About
Community
Bad Ideas
Drugs
Ego
Erotica
Fringe
Society
Technology
register | bbs | search | rss | faq | about
meet up | add to del.icio.us | digg it
Go Back   Community > Science > Laboratory Tips
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

Reply
 
Thread Tools Display Modes
 #1 
Old 2003-08-28, 08:41
buzzkill buzzkill is offline
Regular
 
Default solvents

Hey, I'm extracting tonight, and in the interest of dumb q's, and simplicity, I got to wondering if there is a lumit to the amount of E that different solvents can have disolved into them? for example: Obviously 50ml of toluene won't disolve 1000 25mg pills, but where exactly where is that line betwene to much and too little. I don't want to be waisting e, but I'm shooting for the least amount of time for evaporation.

Any takers?

Thanx
 #2 
Old 2003-08-28, 08:50
kirby kirby is offline
Regular
 
Default Re: solvents

never used toluene to extract ephy from the pill mass--didnt think it was soluble in toluene before A/B---i use methanol--most people use alcohol of some form--anyway--minimum is about 600ml per oz for extracting--but dont stuff around here--wash pill mass at least 3 times--and a bit more is far better than not enough---its only another 5 mins evaporating in the end
 #3 
Old 2003-08-28, 09:20
buzzkill buzzkill is offline
Regular
 
Default Re: solvents

Hey, Thanx Again KIRBY.

You're a wealth of knowledge

Try this, I know it's dumb, but I was under the impression that all I realy had to do for extraction was let the pills soak, filter, and dry. Are you saying that I'm missing something in my method?
 #4 
Old 2003-08-28, 09:38
kirby kirby is offline
Regular
 
Default Re: solvents

yes you are---grind the pills to a fine dust with a coffee bean grinder---then a mineral turpentine soak for 12 hours--then the next washes depend on what pills you have--but for the sudafed 60mg pills--youd have 3 hot toluene washes--two cold acetone washes--then your extraction--then an A/B extraction
 #5 
Old 2003-08-28, 09:45
buzzkill buzzkill is offline
Regular
 
Default Re: solvents

Ok. So I got it right? Just wash the solvent/pill mixture repitedly.

More q's

Should I be using heated solvents for the washing, or is room temp cool?

And the wash is done with clean solvent, not the liquid left after filtering?
 #6 
Old 2003-08-28, 10:39
kirby kirby is offline
Regular
 
Default Re: solvents

look at www.rhodium.ws/ (http://www.rhodium.ws/) chemistry section----then go down to the ephedrine column and check out there cleaning methods
 
To the best of our knowledge, the text on this page may be freely reproduced and distributed.
 

totse.com certificate signatures
 
 
About | Community | Bad Ideas | Drugs | Ego | Erotica | Fringe | Society | Technology
Hot Topics