Maximum terps, the subtle flavors that were barely noticeable in flower are very obvious now. That’s the biggest difference that I’ve noticed between DME and tane, DME pulls all the flavor. Leftover biomass smells like hay, zero cannabis smells left even if you crush the entire runs worth of spent material at once trying to find a smell. Recovery at 75, purge was room temperature until it solidified then I ran up to 80-85°F.
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Strange. Wouldn’t think it would be that terpy (just based on the texture)…
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Would be cool to extract with a dme butane blend
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I didn’t run super cold, so it picked up more crud than it could have. I don’t even know what temperature DME rejects waxes and such, gonna have to do a series of experiments at progressively colder temperatures and compare test results. Might pick up a dewax column and try it that way instead, just compare what’s in the filter paper from each run. Having to figure all this out is tickling my nerd bone to the max, appreciate the conversations in here because it gives me a lot of perspective.
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Would be interesting to see if you just ran it like butane (di chilled everything) how it would come out.
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R-510A is isobutane DME mix and R511A is a propane DME mix. There’s a bunch of other new mixes of butane/iso/propane/DME refrigerants that aren’t on the R list yet but going through testing and certification.
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I have a feeling if ran too cold he won’t pick up thc
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Reminds me of the terp issues of r134a
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U should sell rebranded shop towels and call em terp tissues (sorry 4 thumpin)
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Maybe not, it’s got a very low boiling point (-12F/-26C) and melting point (-223F/-142C) so I would imagine that temperature would be lower than butane. Terpene rejection would likely happen before THC rejection.
@Pupparoo that’s my plan, rest the solvent tank in DI until it’s super cold then (hopefully) push with solvent vapor.
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Looks like the solvent had no trouble at all leaving the extract. How long did you purge to reach that consistency?
I wonder if you’re also picking up sugars with the dme, how does it leave a nail looking?
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That was about 38 hours.
I’m using an e-nail set at 550 and it leaves a dark puddle that’s fairly thin viscosity. I’m not entirely sure what’s leftover in the banger, if it’s wax or sugar.
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Sugar will carbonize and puff up if you let it bake long enough.
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DME is semi-polar so it picks up polar terps that the completely non-polar butane leaves behind.
It is a very cool solvent, i would love to scale it up
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@Rowan I think it may find a permanent place in the extraction space once more experiments are finished and the corresponding data is analyzed.
I was checking the molar ratios between DME and butane today and found something pretty cool. 10 lbs of butane is 78.2 mols, 8 lbs of DME is 78.9 mols. You don’t need to soak with DME either, running straight through is getting me 32%+ yields.
So the extraction process happens faster since you don’t soak. The recovery process also needs less time, even though each lb of DME and tane requires roughly the same energy for evaporation, because solvent mass is 20% lower.
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I wonder if the difference in the intermolecular forces between the solvent and the solute make a difference for the rate at which solvent can leave the extract.
Like I wonder if dme, having a polar structure, would mean it has more or less of an attraction to the solute versus an alkane. And whether that would make any meaningful difference in the rate at which you can fully purge an extract.
@Franklin a lot of the dme boys have claimed it purges it self/very easy to get ppms below the acceptable level. i would like to try 40% n-butane, 25% iso-butane, 25% propane, 10% dme or 40% n-butane, 20% iso-butane, 20% propane, 20% dme or 40% n-butane, 20% iso-butane, 30% propane, 10% dme.
who can help produce these solvent mixtures for meh
Any idea of water soluble compounds coming with it?
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Yeah, the FDA even says it’s extremely easy to get to 0 ppm. I added the generally regarded as safe classification notice number up top with a couple PDFs on it’s use in food extracts.
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