Sinteza 4-MMC (mefedrona). Bromiranje v diklormetanu.

Dxrk

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Pozdravljeni, fantje. Ali lahko, fantje, podate seznam reagentov z razmerji in seznam potrebne opreme. Hvala.
 

CristalKing

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Veliko preveč. Največ 0,430 ml 37% HCL, bolje celo 0,415 ml 37% HCL, kristali bodo bolj prozorni ...
 

kinshasa99

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Pozdravljeni vsi, zamudil sem, da bi ostal na ravni 5,5 ph. po pomoti sem dodal več hcl in ph je zdaj 2.can someone tell how to rise the ph.
Hvala vnaprej.
 

CristalKing

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Po mojem mnenju je ph2-3 popoln. Izdelek ima malo preveč kisline, vendar bo izdelek bolj bel, če bo ph približno 5-6, bi bil izdelek lahko bolj rjav.
 

CristalKing

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Oprostite, mislil sem 430 g in ne ml
 

kinshasa99

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Torej, če sem dobro razumel, ne potrebujete grelne plošče, če uporabljate DCM? v steklenico morate dati le 2br4m, dcm in metil ter jo vsakih 10 minut pretresti, steklenica pa mora biti v vodni kopeli? zveni zelo zanimivo...
Kako nadzoruješ temperaturo?
 

hazel

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V vodi nadzoruje temperaturo
 

kinshasa99

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če je steklenička zaprta 2 uri, v njej ni tlaka?
 

G.Patton

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Pozdravljeni, prosimo vas, da vaše sporočilo prevedete v angleščino in spoštujete naša pravila. Ne smete uporabljati nobenega jezika, razen v skupnem javnem delu foruma BB. Svoj jezik lahko uporabljate v lokalni skupini v svoji državi ali v sporočilu PM. Nadaljnja sporočila v drugačnem jeziku bodo izbrisana.
 

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This what im use to made 4mmc
 

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4mmc hcl
 

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Kapljite kislino in preverite ph jutri več slike
 

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4 mmc hcl v acetonu
 

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breathing.fire

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Nekdo poskusite narediti staro metodo, ko za 1 kg 2b4m daste samo 750 metilamina v vodi 40 % ?Poznam o e človeka, ki je dal samo ta del metilamina in reakcija deluje normalno z dobrim izkoristkom. zakaj ljudje dajo 2 l metilamina ali več
 

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Kako čist je mmc bro potem je kemik, ki ga niste naredili ReplyReport ---
 

epson

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Ali dcm ne bo raztopil HDPE?
 

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subzero013

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Pozdravljeni, niste mi mogli povedati glede enega trenutka pri sintezi. Pod vodno plastjo porabim kislino, prosti bazi v DCM dodam vodo in klorovodikovo kislino, nato ločim vodno plast z v njej raztopljenim Mefedronovim hidrokloridom in z njo delam naprej. Vodna plast z raztopljenim hidrokloridom je prozorna, vendar je rumeno obarvana in ima vonj po kislini, tudi po trikratni uporabi DCM. Kako lahko takšno vodno raztopino očistimo? Vonj po kislini se pojavi zaradi presežka HCL, to je očitno, proti tej količini kisline se lahko borite, toda kako odstraniti rumeno barvo? Kislo-alkalna ekstrakcija? Če jo je mogoče uporabiti v tem primeru, mi povejte razmerje in katero alkalijo je bolje uporabiti?
 

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Pozdravljeni, žal mi je, da vas ne razumem. Pri navedbi lahko pritisnete gumb "Odgovori" in jasno vprašate.
Lahko dodate NaHCO3 ne dobite 6-6,5 pH

Če želite opraviti ekstrakcijo A/B, lahko uporabite katero koli alkalijo (NaOH ali KOH).
 
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