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4MMC/MEC large crystals

Sergey Kush

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This crystal where You put for 1 g 0,7 ml water are hard to?What temperature there is 8 or - 8 and 12 hours
breathing.fireYes. the optimum temperature is -8C. but you can leave it at room temperature (+20C), but then a lot of mephedrone will remain in the liquid phase. if the temperature is below -8C, then the water will turn into ice, and it will not be possible to separate the crystals from the water
 

Sergey Kush

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This crystal where You put for 1 g 0,7 ml water are hard to?What temperature there is 8 or - 8 and 12 hours
breathing.firethe main condition for successful crystallization by this method is to ensure complete rest and immobility of the solution. even if you even touch the container, or clap your hands loudly next to the container, all mephedrone will instantly crystallize like an avalanche into a fine phase. and instead of crystals you will get viscous porridge
 

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after the reaction of 2b4m with methylamine in DCM, the free base of mephedrone is washed 2-3 times with an equal volume of water. the reaction with methylamine lasts 4 hours at a temperature of 32-36C. do not bring DXM to a boil (38C), as DHM hydrolyzes when boiling, the free base will be heavily contaminated. if the temperature/time is observed, the free base will be very clean.
Sergey Kush
thanks for answering
so do you add all the methylamine at once to 2b4m in dcm at 32-36C and then keep it at this temperature for 4 hours?
or do you add the methylamine slowly to 2b4m in the time span of 4 hours, and also keeping the reaction mixture at 32-36C?
which way is correct?
 

Netflix

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How much do you use dcm on 1kg 2b4m ??
thanks for answering
so do you add all the methylamine at once to 2b4m in dcm at 32-36C and then keep it at this temperature for 4 hours?
or do you add the methylamine slowly to 2b4m in the time span of 4 hours, and also keeping the reaction mixture at 32-36C?
which way is correct?
ChingShih
 

Sergey Kush

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thanks for answering
so do you add all the methylamine at once to 2b4m in dcm at 32-36C and then keep it at this temperature for 4 hours?
or do you add the methylamine slowly to 2b4m in the time span of 4 hours, and also keeping the reaction mixture at 32-36C?
which way is correct?
ChingShihit is more correct to pour the entire volume of methylamine at once, but then it is very difficult to maintain the desired temperature. I do this: first I add 1/2 methylamine, and after 1 hour I add another 1/2 methylamine and continue stirring for another 3 hours. effective cooling is required in order not to raise the temperature above 36 ° C, since the reaction is exothermic and proceeds with a large release of heat
 

Sergey Kush

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thanks for answering
so do you add all the methylamine at once to 2b4m in dcm at 32-36C and then keep it at this temperature for 4 hours?
or do you add the methylamine slowly to 2b4m in the time span of 4 hours, and also keeping the reaction mixture at 32-36C?
which way is correct?
ChingShihyou need to understand that in our country (Russia - yes, that same abode of evil, where a fucking dictator rules, but good people live))) 2b4m is banned. so I have to make 2b4m by brominating 4m. and I get a concentration of approximately 2.5 liters of DCM per 1kg 2b4m. this must also be taken into account. available concentration of methylamine - 38% in aqueous solution
 

breathing.fire

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I1 kg 2b4m
you need to understand that in our country (Russia - yes, that same abode of evil, where a fucking dictator rules, but good people live))) 2b4m is banned. so I have to make 2b4m by brominating 4m. and I get a concentration of approximately 2.5 liters of DCM per 1kg 2b4m. this must also be taken into account. available concentration of methylamine - 38% in aqueous solution
Sergey KushHow much You use methylamine for 1 kg 2b4m
 

breathing.fire

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And what yield You have from this powder
 

Bartholomeus

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it is more correct to pour the entire volume of methylamine at once, but then it is very difficult to maintain the desired temperature. I do this: first I add 1/2 methylamine, and after 1 hour I add another 1/2 methylamine and continue stirring for another 3 hours. effective cooling is required in order not to raise the temperature above 36 ° C, since the reaction is exothermic and proceeds with a large release of heat
Sergey Kush
Sergey thanks very very much for you answer on my questions, do you close the reaction vessel with stopper or do you put condenser on top of it?
Is it better to stop the Methylamine gas from escaping completely, or is it better to try to condense it back?
If you put stopper on reaction vessel, does it produce pressure which has to be released during reaction?
And last, what is your yield from 1kg 2b4m? how much powder and how much then crystal after crystalization?
 

Sergey Kush

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Sergey thanks very very much for you answer on my questions, do you close the reaction vessel with stopper or do you put condenser on top of it?
Is it better to stop the Methylamine gas from escaping completely, or is it better to try to condense it back?
If you put stopper on reaction vessel, does it produce pressure which has to be released during reaction?
And last, what is your yield from 1kg 2b4m? how much powder and how much then crystal after crystalization?
ChingShihI do not close the reaction vessel so as not to create excess pressure. the vessel is open all the way. I don't use a condenser or dephlegmator either. methylamine leaves the vessel, but only a small part - this is not essential (for this we use an excess of methylamine). yield with 1kg 2b4m approximately 670-690g of flour. in crystals - 640-650g
 

tetrazole

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Hi guys. Any ideas under what conditions it is possible to obtain such 4mmc crystals?
 

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hlebsladky2

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I do not close the reaction vessel so as not to create excess pressure. the vessel is open all the way. I don't use a condenser or dephlegmator either. methylamine leaves the vessel, but only a small part - this is not essential (for this we use an excess of methylamine). yield with 1kg 2b4m approximately 670-690g of flour. in crystals - 640-650g
Sergey KushPrivet! Nice to see you back, Serega!
 

hlebsladky2

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I do not close the reaction vessel so as not to create excess pressure. the vessel is open all the way. I don't use a condenser or dephlegmator either. methylamine leaves the vessel, but only a small part - this is not essential (for this we use an excess of methylamine). yield with 1kg 2b4m approximately 670-690g of flour. in crystals - 640-650g
Sergey KushDo you know any fine way to craft 4methylpropiophenone? Since, it's hard to find now as far as you know.
 

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subzero013

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4-MMC in dry methanol. T 15-20C, 1 week
Sergey KushThese photos were posted by the user with the same nickname as you have on another forum more than a year ago and there he claimed that they were received not from methanol, but from a mixture of methanol and nephras. The time of crystallization then you indicated not 1 week, but 9 hours. Are you a fake? As far as I remember, Kush had problems and in Russian -speaking forums he did not appear since summer.
 
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