You have to wash it by dry (without any % of water) cold acetone to pure white. Then, you can vacuum filter it and place in your foodbox into Vacuum desiccator or another chamber with vacuum.
You have to wash it by dry (without any % of water) cold acetone to pure white. Then, you can vacuum filter it and place in your foodbox into Vacuum desiccator or another chamber with vacuum.
Add a saturation amount of common table salt (NaCl) to the water extraction, because it has a higher affinity for water the last load of amine molecules get pushed out of solution and will enter the non-polar layer.
This is the only part which i didn`t understand. If you push the Amine from the IPA to the aqueous layer then separate it again by steam, it seems like some extra steps and reagents used when the bulk of the Amine is already in the IPA, why not just simple distill it off together with the extracts? What is the upside of this?I know Ciphir, normally after conversion of the nitro to amine, adds glacial acetic acid until pH=4 to push the amine into the aqueous layer (any fizzing is the quenching of any excess NaBH4, use less next time). Strip off the IPA up to about 97C, then basify to pH=11 with NaOH, now steam distil with a wall paper steamer connected to an inlet into centre of reaction vessel.
Yes. Also, you can wash with dry IPA as well. Acetone evaporates faster.
Hi,
Did my second attempt today, and it went much smoother this time.
View attachment 7353
As you can see in the picture,
To the left you have the "waterlayer" after extraction with NaOH 25%, and to the right you have the amphetamine-oil, freebase, a-oil, what ever you want to call it.
In the waterlyer flask you can see about 5ml of A-oil that I could not extract, I mixed the waterlayer with IPA and extracted the ipa layer, unfortunetly my home made distiller did not work, too many joints to grease and to much hustle, in my opinion it's not worth the extra effort for a few extra ml.
I will need to invest in a rotovap later.
The amphetamine-oil was cleaned three times through buchner funnel and clean filters each time.
Let me know what you think.
Best Regards
Hi,
Did my second attempt today, and it went much smoother this time.
View attachment 7353
As you can see in the picture,
To the left you have the "waterlayer" after extraction with NaOH 25%, and to the right you have the amphetamine-oil, freebase, a-oil, what ever you want to call it.
In the waterlyer flask you can see about 5ml of A-oil that I could not extract, I mixed the waterlayer with IPA and extracted the ipa layer, unfortunetly my home made distiller did not work, too many joints to grease and to much hustle, in my opinion it's not worth the extra effort for a few extra ml.
I will need to invest in a rotovap later.
The amphetamine-oil was cleaned three times through buchner funnel and clean filters each time.
Let me know what you think.
Best Regards
Very nice How big are your batch? And under how long time are you adding the P2NP for, to keep the temp under 60c ?
Best Regards
I am currently doing batches of 200g of P2nP.
I have quite good cooling method so my temperature never exceeds 47celsius.
It take 1h to add the whole portion of 200g.
Once you add the P2nP the reaction takes a little while to occur the first time, and it starts to foam, during foaming. Don't add more P2nP! Wait until the foam settles and you can see 60% foam and 40% liquid, that is the "soft spot" to add another portion.
it until the foam settles and you can see 60% foam and 40% liquid, that is the "soft spot" to add another portion.
hi;
what about the AIluminium amalgam ? you prepare one for 200gr or 400gr?
I am currently doing batches of 200g of P2nP.
I have quite good cooling method so my temperature never exceeds 47celsius.
It take 1h to add the whole portion of 200g.
Once you add the P2nP the reaction takes a little while to occur the first time, and it starts to foam, during foaming. Don't add more P2nP! Wait until the foam settles and you can see 60% foam and 40% liquid, that is the "soft spot" to add another portion.
Would this have an negative effect on the amphetamine oil?
It is impossible. Was your flask closed in the freezer? Have you added any desiccants before freezer?
Yes, I had it in my roundbottomflask first and closed the intake with a lid while I had it in the freezer.
No, no desiccants have been used.
Our team brings together the best specialists from different fields.
We are ready to share our experience, discuss difficult issues and find new solutions.
Connect notifications to always stay in touch with the forum!
The BB Forum team is looking for cooperation: