Mephedrone synthesis (4-MMC) in NMP solvent. Large scale.

[bubuka]

I would like to make MMC in NMP. The problem is that I don't have pH paper. How problematic is it if I over-acidify at the end? Or could you tell me how much 30% hydrochloric acid I should add at the end when using 100g of 2b4m? I'm acidifying in DCM+water.

 

[Dr. MMX]

you may buy ph sensor instead of ph paper.

 

[WillD]

If you do not have enough experience, you need to use indicators to obtain the maximum yield. If this is not possible, we can calculate you the amount of acid minimal, which you can add to get the product.

 

[Dr. MMX]

dont use 30%, use 38% or the best you may buy.
you must have ph paper to determinate ph... its usually different each time.

 

[$!$]

Bulshit 30% is no problem have more only water like 37%.
And use papier pH better like electrik pH for shure

 

[Dr. MMX]

does electric one lie?

 

[TheVacuumGuy]

If you buy electric, do yourself a favor by spending extra to get a glas probe. Otherwise it will dissolve (yes, been there)

 

[c01db100d]

can we replace
hydrochloric acid to hydrobromic 48%
if its possible how much product yield and how much quantity we want

 

[WillD]

Yes, you can use this replacement. The weight of the product under the same conditions will be slightly more.

 

[c01db100d]

Thank you for your valuable advice
@Dr. MMX @WillD @G.Patton

 

[4-mmc_india]

how much temp for that?

 

[$!$]

But cost what mmc od chemicals to mmc?