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

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 #1 
Old 2003-07-28, 22:20
Atome Atome is offline
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Default Ephedrine base extraction with another NP

Hi,

can one extract the base with another product that chloroform ???

exemple with Toluene, naphta or other ???



Simple process extraction ephedrine base.

Ephedrine is extracted with cold benzene in the presence of diluted sodium carbonate. The benzene extract is extracted with dilute hydrochloric acid and the acid solution of the alkaloids clarified. After adding enough solid potassium carbonate to the acid solution, the alkaloids are extracted with chloroform. This solution is concentrated, dried over sodium sulfate, and evaporated to dryness. Ephedrine has been separated from pseudo-ephedrine by means of the oxalate, the ephedrine salt being much less soluble in cold water. Ephedrine can be purified by means of steam distillation.
 #2 
Old 2003-07-29, 00:03
Atome Atome is offline
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Default Re: Ephedrine base extraction with another NP

The output of ephedrine can be poor ???
 #3 
Old 2003-07-29, 04:00
morgan morgan is offline
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Default Re: Ephedrine base extraction with another NP

you appear to be talking about extracting ephedrine from ephreda--try www.ephedra.demon.nl/stories/chemical.htm (http://www.ephedra.demon.nl/stories/chemical.htm)
 #4 
Old 2003-07-29, 07:20
Atome Atome is offline
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Default Re: Ephedrine base extraction with another NP

yes is well that but I want to know if I can replace the cloroforme by another NP?
 #5 
Old 2003-07-29, 20:17
Smellium Smellium is offline
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Default Re: Ephedrine base extraction with another NP

quote:Originally posted by Atome:

yes is well that but I want to know if I can replace the cloroforme by another NP?

I don't know why you'd use chloroform, and non-polar solvents will not effective remove anything from a pill but the gov't denaturants.

EXTRACTION PROCEDURE:

Mix isopropyl alcohol(91 or 99%) with naphtha 50/50 and dry both solvents thoroughly with baked epsoms salts. Boil pills with this solution & remove from heat. Let sit for a while (30 to 60 minutes or more) Separate this solution from the rest of the pillstock & boil to 105 degrees celcius. At that time the pseudo will crash out of the naphtha & you can filter it with a #6 coffee filter in a 2 liter tea pitcher. Repeat until you've gotten 90% or better out. Each box of pills (48 60's or 96 30's) SHOULD net you 2.88g of pseudo for reference sake. BTW, the 120s only net you 2.4g.



This method is a modified version of VideoEditor's Straight to E.
 #6 
Old 2003-07-30, 14:56
Atome Atome is offline
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Default Re: Ephedrine base extraction with another NP

Oh yes for extraction pseudoephedrine!

is a good process !

or i speak of extraction to come herbal ephedra at the moment extract the base !
 #7 
Old 2003-07-30, 19:51
morgan morgan is offline
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Default Re: Ephedrine base extraction with another NP

i use diggers methylated spirits95% to draw the eph out of the pill base--methanol works well
 #8 
Old 2003-08-01, 07:26
morgan morgan is offline
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Default Re: Ephedrine base extraction with another NP

you appear to wish to extract the alkaloids from the ephedra plant--try reading this site http://www.ephreda.demon.nl/stories/chemical.htm
 
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