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Example of Methamphetamine Isomers Separation

Sjeik

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Das muss so sein...

FkJsC5vV1D
FkJsC5vV1D
 

lalalander

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Does using a larger amount of water so that the mixture does not turn into a paste affect the solubility of the L-Meth-tartrate salt?

Because it's almost impossible to work with the vacuum filter when it's like a paste.

Maybe I should add freebase slowly to avoid amorphous paste solid?
 

Acab1312

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Ich würde den Gefrierschrank empfehlen. In diesem Fall gilt: je kälter, desto besser. Die Temperaturen wurden nie gemessen, ich lagere mein Methanol immer in der Tiefkühltruhe.

-Die Polarität (Polarimeter getestet) nach einem Durchgang

- H20 (68-73% d)

- Methanol (71-76% d)

- Rusznak-Verfahren, Toluol als Benzolersatz (immer noch nicht racemisch)

- Pope - Peachey: H20/Salzsäure
(65-80 % d ist zeitabhängig)

Ich bevorzuge die Methode mit h20 wegen der Kosten, der Zeit und der Einfachheit.

Ich hoffe, ich konnte helfen.
 

lalalander

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Does using a larger amount of water so that the mixture does not turn into a paste affect the solubility of the L-Meth-tartrate salt?

Because it's almost impossible to work with the vacuum filter when it's like a paste.

Maybe I should add freebase slowly to avoid amorphous paste solid?
 
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