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Mephedrone (4MMC) crystallization

G.Patton

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Hello, depends on what do you need (large crystals or small ones)
 

Garry

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If the requirements is small one then what will be the process and what time it will consume ?
 

rado

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Hello everyone!

How can I crystallize a ready-made aqueous solution of mef using NaCl if I didn't have flour initially? Let's say, i have a base of mef in dichloromethane and I'm going to acidify it in excess of water 135 ml per 100 mef, while dissolving mef in water - I do not put mef in flour, but immediately in water

At what stage to add NaCl and in what proportions. According to the upper experience, the author indicates 23 grams per 100 grams of mef, but he has 100 grams of mef dissolved in 100 ml of water. And my oxidation occurs at a figure of 135 ml per 100 g of the product.

How long do crystals form in the NaCl salt solution method? What size fractions are obtained? how long should the product be kept in the freezer? Does the exposure time affect the size of the crystal?

Thank you all!​
 

PolandoEmingarnte

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on dcm you can't do it like that, you need to use water in the acidification process and then use, for example, ipa to immediately start the process of crystallization. Naci is not needed at all, it's nonsense. and you can not freeze because the crystal will not come out in the form of glass and crystal powder only
 
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mcdonalds

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amigo,
quieres decir que en la reaccion entre la bromoketona y la metilamina utilizas dmso en lugar de Diclorometano?
 

Savitar

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Brine cristalisation grom yesterday - everything happen in about one hour. But its recrystalisation of 3cmc. At the same time i maked 3 other kind of crystalisation. The biggest crystal (yes one big crystal) is in only vodka. The most beautifull is on 1 ml dh2o/1g powder, boiled few minutes in atomic generator 🤣 and later i used only ceramic lamp
DztAlRVKyO
SgIr2jOhmx
 

UltraHQ

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Can you show the one big crystal that you mention?
 
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Savitar

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I have only after crashing and washing in progress...
GE0tZWRQrh
 

UltraHQ

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Oh nice, if you break it up more it will help you remove the colouration of the crystal otherwise the acetone won't be able to penetrate the solid mass of that crystal. You could probably get that white if it was broken down more.
 

TheVacuumGuy

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My latest crystal, from a failed batch which i put in a beaker and used as container to drip remainders of solvents, acids andsoforth. After some weeks i needed the beaker and while cleaning it, i found these.

Now i want to make these on purpose but how... without using loads of beakers as a waste bin :ROFLMAO:



LrQ9zp3AcS
 

Yogi

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TheVacuumGuy

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I haven't thought of that. Gonna try it straight away 🤭😑
 

SunDay

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Good evening science partners,
Evaporated 4mmc from watter solution and I wasnt happy in crystals colour and shape. I put watter/crystals 1:1 to recrystalize. But its going so fast. In one hour i got crystal film on top of solution in beaker, so evaporation its not possible in that point. Now I see that there is formed crytsals on walls and bottom. So i cut that film a little bit to see what inside, and there is much liquid. What Im doing wrong in these steps?
 

dnBQByvHb8Zkawbjpx

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1:1 ratio means you used hot water which you then allowed to cool down. This process crashes out a lot of solid matter, but the crystals are small, tiny and needle-like in fact. If you can slow down the cooling to give them more time they'll be larger. Once the solution cools down, only about a half of the crystals are formed and the other half remain in the solution. You can strain the crystals and let the remaining mother liquor to evaporate further still to grow more crystals.
 
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