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Author Topic: Amphetamine Vaccumdestillation Questions  (Read 262 times)

ppanik

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Amphetamine Vaccumdestillation Questions
« on: October 26, 2012, 06:53:01 AM »
Hello,

I dream of a vacuum destillation, for my amphetamine freebase.
But i have some questions.

1. My Vacuumpump max. is 150mBar
is this enough ?

The freebase boilingpoint is in normal atmosphere 200-203°C

2. What is the bp on 150mBar ?

3.  in which t temperature goes amphetamine damaged ?


I think i must go with the temperatur about ~150°C with my vacuumsource, is this to high
decompose the amphetamine at temperature higher than ~120°C ?

(sorry again for my bad english, now topic because  i found nothing else here)
thx
« Last Edit: October 26, 2012, 07:07:28 AM by ppanik »

ppanik

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Re: Amphetamine Vaccumdestillation Questions
« Reply #1 on: October 26, 2012, 02:44:44 PM »
ok thank you, the poiling point i get with the --->
http://www.erowid.org/archive/rhodium/chemistry/equipment/nomograph.html
nomograph on erowid


But the other question, is ~140°C to hot for the amphetamine freebase ?
Before the good freebase decompose ?

« Last Edit: October 26, 2012, 03:52:06 PM by java »

Wizard X

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Re: Amphetamine Vaccumdestillation Questions
« Reply #2 on: October 27, 2012, 12:40:02 AM »
I have answered your question at the Collective and also understand this http://127.0.0.1/talk/index.php/topic,3328.msg33705.html#msg33705
Albert Einstein - "Great ideas often receive violent opposition from mediocre minds."

ppanik

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Re: Amphetamine Vaccumdestillation Questions
« Reply #3 on: October 27, 2012, 02:59:25 AM »
hello,
thank you ! I think i have understand this, but my other question is
Is 150°C (about 140°C at 150mbar ~ bp amphetamine freebase) to high for the substance ?
I will not that it decompose.

best regards

mildronate

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Re: Amphetamine Vaccumdestillation Questions
« Reply #4 on: October 27, 2012, 06:47:27 PM »
You also need argon or nitrogen to my mind there.

ppanik

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Re: Amphetamine Vaccumdestillation Questions
« Reply #5 on: October 27, 2012, 09:48:32 PM »
this is me new .. you have a writing about this ?

vacuumdestillation normaly like this -->



the most important question for me is furthermore, destroy i the amphetamin by a
temperature about  150°C ?   

ppanik

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Re: Amphetamine Vaccumdestillation Questions
« Reply #6 on: October 28, 2012, 02:16:01 PM »
Quote from: mildronate on October 27, 2012, 06:47:27 PM
You also need argon or nitrogen to my mind there.

why dont need it by a methamphetamin freebase destillation ? Why by amphetamin ?
ohh my god, this is harder then the reduction process :/ I do not understand this

(is here a german speaking person !?? I need help please !)

Wizard X

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Distillation
« Reply #7 on: October 29, 2012, 12:51:39 AM »
Simple Distillation is done with organic compounds at boiling points below, or up to 150 oC. Vacuum Distillation is applied to organic compounds WITH boiling points ABOVE 150 oC.
https://www.youtube.com/watch?v=GtuMlWMajtw
https://www.youtube.com/watch?v=mn-u-7fRQv4

Vacuum Distillation of benzalhehyde. Note there is NO capillary inlet vacuum regulation tube, thus NO air/O2.

https://www.youtube.com/watch?v=_pdclDk30lE
https://www.youtube.com/watch?v=hfw_jx_zQFw
https://www.youtube.com/watch?v=1H0AV9XmMU8
https://www.youtube.com/watch?v=GCO65SzYtLU

Notice the apparatus in this video: High vacuum distillation of Diglyme (Diethylene glycol dimethyl ether) https://www.youtube.com/watch?v=W9hdUSDca2A

Fractional Distillation is used with organic compounds with boiling points of 25 oC, or less, difference between compounds. Fractional Vacuum Distillation is used with organic compounds with boiling points of 25 oC, or less, that decompose near their boiling points. https://www.youtube.com/watch?v=0x2-8dedmE4
Albert Einstein - "Great ideas often receive violent opposition from mediocre minds."

Doc B

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Re: Amphetamine Vaccumdestillation Questions
« Reply #8 on: October 30, 2012, 03:14:37 PM »
Quote from: ppanik on October 28, 2012, 02:16:01 PM
(is here a german speaking person !?? I need help please !)

Yes, PM me what you'd like translated.

Doc B

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Re: Amphetamine Vaccumdestillation Questions
« Reply #9 on: November 01, 2012, 05:11:22 PM »
EN
For steam distillation of the product after such a reaction... Maintain boiling flask at 100'C with excess water. In the vapor that comes over will contain all the volatile content and all your product on the top. For vacuum distillation temperature is set depending upon the negative pressure of the vacuum. The links given previously ??in answer to your question show how to calculate the temperature for whatever you vacuum pressure may be.

DE
Mit Wasserdampfdestillation der Produkts, nach einer solchen Reaktion, auf 100'C pflegen im Siedekolben. Im der sollten das dampf containg alle flüchtigen Inhalte und alle Sie produkt auf dem kopf.
Vakuumdestillation Temperatur wird auf den Unterdruck der Vakuum erhält abhänge. Die Links in Antwort auf Ihre Frage im Forum zur Verfügung gestellt zeigen, wie man die Temperatur berechnen.

mildronate

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Re: Amphetamine Vaccumdestillation Questions
« Reply #10 on: November 02, 2012, 10:55:27 AM »
First you need good fume cup board, nitrogen, Claisen adapter, round bottom, liebig cooler, heating mantel, nitrogen or argon (or base will be red) insted wulf flash you can use bunzen flash. Its dangerous to destill it in large amounts. Also need some washin flash to catch amine before vacum pump, be very carefull! Steam destill is more complicated, but better also need inert gas.

Doc B

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Re: Amphetamine Vaccumdestillation Questions
« Reply #11 on: November 03, 2012, 07:25:23 PM »
Quote from: mildronate on November 02, 2012, 10:55:27 AM
Steam destill is more complicated, but better also need inert gas.

Can you please explain why steam distillation would be more complicated?

Thanks

carl_nnabis

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Re: Amphetamine Vaccumdestillation Questions
« Reply #12 on: November 05, 2012, 05:14:08 PM »
I always used a three neck rbf instead of a woulffs bottle.
"It's like the drug trip I saw when I was on that drug trip!"

coincoin

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Re: Amphetamine Vaccumdestillation Questions
« Reply #13 on: December 18, 2012, 09:42:20 PM »
and what would cause a vacuum distillation to be slower than usual ?
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