as its relatively safe if compared
to other non polar solvents.

stay away from hexane it has been known to cause problems in the long term health of drug cooks
who breath it.

to add to that I don’t think pentane is to great for you over time either.

It’s worth mentioning that r134a is a CFC being phased out of many industries by HFCs and newer HFOs because CFCs are OZONE DEPLETING CHEMICALS. So just use other solvents. you want your cannabis to put a whole in your reality, not the ozone.

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