Would it be possible to extract caffeine from coffee beans in a similar manner to a STB DMT extraction?
thanks
walt
thanks
walt
caffeine extraction
« on: August 14, 2009, 05:33:45 AM »
Pages: 1
Topic: caffeine extraction (Read 98 times)
pureguava
- Larvae
- Posts: 5
heisenberg
- Dominant Queen
- Posts: 268
Re: caffeine extraction
« Reply #1 on: August 14, 2009, 05:38:53 AM »
First page on google. Try next time.
A standard a/b extraction would probably be the most feasible method.
A standard a/b extraction would probably be the most feasible method.
Caffeine extraction from Coffee.pdf
(22.17 kB - downloaded 16 times.)pureguava
- Larvae
- Posts: 5
Re: caffeine extraction
« Reply #2 on: August 14, 2009, 06:08:25 AM »
sorry and thank you
Vesp
- Administrator
- Foundress Queen
- Posts: 3,130
Re: caffeine extraction
« Reply #3 on: August 14, 2009, 06:20:21 AM »
I've done it using a strongly brewed cup of coffee, using either ethyl acetate or chloroform. Possibly tetrachloroethylene. It was a long time ago, but I remember getting little white spikes of caffeine with a small oily brown residue.
Pretty pointless, anhydrous caffiene can be bought at most bodybuilding health food stores. They are a gold mine.
Pretty pointless, anhydrous caffiene can be bought at most bodybuilding health food stores. They are a gold mine.
Mr.Murphy
- Guest
Re: caffeine extraction
« Reply #4 on: August 19, 2009, 04:24:52 PM »
@Heisenberg:
A/B-extraction is pointless in this case, as caffeine is neither considerably acidic nor basic.
@Vesp:
Extracting coffee to obtain caffeine is indeed pointless, as the price for pure caffeine (an uncontrolled and easily available substance!) is ridiculously low. But for the sake of chemical experimentation, I would recommend to make a crude extract first by using boiling water, followed by filtration, then extraction with chloroform. That should give caffeine at a purity that is suitable for recrystallisation or (preferred) sublimation, although the latter technique demands more equipment.
Peace! Murphy
A/B-extraction is pointless in this case, as caffeine is neither considerably acidic nor basic.
@Vesp:
Extracting coffee to obtain caffeine is indeed pointless, as the price for pure caffeine (an uncontrolled and easily available substance!) is ridiculously low. But for the sake of chemical experimentation, I would recommend to make a crude extract first by using boiling water, followed by filtration, then extraction with chloroform. That should give caffeine at a purity that is suitable for recrystallisation or (preferred) sublimation, although the latter technique demands more equipment.
Peace! Murphy
Pages: 1