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Example of Methamphetamine Isomers Separation

Sjeik

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Tem de ser assim...

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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Eu recomendaria o congelador. Neste caso, quanto mais frio, melhor. As temperaturas nunca foram medidas, guardo sempre o meu metanol no congelador.

-A polaridade (polarímetro testado) após uma passagem

- H20 (68-73% d)

- Metanol (71-76% d)

- Processo Rusznak, tolueno como substituto do benzeno (racémico ainda falhado)

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

Prefiro o método com h20 devido ao custo, tempo e simplicidade.

Espero ter ajudado.
 

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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