200 proof non-denatured alcohol winterized single solvent extraction

[SnapsProvolone]

i dont like the idea of using butane, its very dangerous to ingest

The MSDS seems to overlook this detail. :\

 

[SnapsProvolone]

Imo, butane equals better terpene extraction coupled with lower temp / easier purge that also helps retain extracted terpenes.

 

[Blunter the kid]

We dont use acetone, its bad for you. Much worse for you, than the other solvents typically suggested and the production is dirty
All acetone is dirty, even if just slightly. And many of the contaminants have a quite high boiling point-higher than thc
And no I don't feel like fixing that link, why does copy paste quotes do that.
"Acetone is produced directly or indirectly from propylene. Approximately 83% of acetone is produced via the cumene process, as a result, acetone production is tied to phenol production. In the cumene process, benzene is alkylated with propylene to produce cumene, which is oxidized by air to produce phenol and acetone"
http://www.chromatographyonline.com/lcgc/article/articleDetail.jsp?id=666757&sk=&date=& &pageID=2
List of 99% or better acetone analysis 21 brands

"All 21 acetone sources were found to contain four of the common acetone impurities expected; diacetone alcohol (2-pentanone,4-hydroxy-4-methyl-), mesityl oxide (3-penten-2-one,4-methyl-), phorone (2,5-heptadien-4-one,2,6-dimethyl-) and phenol"

"A large number and broad range of different chemical impurities were found, dependent upon the acetone source and production method. These chemical impurities ranged in complexity from simple organic acids, alkanes and olefins, to a variety of substituted benzyl compounds (to highlight just a few)."

As is the case with other solvents, the impure acetone can be distilled to yield clean acetone free of ketones, olefins, and phenol.
If if still contains impurities, adsorption could be used to remove them.

Imo, butane equals better terpene extraction coupled with lower temp / easier purge that also helps retain extracted terpenes.

I think it just seems that way because butane picks up a lot of waxes that could trap and hold terpenes in the same way it would if you were to whip it while there's still butane inside of the extract. Ethanol will extract more terpenes than butane in the first place but may lose more terpenes over the purge.