KOH Pseudoephedrine Extraction (Original procedure by U.F.)

p2e3r4f5e6c7t8 · Fri Jul 01, 2005 11:59 am

What modifacation to the festers cure would that bee ?????????? TC
And from what swip has read, The st8 to bee 3 method some of that crap still gets through, And theres 2 extra steps involved

The STBIII method doesn't seem very complicated:
Extract with Brine/Filter----------> And these are the steps swip is talking about.
Neutralize
Boil/Basify w/ Non-polar
Separate/Crystallize

Swip posted made a post on this at wet dreams and just waiting to hear from anyone that tried it ???????????.

hAzzBEEn · Fri Jul 01, 2005 6:32 pm

In the STBIII Thread, Geez mentioned something of that nature:

p2e3r4f5e6c7t8 · Tue Jul 05, 2005 11:27 am

Hey HaZZBeeNN, How are ya swimate,
Sswip has been doing alot of work when it comes down to weather the STR8 to B111 method is more effective than festers KOH method, But some how swip thinks that, The KOH method is going to bee more effective because it's still a Free Base thats geting created, And its still a boil involved its just 20 minuts longer thats all, Then with a couple of the GEZMISTER's style recrystalitions, Or why not just steam distill the free base then do a recrystalisation and that should produce prestine sudo.
Well that's some of swip's rambling's anyway so what do ya'll thinyk.

tina_craig · Wed Jul 06, 2005 9:54 pm

4x the KOH and 2x the alky

Add 1/2 the KOH at boiling
Add 1/4 the KOH after 20 minutes
Add remaining 1/4 after 20 minutes
Boil an additional 10 minutes.

The rest of the procedure is the same. Essentially 3 boils in one to handle layered gaaks. It works, using the original amounts gaak had gotten through, especially Orange-2.

Nothing has gotten through using STB3, last reaction, reaction fluid turned black upon basing but yields were fine and so was quality, so it was attributed to unknown elements in RDL.

Switc would actually like to try a KOH boil using Naptha as in the STB3, just to see what would happen.

Also, Festers modification involves taking the PSE from one end of the pH scale to the other, just like the STB3 method.

And STB3 is much easier than KOH boiling, IMHO. No smells, no gassing.

p2e3r4f5e6c7t8 · Thu Jul 07, 2005 11:56 am

I dont agree TC, LMOL ,There's more mixing shit involved

tina_craig · Fri Jul 08, 2005 11:00 pm

I will tell ya though, having done both methods, ALOT, the STB3 has given more success because until the amounts were altered for KOH boiling, OII was getting through.

All ya gotta mix is the brine solution and some basing solution, really its very, very easy and no obnoxious smells and no gassing. And yields are higher with STB3 at least in switc's extractions they have been. To each his own though. Anyway pills are getting harder to acquire (at least here) and I would shoot for higher yields as opposed to less mixing. 10% isn't much for a 10g extraction but its alot for 100 or 200g extraction.

Also, it saves one from doing a rex.

hAzzBEEn · Fri Jul 08, 2005 11:23 pm

p2e3r4f5e6c7t8, you could very well be right AFAIK. I think both are interesting. I just leaned toward the STBIII because of SWIM's repeated success with other VideoEditor extractions.

When you give it a run, I'd like to hear about the results. SWIM doesn't have much time for these things, anymore.

p2e3r4f5e6c7t8 · Mon Jul 11, 2005 11:01 am

Well swip is talkin about OZ pill's, And yep they are geting harder & harder to get, Plus fucking expensive.
But anyway, The other day when swip was doing the 91% ISO extraction he exausted the pill mass and then tasted the filter cake to see if there was any bitterness left, NONE, So then swip got a little bit of fillter cake and rubbed it between his fingers and it felt like a marshmelow sorta sticky type shit.
Even then swip tasted it again and no biterness.
Swip see's this as a good sign, Now swip is dreaming of the KOH boil and needs an answer before he dreams it.
QUESTION : Could 91% ethanol be used to compensate for the loss of ISO during the initial boil ??????????? hhhmmmmmmmmm
Anyway's HaZZZbee or TC what do ya think ??
Swip is dreaming of doing this with 3.6 gms of PE avalible just as a trial run, But a little help would bee nice,
How much more KOH

tina_craig · Thu Jul 14, 2005 10:11 pm

Switc was using 4x the KOH and 2x the alky. Any alchohol should do, just make sure the 9% water content is there as it is needed for the hydrolysis. Also, the extra KOH is added in portions to essentially do 3 boils in one sitting.

1/2 the total KOH is added right as the solution begins to boil. 1/4 the total amount 20 minutes later. The other 1/4 20 minutes after that and boil an additional 10-20 minutes. You will have alot of KOH in there but you will have very clean PSE as well. Double the alky is to help keep the KOH and PSE in solution.

p2e3r4f5e6c7t8 · Fri Jul 15, 2005 10:12 am

Well swip had 250ml of ISO @ 99.7% and the dick head only added 6ml of dh20 and wnt ahead with the KOH boil useing 8gms of it and boiled it for half an hour then let it cool enough to touch then put it in a sep funnel to seperate, But swip said there were no layers, All he noticed was that the KOH powder looked like little fluffy flakes floating to the bottom, And still no visible layer, So swip drianed the KOH of, (swip said that took ages) and then drained the KOH ISO and evaped it to complete dryness, Swip did notice a very small amount of KOH in the evep dish.
Now the thing is swip now has a little pile of white substance.
So could anyone help swip with some sugestions maybee ????????????????

tina_craig · Sat Jul 16, 2005 1:42 am

Not done.

250ml should have gotten 24.7ml of water added, how many grams of pills was swip trying to do? That is WAY TOO MUCH alky and not nearly enough KOH, sorry bubba start over.

It is prolly loaded with methacryllate polymers and OII gaak!!

Also, one needs to separate while hot. To know you have done it right you should have on oily bottom layer that can be any color from white to dark brown/orange.

Also, the multiple additions of KOH are important to take on the layered gaaks.

p2e3r4f5e6c7t8 · Mon Jul 18, 2005 9:38 am

Well the gaks are layerd alright, Swip addee 130ml of napatha and it dident even realy disolve, Then swip added nearly then same amount of h2o as napatha and now swip & some sodium bicarbonate and now there is a layer all right, And this is how it goes.
Top layer is white, 2nd layer is white paste looking with what looks like snot underneath it.
And last of all the water layer is only cloudy, with a little white on the bottom.
Is this worth swip tryin to fix it with a pikeled piper st8 2 B 3 or any sugestions please.

tina_craig · Tue Jul 19, 2005 11:51 pm

Evap everything, redissolve in alky, do the KOH boil again using recommended increase of reagents. Yields are gonna suck though due to mechanical losses. When switc changed the amounts it was done all in the same boil to help minimize mechanical losses. How much PSE was swip extracting? If not much it may be worth it just to scrap it.

Also, the naptha one added was hot, yes?

p2e3r4f5e6c7t8 · Wed Jul 20, 2005 9:38 am

3.600gms TC, Trial run