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Invisiblewhiterasta
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dry MHRB extraction (mostly)
    #2205852 - 12/28/03 04:57 PM (12 years, 11 months ago)

Powder MHRB very fine and put into flask.Begin adding HCl gas and agitate for 1hr to expose the powder to the gas(slight pressure helps so a pressure flask is the best).Flush gas and defat using toluene and xylol. dry powder from solvents and place back into gassing flask.Begin anhydrous ammonia for 2hrs w/agitation.Flush flask and put powder into S/S container like is used for butane extractions of cannabis and using 4x volume butane/mhrb powder do a supercritical extraction of the freebase alkaloids.Carefully evaporate the butane and collect the freebase alkaloids.........in theory :wink:
WR :rasta:


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InvisibleJohn
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Re: dry MHRB extraction (mostly) [Re: whiterasta]
    #2205919 - 12/28/03 05:45 PM (12 years, 11 months ago)

know of anyone who has done this? I tried a similar supercritical extraction with ma huang bark and yield was shitty


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Invisiblewhiterasta
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Re: dry MHRB extraction (mostly) [Re: John]
    #2206139 - 12/28/03 07:39 PM (12 years, 11 months ago)

Maximizing pressure and time are the keys to better yeilds in a super-critical extraction.The standard blow through tek is grossly inefficient.
My frog may be documenting the tek with pics and yields,if mrs frog is willing to help.
WR:rasta:


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Offlinepsychopsilocyber
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Re: dry MHRB extraction (mostly) [Re: whiterasta]
    #2206247 - 12/28/03 08:37 PM (12 years, 11 months ago)

Sounds like something a phantom chemist would preform :wink: Good theory but most people don't know how to make/find/use HCL gas.


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Invisiblewhiterasta
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Re: dry MHRB extraction (mostly) [Re: psychopsilocyber]
    #2206292 - 12/28/03 09:21 PM (12 years, 11 months ago)

Boil liquid HCl and pass vapor through CaCl2 at least twice.Increase exposure to 3hs for this method.
Ammonia vapor will contain H2O but this will have little effect upon extraction.Just basify for a couple hrs and let air dry before loading extraction vessel.

Remember contact time and pressure are key so the extraction vessel needs to be:
1)S/S
2)able to contain liquid butane
3)Have a resevoir of equal volume connected above the extraction vessel
4)have a top bleed valve to insure it is filled with butane
5)a screened bottom valve
WR :rocket:


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InvisibleJohn
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Re: dry MHRB extraction (mostly) [Re: whiterasta]
    #2206398 - 12/28/03 10:58 PM (12 years, 11 months ago)

I did the butane extraction in a deep freezer so it would stay in the tube longer (used pvc though not SS)

how long should exposure be to dry HCl gas? making it by mixing 35% HCl acid with table salt (making a mud basically) in a three neck flask  and adding 98% H2SO4 dropwise and piping the gas through the mhrb powder. I've done this plenty of times to precipite out HCl crystals out of solvent so I know it makes dry HCl, I wanna give this a try if you think it'll work, it seems quick as hell :smile:


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Invisiblewhiterasta
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Re: dry MHRB extraction (mostly) [Re: John]
    #2206483 - 12/29/03 12:17 AM (12 years, 11 months ago)

Give it a few hrs to be sure of conversion.That is a good method of making dry gas you mentioned..Also defatting at higher temps speeds this process to a few hrs using alternating toluene and xylol with a 50/50 combo finish rinse.Buchner filter till near dry and finish in a baking dish.Keep basification temps low to prevent any possible amination by NH3OH(I don't know if it is a danger or not but better safe eh?).Just moistening powder with clear liquid ammonia until it fumes strongly but is not soaked will work also but it is best to dry it out before extraction.The key is if you cannot contain the butane for it to disolve the freebase yeilds will be low but Butane is an excellent non-polar solvent as good as diethyl or pet ether so contact or sheer volume are the keys to yields.
One can conceivably start in the AM and have a toke that afternoon/evening.With some tweaking of the final extraction should give comparable yields to DCM or Naphtha.Last hint, Prep a dessication chamber with CaCl2  that can be fixed with a top opening and let it reach dryness.Place butane filled vessel into chamber and let stand till butane is gone,the dessicant and closed chamber will prevent much of the condensation formed by evaporating low B.P. solvents.
This is a solid tek I have used in the lab for extracting dye  related intermediates from contaminates.
WR :rasta:


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Offlinefelixhigh
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Re: dry MHRB extraction (mostly) [Re: whiterasta]
    #2206586 - 12/29/03 01:34 AM (12 years, 11 months ago)

wow, this IS a radical sport!

FH


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