Mefedrooni (4MMC) kristallisatsioon
Tere kõigile!
Kuidas ma saan kristalliseerida valmis mef vesilahust, kasutades NaCl, kui mul ei olnud algselt jahu? Oletame, et mul on mef-i alus diklorometaanis ja ma kavatsen seda happeseks muuta 135 ml vett 100 mef-i kohta, samas lahustades mef-i vees - ma ei pane mef-i jahus, vaid kohe vees
Millises etapis lisada NaCl ja millises proportsioonis. Ülemise kogemuse järgi märgib autor 23 grammi 100 grammi mef kohta, aga tal on 100 grammi mef lahustatud 100 ml vees. Ja minu jaoks toimub oksüdeerumine näitaja 135 ml 100 g toote kohta.
Kui kaua moodustuvad kristallid NaCl-soolalahuse meetodil? Millise suurusega fraktsioonid saadakse? kui kaua peaks toodet hoidma sügavkülmas? Kas ekspositsiooniaeg mõjutab kristallide suurust?
Tänan teid kõiki!
Kuidas ma saan kristalliseerida valmis mef vesilahust, kasutades NaCl, kui mul ei olnud algselt jahu? Oletame, et mul on mef-i alus diklorometaanis ja ma kavatsen seda happeseks muuta 135 ml vett 100 mef-i kohta, samas lahustades mef-i vees - ma ei pane mef-i jahus, vaid kohe vees
Millises etapis lisada NaCl ja millises proportsioonis. Ülemise kogemuse järgi märgib autor 23 grammi 100 grammi mef kohta, aga tal on 100 grammi mef lahustatud 100 ml vees. Ja minu jaoks toimub oksüdeerumine näitaja 135 ml 100 g toote kohta.
Kui kaua moodustuvad kristallid NaCl-soolalahuse meetodil? Millise suurusega fraktsioonid saadakse? kui kaua peaks toodet hoidma sügavkülmas? Kas ekspositsiooniaeg mõjutab kristallide suurust?
Tänan teid kõiki!
dcm-il ei saa seda niimoodi teha, tuleb kasutada vett hapestamise protsessis ja seejärel kasutada näiteks ipa, et alustada kohe kristalliseerumise protsessi. Naci ei ole üldse vaja, see on jama. ja külmutada ei saa, sest kristall ei tule välja ainult klaasi ja kristallipulbri kujul.
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 suhe tähendab, et kasutasite kuuma vett, mida lasite seejärel jahtuda. See protsess purustab välja palju tahkeid aineid, kuid kristallid on tegelikult väikesed, pisikesed ja nõelataolised. Kui te saate jahutamist aeglustada, et anda neile rohkem aega, siis on nad suuremad. Kui lahus jahtub, moodustub ainult umbes pool kristallidest ja teine pool jääb lahusesse. Võite kristallid sõeluda ja lasta allesjäänud emalahusel veel edasi aurustuda, et kasvaks rohkem kristalle.
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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
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.
This can be obtained from a mixture of solvents, but the water should be present.
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?
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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
- By Dr. MMX
Then simply dissolve the solution in the saturated solution of h2o( they are alredy purified once) and perform gradual crystalisation.
You can use the method which will grow them "more attractive" but it takes 1-3 weeks. You can heat solution to 80c and gradually decrashe it to the minimum but do use 3 ml of h2o per 1 g of 4mmc, they will probably grow bigger.
You can use the method which will grow them "more attractive" but it takes 1-3 weeks. You can heat solution to 80c and gradually decrashe it to the minimum but do use 3 ml of h2o per 1 g of 4mmc, they will probably grow bigger.
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?
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This product is even more convenient to use, even if you don't like the size of the crystals.