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400g bromoketone 1000ml DCM 800ml Methylamine 39 Celsius 6 hours (unintentionally, fell asleep) In the morning added 1000ml water.

Afaik methylamine is added in quadruple excess (foolproof). It depends on the conditions. High temps, rapid stirring, open vessel, ensures a lot of it evaporates (which is not what we want). I roughly use x 1.5 It's actually a matter of just trying and find the optimal variables as you go ...

My experience is that you can easily do it at 40 (rm temp! Use glass thermometer which goes into your mixture). DCM seems very reluctant to start actually boiling (like it has some buffer zone of sorts). If I increase temp it stubbornly keeps sitting at 40. Either way. That relation time/temp...

Unfortunately it's not active anymore but cb3rob.net was the real deal.

Only noticed this until now.... on 3:15, stopcock is still in the funnel and when taking it off a bump of acid comes out. I Made that mistake a couple of times. lol

woops wrong vid

Did you see the distinct layers before vacuum distill? In EA afaik, it should be very obvious.

Trying HCL gasification instead of dropwise addition. I guess I *****ed up? Ps: generator of Ammonium Chloride + H2SO4

Pricewise: no. But I haven't used a fridge compressor so can't tell.

I just purchased a heavy duty high pressure water pump (no aliexpress or amazon). Using a large plastic box and appropriate hosing, it's recirculating water. Then at the outlet, an aspirator is placed. So the combination can also scrub gas and pump liquids if needed. Can get a high enough...

Yep, doesnt work :)

video says: - no heating - 20 minutes reaction time - color changes very visible my experience is : - keep at 40 - 30 minutes reaction time - color changes are subtle, but at some point it will turn brown (when dark yellow, just wait more).

Or the poor man's solution: creating a vacuum in a secondary flask and connect 😅

@K-Cyanide Thanks for this detailed procedure. IMHO it's one of the best here actually.

I was looking over the properties of Hexane, and it seems a good fit do use as solvent . It is also cheap. Anyone experience with it for Mephedrone synthesis ?

FFS, guess what happened here, just now :ROFLMAO: Tried to rescue it nonetheless. failed

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?

Not answering the question.. If you accidentally go too low in pH, just leave it like that or use a pinch of sodium bicarbonate (but it might harm product just as well)

I don't think you should care too much about toxicity. Yes it has shown Benzene is "carcinogenic", given when working in it every day in and out. I wonder why people are talking toxicity and shit while they're mixing all kind of hefty materials to making *****ing drugs . Adding some wisdom...

Yes possible