Example of Methamphetamine Isomers Separation

[Sjeik]

Tam ir jābūt tādam..

 

[lalalander]

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]

Es ieteiktu šo saldētavu. Šajā gadījumā, jo aukstāks, jo labāk. Temperatūra nekad netika mērīta, es vienmēr glabāju metanolu saldētavā.

-Polaritāte (pārbaudīta polarimetrā) pēc viena gājiena

- H20 (68-73% d)

- Metanols (71-76 % d)

- Rušņaka process, toluols kā benzola aizstājējs (joprojām nav racēmisks)

- Pope - Peachey: h20/hidrohlorskābe
(65-80 % d ir atkarīgs no laika)

Es dodu priekšroku metodei ar h20 izmaksu, laika un vienkāršības dēļ.

Es ceru, ka varēju palīdzēt.

 

[lalalander]

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?

 

[William Dampier]

You can heat the mixture, obtain a solution (add a little solvent if slight heating doesn’t help), and then crystallize it more controllably with slow cooling to get a more easily filterable fraction.

 

[lalalander]

Thanks, William.