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Example of Methamphetamine Isomers Separation

Sjeik

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Musí to tak být..

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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Mrazák bych doporučil. V tomto případě platí, že čím chladnější, tím lepší. Teploty nebyly nikdy měřeny, metanol vždy skladuji v mrazáku.

-Polarita (testováno polarimetrem) po jednom průchodu

- H20 (68-73 % d)

- Metanol (71-76 % d)

- Rusznakův proces, toluen jako náhrada benzenu (stále se nepodařilo dosáhnout racemického stavu)

- Pope - Peachey: h20/kyselina chlorovodíková
(65-80 % d je závislé na čase)

Upřednostňuji metodu s h20 kvůli nákladům, času a jednoduchosti.

Doufám, že jsem pomohl.
 

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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