You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
When high pressure is applied to CO2, it becomes a liquid that is capable of working as a solvent, stripping away cannabinoids and essential oils from plant material. This process is called supercritical extraction and is the most common method of making hash oil using CO2 instead of a hydrocarbon solvent such as butane. CO2 extractions can take many of the same textures as BHO, but generally they tend to be more oily and less viscous.
@SamuraiSam , @herbivore21 - Hi guys, came across this article in a newsletter type email and then followed it to Chromatography today. I believe you need an account (free) with them to download in its entirety as it appears that the referenced tables are not included.
Its a bit over my head...