Example of isomer separation for Meth

btcboss2022

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I forgot to clarify that to avoid long discussions sorry hahaha

L-tartaric acid CAS 87-69-4
 

花谢花开

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Hello, master, do you need to heat it during this period?
 

btcboss2022

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I never did it, it's an exothermic process itself. Thanks.
 

FredDurst

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btcboss2022 Do you recycle the L-Meth again the get a higher yield as in this diagram? :

ULfYPV72vc
 
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Mr Good Cat

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Is there any detailed description of this process? Is it the same for MDMA?
 

FredDurst

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This diagram was the only bit of info I have found on this process. It is from a European law enforcement report explaining the different methods mostly found in EU. It didn't go into much detail.

Why would you need to separate isomers of MDMA?
 

Mr Good Cat

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I love to resolve difficult questions. And it looks MDMA isomers are different from meth.
 

Jordan Belfort

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Putting freebase back in a new reaction does the same
 
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btcboss2022

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Honestly I never used that and I dont know how it works I should study it but does exactly the same separating isomers or turning L-meth racemic ?
Because goes from clear to cloudy dont means anything specific could be for other reasons.
 

magdagessler

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Very nice and simple explanation. Thanks
 

wael gano

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Good job great effort
I think it is better to add a nonpolar solvent and extract the nonpolar D base, since after alkalinizing the water, you collect the nonpolar base. Liquid/liquid extraction.
 

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So you don't have to divide isomers with tartaric acid, if I cleaned the material after the reaction with toulene, a non-polar solvent ???
 

Candyshop

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However, is it always necessary to separate the isomers in some way?????
 

Pulser

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@btcboss2022
What are your ratios for 1kg base?

tartaric/base/water
700g/1000g/1400ml?
 

btcboss2022

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Yes
 
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Pulser

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Running a small batch.
70g tartaric (CAS 87-69-4)
140ml water
100g base.

Doesnt seem to form an l tartaric adduct.
 

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btcboss2022

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Mix tartaric with water once dissolved add 100ml of freebase while stirring powerful some time if it don't works means that any of your reagents is not in good conditions anyway leave it 24 hours and check it later.
 

Vince

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Interesting process nigger, and beautiful reactor. Keep it up!
 

花谢花开

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Excuse me, liquid methamphetamine, do you not do distillation and split it directly? Will it affect the purity of the yield? For example, 10 grams after the same 15g distillation or 15 grams without distillation, which one will have a little more net weight? Can you answer it?
Excuse me, liquid methamphetamine, do you not do distillation and split it directly? Will it affect the purity of the yield? For example, 10 grams after the same 15g distillation or 15 grams without distillation, which one will have a little more net weight? Can you answer it?
 

btcboss2022

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No I dont distill it I make an acid base washing using 2 different solvents in the acid stage.
Possibly it could affects yield but in my experience is a very small amount and the final stuff has the same purity and the same cleaning level.
Personally the effort of steam distillation is not a profitable task.
Thanks.
P6lJVDhgCY
AXqfR5K9mM
 
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花谢花开

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Thank you for your timely answer. It's a pleasure to get a response. The picture looks really beautiful. It should be better to make a vacuum distillation. Try both vacuum distillation and non-distillation.
 

btcboss2022

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It's not distillated but it's made an acid base washing using 2 different solvents in the acid stage
 

花谢花开

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What kind of pickling do you use? How much ph is it? I washed ph5 last time, so I can't crystallize.
 

btcboss2022

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I Dont know what pickling means sorry.
PH for washing must be 2 in acid stage and 12-13 in alkali stage.
 

花谢花开

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Is the master still there? I have completed the splitting of the L-isomer in the water in your way. In the powder, does this powder still need to be added with water to continue to split? It seems that the split is incomplete. How do you deal with it? What should I do if I continue to split?
 

btcboss2022

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You must turn it in FB again and later you decide.
If you need a complete guidance I have this service offered in the forum.
Thanks
 

Akashic

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@btcboss2022 very nice shards my man! looks like you got it down pat, my Xtals get better as im always trying to improve tech, currently-clean clear FB > et20 hcl gas > filtered light vaccu to dry >reX boil ipa acs to solved-reduce till xtal starts in solution-cover vessel opening w/filter paper insulate w/ dish cloth to slow cooling>few hrs @ room temp > cap and place in freeze 1hr > filter light vaccu >vac oven 50*c med vaccu
any tips/recommendations @btcboss2022?? Ive been on the quest for growing large extra dense shards for quite some time now, I’d like to try crashing hcl product thats solved into liquid nitrogen sometime
 
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