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Acidify with hydrochloric acid in IPA instead of acetone?

Do I understand correctly? You give 1kg bk4, 2L m40, 2L dcm. The temperature in 10 minutes automatically rises to above 36 degrees, then you turn on the heating on the stirrer and so you mix 2 hours at 40 degrees, right?

Acidification always leads to PH around 6. When you write about the refrigerator, you mean putting the neutralised freebase in the fridge to make the whole product fall out? Do you think so much product could have been dissolved? Is it normal that after adding half of the m40, the temperature...

Can I also ask for some tips on the reaction to benzene? Currently, on benzene, the yield on crystal is around 53-55%. Maybe something will be useful. Regards and alletings

Yes, equal to the volume of water twice and once 10% sodium bicarbonate solution. I am surprised by the very low efficiency where I get about 53-55% on the crystal. It is also strange that when I add half of the m40, at the second half the reaction is no longer exothermic, and the temperature...

Hi. After reconstitution of BK4 in DCM (25-26 degrees C), the flask was placed on the agitator and the maximum stirring was turned on. Heating is disabled. The entire m40 was added at once, after 5-10 min the temperature began to rise to 35-37 degrees in 30-35 minutes, after which it began to...

After reaching 40 degrees, I start adding m40 in small portions so as not to exceed 55 degrees. I keep the temperature in the range of 50-55 degrees C. With the initial batches of adding m40, the temperature immediately rises when it automatically falls down, I add another portion of m40. After...

I'm curious about what to do next. I've read that it needs to be vaporised and washed down to white.

Crystal proper

Splinters from the walls of the vessel

Nie wiem czy to Ci pomoże ale 4mmc w proszku lub szkle po kilku tygodniach w temperaturze pokojowej kompletnie się nie zmieniło. Moc, aromat bez zmian.

The more purity and efficiency I managed to achieve, the more confident I became that I knew all about synthesis in Benzene.... A stupid man is born and a stupid man will die :D Btw. Last time it took 3h and 10min from reaching 60 degrees to turning off the heating and proceeding to flush the...

Using 200g BK4 after reaching 40 degrees C, adding m40 in such a way as not to exceed 60 degrees C takes about 25 minutes. When adding m40, should the mixture be cooled to add the entire portion fairly quickly?

Full respect for your help. I will keep trying. After many attempts and hundreds of g converted, I finally arrived at a high yield with maximum powder purity just after acidification, even before rinsing with acetone. Whereas previously I needed more than 15L of acetone for 1kg of 4MMC...

I am not saying that I have to be completely right. I saw a post here on the forum by another user who mentioned an ascorbic acid supplement. I put down some 4MMC powder from a batch and added the said vitamin C to its crystallisation. The final crystal with vitamin C, at least in my case...

Hello, I currently produce a very high quality 4MMC in benzene. No less in my country its purchase in larger quantities is quite cumbersome. I have heard from some sources that it can be interchanged 1:1 with Toulen. In benzene I run the reaction for 3h at 60 degrees. For Toulen will it be...

Adding vitamin C does not make the slightest sense. The product later appears greasy

Per 1g of 4mmc 1.5ml of water, heated until everything dissolved. After cooling added another 0.5ml of acetone

Well-cleaned powder, low dissolving temp and this is what it looks like after standing motionless at room temperature for 18h

Well-cleaned powder, low dissolving temp and this is what it looks like after standing motionless at room temperature for 18h