This came up the other day in another thread
im not sayin your wrong or that i disagree but...
could you explain what in weed would be water soluble but not soluble in alcohol?
cuz if it is soluble in alcohol, regardless of the water, it will be in the product. amiright?
PS sorry for being so damn longwinded in my response to your ? about BHO. also its better not to use PVC pipe, stainless steal turkey baster is the best bet for jerry riggin a BHO tube
doing minimal research i found this from erowid:
http://www.erowid.org/plants/cannabis/cannabis_chemistry2.shtml
In a previous version of this file, I recommended ethyl alcohol as the
menstruum (solvent) for the initial extraction. However, after further reading
and experimentation, I now recommend acetone instead of alcohol. THC's
solubility in acetone is, it would seem, much greater than with any other
solvent (except for petroleum ether, which we use in stage 2 to purify this
first-stage oil). The reason? Alcohols are too water soluble for the best
possible purity, and too many other non-psychoactive materials remain in the
finished oil. In the interest of brevity, and to save wear and tear on your
obedient typist's fingers, it's your own responsibility when reading the
following to substitute "acetone" wherever you see "alcohol" used.
from more research(if others can help update this list it would be great, I am finding this very time consuming); the list of compounds found in cannabis (some listed with soluability):
(-)-[delta 1]-3,4-trans-tetrahydrocannabinol (most active cannabinoid) = THC has a very low solubility in water, but good solubility polar solvents, acetone, alcohols
(-)-[delta 6]-3,4-trans-tetrahydrocannabinol= THC has a very low solubility in water, but good solubility in polar solvents, acetone, alcohols
tetrahydrocannabitriol (aka cannabitriol)
cannabidiolic acid
cannabidiol CBD= insoluble in water but soluble in acetone, petroleum distillates, alcohols.
cannabinol CBN (forms after plant dies)= soluble in acetone, petroleum distillates, alcohols, aqueous alkaline
THC acids A and B (inactive unless smoked)
Minor constituents:
cannabigerol
cannabigerolic acid
cannabichromene
cannabichromenic acid
cannabicyclol (aka cannabipinol)
cannabicyclolic acid
cannabicitran
cannabielsoic acids A and B
cannabinolic acid (neutral cannabinoid)
cannabichromanon
cannabifuran
dehydrocannabifuran
2-oxo-[delta 3]-tetrahydrocannabinol
cannabigerol monomethyl ether
cannabidiol monomethyl ether
cannabinol methyl ether
propylcannabidiol (aka cannabidivarol & cannabidivarin)
propylcannabinol (aka cannabivarol & cannabivarin)
propyl-[delta 1]-THC (aka [delta 1]-tetrahydrocannabivarol & tetrahydrocannabivarin)
propylcannabigerol
propylcannabicyclol
propylcannabichromene
methylcannabidiol (aka cannabidiorcol)
methylcannabinol (aka cannabiorcol)
methyl-[delta 1]-THC (aka [delta 1]-tetrahydrocannabiorcol)
[delta 1]-tetrahydrocannabivarolic acid
Nitrogen-containing compounds:
choline
trigonelline
muscarine
piperidine
N-(p-hydroxy-B-phenylethyl)-p-hydroxy-trans-cinnamide
neurine
L-proline
L-isoleucine betaine
hordenine
source:
http://www.erowid.org/plants/cannabis/cannabis_info2.shtml
http://www.erowid.org/psychoactives/faqs/faq_otc_solvents.shtml