Example of Methamphetamine Isomers Separation

[Sjeik]

Tem que ser assim...

 

[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]

Eu recomendaria o freezer. Nesse caso, quanto mais frio, melhor. As temperaturas nunca foram medidas, eu sempre armazeno meu metanol no freezer.

-A polaridade (polarímetro testado) após uma passagem

- H20 (68-73% d)

- Metanol (71-76% d)

- Processo de Rusznak, tolueno como substituto do benzeno (ainda falha racêmica)

- Pope - Peachey: h20/ácido clorídrico
(65-80% d depende do tempo)

Prefiro o método com h20 por causa do custo, do tempo e da simplicidade.

Espero ter ajudado.

 

[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?