Mephedrone (4-MMC) acidification how do you do it?

[SonicNL]

Hi.

I was wondering what route you follow in the acidification stage after washing the freeebase.

After studying and experimenting, the way I use right now is adding acetone 1:1 volume to the base with HCl solution 1:5 to acetone.

This way it is the easiest to control the temperature. I too had 2 times that the freebase turned red. I assume this was because of too much unreacted bk and I noticed that it occurs more frequently when the freebase is more concentrated. That said I prefer an 1:5 ratio on bk to solvent, where others use 1:3. You can always add solvent after reaction took place but this adds an extra step.

I also read about acidification under water. This is also a good way to go, because the 4-MMC will dissolve in the water and this is easier to store/transport from your cooking location. It also makes the freezer step not per se necessary because most product won't stay in the organic layer.

What way do you prefer, and why?

 

[SonicNL]

Kick

 

[SonicNL]

Also I was wondering when you acidificate with water, can this liquid be re-used in acidification for the next batch? (Add the HCl to water and sour the next batch?

 

[TheVacuumGuy]

acetone 1:1 volume to the base with HCl solution 1:5 to acetone.

Do you mean that, for example you have 100ml of base you are adding 100ml acetone, and acidify with a 1:5 hcl/acetone solution or add 100 ml acetone, and then HCl 20ml?