Example of Methamphetamine Isomers Separation

[Sjeik]

Musí to tak byť..

 

[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]

Odporúčam mrazničku. V tomto prípade platí, že čím chladnejšie, tým lepšie. Teploty sa nikdy nemerali, metanol vždy skladujem v mrazničke.

-Polarita (testovaná polarimetrom) po jednom prechode

- H20 (68-73 % d)

- Metanol (71-76 % d)

- Rusznakov proces, toluén ako náhrada benzénu (stále neúspešný racemický)

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

Uprednostňujem metódu s h20 kvôli nákladom, času a jednoduchosti.

Dúfam, že som mohol pomôcť.

 

[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?