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Kristallisation von Mephedron (4MMC)
Hallo zusammen!
Wie kann ich eine fertige wässrige Lösung von Mef mit NaCl kristallisieren, wenn ich ursprünglich kein Mehl hatte? Nehmen wir an, ich habe eine Basis von mef in Dichlormethan und werde sie mit 135 ml Wasser pro 100 mef ansäuern, während ich mef in Wasser auflöse - ich gebe mef nicht in Mehl, sondern sofort in Wasser
In welchem Stadium soll NaCl zugegeben werden und in welchen Anteilen. Nach der oberen Erfahrung gibt der Autor 23 Gramm pro 100 Gramm Mef an, aber er hat 100 Gramm Mef in 100 ml Wasser aufgelöst. Und meine Oxidation erfolgt bei einer Zahl von 135 ml pro 100 g des Produkts.
Wie lange bilden sich die Kristalle bei der NaCl-Salzlösungsmethode? Welche Größenfraktionen werden erhalten? Wie lange sollte das Produkt im Gefrierschrank aufbewahrt werden? Beeinflusst die Einwirkungszeit die Größe der Kristalle?
Ich danke Ihnen allen!
Wie kann ich eine fertige wässrige Lösung von Mef mit NaCl kristallisieren, wenn ich ursprünglich kein Mehl hatte? Nehmen wir an, ich habe eine Basis von mef in Dichlormethan und werde sie mit 135 ml Wasser pro 100 mef ansäuern, während ich mef in Wasser auflöse - ich gebe mef nicht in Mehl, sondern sofort in Wasser
In welchem Stadium soll NaCl zugegeben werden und in welchen Anteilen. Nach der oberen Erfahrung gibt der Autor 23 Gramm pro 100 Gramm Mef an, aber er hat 100 Gramm Mef in 100 ml Wasser aufgelöst. Und meine Oxidation erfolgt bei einer Zahl von 135 ml pro 100 g des Produkts.
Wie lange bilden sich die Kristalle bei der NaCl-Salzlösungsmethode? Welche Größenfraktionen werden erhalten? Wie lange sollte das Produkt im Gefrierschrank aufbewahrt werden? Beeinflusst die Einwirkungszeit die Größe der Kristalle?
Ich danke Ihnen allen!
Bei dcm kann man das nicht so machen, man muss Wasser für den Säuerungsprozess verwenden und dann z. B. Ipa einsetzen, um sofort den Kristallisationsprozess zu starten. Naci ist überhaupt nicht erforderlich, es ist Unsinn. und Sie können nicht einfrieren, weil der Kristall nicht in Form von Glas und Kristallpulver nur herauskommen wird
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
and later i used only ceramic lamp
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
Now i want to make these on purpose but how... without using loads of beakers as a waste bin
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?
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?
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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- By SunDay
ohh good point, remember one post posted. Closed crystalization beaker, ar put under the pilow too keep warm. So I put in the towel and put under the 250w lamp ~34C. after 12h I will tell results. I need to get hard crystals of mef. If you know more methods to try please tell i will try
- By William D.
You can use more water and a fridge to speed up the process. If the crystals are too small, you can add water, dissolve and repeat the process again.
Result of 150g mmc 1:1 watter. 80celcius solution, put in towels at ~24c. after 12h got ~38g crystals like these, mother liquid must be evaporated to get rest mmc. I dont know what i did, becouse second try of this method was not succesful at all. But i Want to get crystals like these
any advises?
Last edited by a moderator:
- By William D.
You need to understand the theoretical yield (how much acid you used) and keep the same proportions for the product, water and temperature so that the result is stable.
- By SunDay
Okay.. Sometimes its differs, becouse I cant achieve full control of reaction(time to time its going better), but mostly for 100g bromo 40ml 28%hcl
But what does crystallization have in common with recrystallization. I already have white, no odour crystals but suggar size and want to make bigger - "like flower". today i got it again flower like. but from 80g got ~20g flowers then put to fridge and all my "flowers" now in the tiny snow flakes
But what does crystallization have in common with recrystallization. I already have white, no odour crystals but suggar size and want to make bigger - "like flower". today i got it again flower like. but from 80g got ~20g flowers then put to fridge and all my "flowers" now in the tiny snow flakes
And again 1:1 watter, towels slow cooling.. and got these. clean but nor nice I want to get crystals like other time... Whats wrong guys?
Last edited by a moderator:
- By William D.
This product is even more convenient to use, even if you don't like the size of the crystals.