Do you think this is the right place to discuss this?
I mean, you read about those dedicated forums in the other thread, you should go there instead.
They have lots of informations on exactly that already, writeups too...
But it is actually quite simple.
A problem is the good solubility of ephedrine in water still.
First you extract the plant matter with diluted HCl, ideally under boiling for a few hours.
Then you filter the insoluble stuff out, and continue when you obtain a clear solution.
You dissolve a lot of NaCl into this and basify it with solid sodium carbonate, and then add a strong lye solution, just a little bit of the latter.
The volume needs to be kept small, this is why its best to use solid soda to basify.
Then you extract it with DCM or chloroform, and you use lots of it, like an equal volume of the basic solution, three times.
Now wash(water and brine) and dry the chloroform solution, then you can acidify directly, or you distill the chloroform off and continue to form the
salt of your choice, ideally after taking the residue up in acetone or in alcohol.
Thats it!
Expect very, very little though |