Question 4cmc big crystal help

[tutabig]

Hi i need help getting large clear crystals. Does anyone have experience with 4cmc?

 

[animeboro]

Ephedrine Hydrochloride Recrystallization

Fast and pure. https://bbgate.com/threads/synthesis-of-ephedrine-hydrochloride-and-chemical-analysis.9537/

bbgate.com