Sr. Verde's: Concentrate Corner

researchkitty

researchkitty

Well-Known Member
CO2 extractions arent common, but are creeping up more and more. I've tried a few that a friend "imported" from Colorado, and it was good oil, but didnt seem to have that "YEA I'M FUCKIN HIGH NOW!" felling that a similar sized BHO rip gave........ Could have been the oil, only had a few rips to sample, but that was my first impressions.....
 
pure.shifter

pure.shifter

Member
Ya your right.. they are showing up more and more. Out here where i'am, there selling BHO calling it CO2. So it's
hard to tell whats what unless you do the test yourself. As i read through the tread, i read a post by matt rize saying
your could "not" do Super Critical Fluid extraction at home. Not sure if the video above is proving that. But from the looks,
it does.

im not trying to sound like an asshole-im just trying to get the fact strait
 
Matt Rize

Matt Rize

Hashmaster
pure.shifter said:
Ya your right.. they are showing up more and more. Out here where i'am, there selling BHO calling it CO2. So it's
hard to tell whats what unless you do the test yourself. As i read through the tread, i read a post by matt rize saying
your could "not" do Super Critical Fluid extraction at home. Not sure if the video above is proving that. But from the looks,
it does.

im not trying to sound like an asshole-im just trying to get the fact strait
Click to expand...
that is subcritical CO2 (liquid phase, its in the name of the video), not super critical phase. look up the parameters for CO2 phase shifts. If they can get CO2 supercritical, they have a 1/4 million dollar machine to build that pressure and temperature. The yellow area represents super critical CO2 parameters.



If I run dry ice with my lighterfluid, that is subcritical CO2. But is that a CO2 extract? Not really. Is CO2 playing a role as a solvent in this situation? Im not even sure. I don't think the pressure or heat in the tube are high enough to yield liquid CO2. Meaning the dry ice is subliming and not playing a role as a solvent. And this (BHO run with dry ice) is what dispensaries often mislabel as CO2 extract.
 
pure.shifter

pure.shifter

Member
Ok with that said matt.. is it possible to extract the trichomes from the marijuana when the CO2 goes Super Critical(liquid)?
Not the "Super Critical Phase" your talking about. But the one seen in the video.

Have you seen or heard of this done?
 
pure.shifter

pure.shifter

Member
Sry dis-regard my last post. i misread yours at first. I believe the CO2 is acting like a solvent though, striping the limonene from the orange pills. They are extracting orange oil from shredded orange pills. Limonene is actually found in some marijuana. Also Pure Gold Oil from Tetra Labs claims there oil is 5% limonene.
http://www.tetralabs.com/puregold.php
 
pure.shifter

pure.shifter

Member
Here's another video explaining better. Read Description first. [video=youtube;PCW8Ohhqezk]http://www.youtube.com/watch?v=PCW8Ohhqezk[/video]
 
Sr. Verde

Sr. Verde

Well-Known Member
Matt Rize said:
just pass it over to magweedo, if anyone can do it... its him
[video=youtube;2Y7LVEc0lRA]http://www.youtube.com/watch?v=2Y7LVEc0lRA[/video]
Click to expand...
Loved the background on that... Chillin in front of the grow lab, thats how it should be :lol:.


& at oakley I must say I'm super impressed! Lots of delicious oil !
 
Matt Rize

Matt Rize

Hashmaster
pure.shifter said:
Sry dis-regard my last post. i misread yours at first. I believe the CO2 is acting like a solvent though, striping the limonene from the orange pills. They are extracting orange oil from shredded orange pills. Limonene is actually found in some marijuana. Also Pure Gold Oil from Tetra Labs claims there oil is 5% limonene.
http://www.tetralabs.com/puregold.php
Click to expand...
I think we agree. CO2 can act as a solvent for cannabis, fairly simple, but its subcritical liquid phase, like in the video. The devices from eden labs, those are designed for and only operate at subcritical CO2 liquid phase parameters, but everyone calls it supercritical anyways so they can charge more and sound fancy.
 
mendoganics

mendoganics

Member
pure.shifter

pure.shifter

Member
Matt Rize said:
I think we agree. CO2 can act as a solvent for cannabis, fairly simple, but its subcritical liquid phase, like in the video. The devices from eden labs, those are designed for and only operate at subcritical CO2 liquid phase parameters, but everyone calls it supercritical anyways so they can charge more and sound fancy.
Click to expand...
Im actually in the process of getting the material needed to try the process in the video at home.(with marijuana of course).
One more question i have for you matt before i get started. From reading some post i noticed you studied chemistry.
Do you have any doubt that when the CO2 enters the liquid phase, it wont pick up any cannabinoids/terpinoids?

The link below is to the "ehow" website stating how the process is achieved:

http://www.ehow.com/how_7640945_extract-limonene-dry-ice.html
Alos from other readings i've done, some claim another solvent is needed also during the extraction. If so can't "Limonene" be used as the second solvent?
It to is non-polar i believe.
 
Matt Rize

Matt Rize

Hashmaster
pure.shifter said:
Im actually in the process of getting the material needed to try the process in the video at home.(with marijuana of course).
One more question i have for you matt before i get started. From reading some post i noticed you studied chemistry.
Do you have any doubt that when the CO2 enters the liquid phase, it wont pick up any cannabinoids/terpinoids?

Alos from other readings i've done, some claim another solvent is needed also during the extraction. If so can't "Limonene" be used as the second solvent?
It to is non-polar i believe.
Click to expand...
Based on simple polarities, the CO2 in liquid form should dissolve the cannabinoids.
I assume adding another solvent with CO2 increases the yield and spectrum of compound dissolved in the solution.
Limonene is not a solvent in any real sense. I think its liquid at room temperature, but I think its slightly polar like many terpenoids.
 
pure.shifter

pure.shifter

Member
Matt Rize said:
Based on simple polarities, the CO2 in liquid form should dissolve the cannabinoids.
I assume adding another solvent with CO2 increases the yield and spectrum of compound dissolved in the solution.
Limonene is not a solvent in any real sense. I think its liquid at room temperature, but I think its slightly polar like many terpenoids.
Click to expand...
Ok thanks for your input. Maybe i wont use the co-solvent(limonene) with it. I was thinking it would be easier to remove the extracted cannabinoids/terpinoids if there was another solvent added, then remove the co-solvent by other processes.

Does anyone know any good CO2 forums with good advice?
 
Sr. Verde

Sr. Verde

Well-Known Member
Why does it say there are 46 pages on this thread when I can only access 45? :?

edit: OK yeah I totally missed all those posts on page 46 until I deleted all my cookies... Weird..
 
cannabineer

cannabineer

Ursus marijanus
Matt Rize said:
Based on simple polarities, the CO2 in liquid form should dissolve the cannabinoids.
I assume adding another solvent with CO2 increases the yield and spectrum of compound dissolved in the solution.
Limonene is not a solvent in any real sense. I think its liquid at room temperature, but I think its slightly polar like many terpenoids.
Click to expand...
Limonene is a pretty good solvent, but it is rather fragrant and high-boiling. It is being used in a variety of "safer" household goods, like degreasers and paint /varnish strippers. It is too nonvolatile for easy cannabis work imo. cn
 
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